Answer:
the well-lit upper layer of the ocean; algae and other producers can grow only in this surface layer
Which of the groups of organisms in the food web would most likely have accumulated the largest concentration of long lasting chemical pollutants in their bodies
The question is incomplete, the complete question is shown in the image attached
Answer:
F
Explanation:
The image shows a food web. A food web shows all the possible feeding relationships in an ecosystem.
We have to know that the concentration of chemical pollutants increases in organisms as you move up the food web. Higher level organisms tend to accumulate a greater concentration of chemical pollutants than the organisms that are lower in the food web.
Thus, the organism which appears at the highest level of the food web shown in the image will most likely have accumulated the largest concentration of long lasting chemical pollutants in their bodies.
Answer:
F. Gulls
Explanation:
Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. ... Most gulls are ground-nesting carnivores that take live food or scavenge opportunistically, particularly the Larus species. Live food often includes crustaceans, mollusks, fish, and small birds.
Which two scientists' experimentation and hypotheses led to an understanding of the presence of microorganisms and their relationship to diseases?
Answer:
Robert Koch and Louis Pasteur.
Explanation:
Robert Koch and Louis Pasteur are the two scientists' who discover the presence of microorganisms and their relationship to diseases. In 1876, Robert Koch performed experiments and made a hypothesis that microbes can cause disease in humans and other organisms while on the other hand, Louis Pasteur performed many experiments between the years 1860 and 1864 and made a hypothesis that the puerperal fever happens due to the infection of pyogenic vibrio in the blood.
The ability of a lung to recoil, or recover from stretch, is called ________.
Elastance is the capacity of a lung to recoil or rebound after strain.
What use does the lung serve?Respiration, a mechanism of gas exchange, is the major purpose of the lungs (or breathing). During breathing, Co₂, a metabolic waste product, exits the bloodstream while oxygen from air flowing enters. Reduced lung effect can be attributed to the lungs' diminished capacity to exchange gases.
Do your lungs allow us to survive?Typically, you need one lung or more to survive. In one instance, a patient had to have both lungs extracted and it was maintained alive for six days on life support before receiving a lung transplant. Since one needs both lungs to survive, this is not a routine treatment.
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Recently it was discovered Burmese python pet owners were releasing their unwanted reptiles into the Florida Everglades, which are highly
protected and are an important habitat for endangered species. Unfortunately, it took years for biologists to realize the devastating effects
the large snakes would have on this ecosystem.
Which of the following is a valid concern biologists should have regarding the invasion of the python into the everglades, and
how should biologists work to fix the issue?
A Concern: Pythons consume alligator eggs.
Solution: Blologists should build protective barriers around alligator nests.
B. Concern: Pythons consume fish and interfere with commercial fishing,
Solution: Blologists should restock the everglades with more fish.
c. Concern: Alligators consume pythons.
Solution: Biologists should work to capture alligators to help build python populations.
D. Concern: Panthers consume python eggs.
Solution: Biologists should work to capture panthers to help build python populations.
Option (A) is a valid concern because the loss of alligator eggs can affect the population of alligators and other species that rely on them as a food source.
What is a population?In biology, a population refers to a group of individuals of the same species that live in a particular geographic area and can interbreed with each other. The size of a population is determined by the number of individuals in the area and can be affected by factors such as births, deaths, immigration, and emigration.
Studying population dynamics is important in understanding how populations change over time and how they interact with their environment. This information can be used to inform conservation efforts and management of wildlife populations, as well as understanding how changes in the environment or other factors can impact populations.
This is a valid concern because the loss of alligator eggs can affect the population of alligators and other species that rely on them as a food source. Biologists can work to fix this issue by building protective barriers around alligator nests, which can prevent pythons from accessing the eggs.
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Which experiment would most likely contain experimental bias?
A.
A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
B.
A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.
C.
A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.
D.
A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
The experiment which would most likely contain experimental bias is a company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands which is therefore denoted as option D.
What is an Experiment?This is referred to as a procedure which is usually carried out in the laboratory and it is used to support or refute a hypothesis.
Experimental bias on the other hand is the tendency of a scientist or researcher to introduce bias into an experiment through unconsciously affecting the results, data etc. This is because they would want to get values which would show that their drugs are more effective and suitable for use so as to promote more sales and is the reason why some form of bias may be introduced into the findings which was why it was chosen as the correct choice.
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what is biodiversity. in your own words. but be more detailed
Answer:
variation of life at all levels of biological organization.or biodiversity is the variation of life given ecosystem,biome. or the entire earth.biodiversity is often used as a measurebof the health of biological systems.
Is the claim, "Despite not being a plant, you get your energy from the sun." accurate?
Write a paragraph explaining your reasoning.
Answer:
Yes (kind of), because even though we do not use the sun as directly as say plants, we still rely on the sun on a daily basis, however we don't necessarily get our energy from it, like plants do.
The sun produces light as well as heat, also known as solar energy. This makes it possible for life to exist on Earth, and we can use solar energy to power a wide variety of useful things, however sun/solar energy is not the only way to get electricity.
As we know, plants need sunlight to grow, although humans don't grow by being exposed to sunlight, sunlight helps grow plants which animals, including humans, need for food as well as oxygen they produce.
Most livestock we eat, cows for example, need plants to survive and many people eat meat, and even if you don't you'd eat plants which, once again, need sunlight to grow. Also, without heat from the sun, Earth would freeze.
OVERALL...
It's kind of like a chain, we get our energy from things that get their energy directly from sunlight. A short answer would be yes, but it's not quite as simple as that.
I hope this helps, hopefully you can use it to formulate an answer of some sort.
Which of the following organelles are involved in the general category of organelle heredity?
A) mitochondria and chloroplasts
B) R factors
C) Lysosomes and peroxisomes
D) Factors and episomes
E) Golgi and rough endoplasmic reticulum
The organelle in charge of transmitting hereditary features is the nucleus. The nucleus, represented by the letter Q, is where DNA is located. Choice B seems to be the appropriate answer as a result.
What characteristic of the cell determines heredity?We now know that the genetic material of the cell is stored in the DNA. Diagram 4-2. On the other hand, the main function of cellular proteins found in chromosomes is to control and bundle extremely long DNA molecules into manageable bundles that can fit into mitochondria and just be easily accessible by them.
What organelle contains the basic components of life's genetic code?Nucleus. The DNA deoxyribonucleic protein is housed in the nucleus, which is also known as the "command center" of the cell. Every single of the cell's processes, including.
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Positive space is which of the following?
O Area occupied by materials
O Open areas between materials
O Open space
O Closed space
Answer: An Open space!
Explanation:
I think it either B OR C. you can just choose one
Please place answers under questions so I know which is which. Thank you! :)
What reactants are used in light-dependent reactions (photosynthesis)?
What reactants are used in light-independent reactions (photosynthesis)?
Word Bank:
Reactants: ADP, ATP, Carbon Dioxide, NADP+, NADPH, Sunlight, Water
Reactants used in light- dependent reactions : Carbon dioxide, sunlight and water.
Through tiny holes in their leaves known as stomata, plants absorb carbon dioxide from the atmosphere. Most monocot plants have stomata on both surfaces of their leaves, while dicot plants and a few monocots only have stomata on the bottom epidermis of their leaves.Plants obtain water from the soil around their roots, and water travels via the xylem, a component of the plant's vascular system, to reach the leaves. The vascular bundle in leaves houses the xylem and phloem.The carbon dioxide and water molecules enter the leaf and then migrate into the cells of the mesophyll, the ground tissue layer that lies between the top and lower epidermis. These cells perform photosynthesis using water and carbon dioxide in organelles known as chloroplasts.Reactants used in light- independent reactions : ATP, carbon dioxide, NADPH.
The assembly of a glucose molecule is the final step in the light-independent processes, also known as the Calvin cycle. This stage of photosynthesis necessitates the CO2 that the plant absorbs from the atmosphere.In essence, the plant requires the carbon in the CO2 to make the components of glucose. RubP (ribulose biphosphate), a molecule with five carbons, and a molecule of carbon dioxide are combined by an enzyme called ruBisCo in the stroma. As a result, a six-carbon molecule is produced, which is then split into two three-carbon molecules (3-phosphoglycerate). The term "carbon fixation" refers to this phase of the light-independent processes.Then the light-dependent processes' energy carriers start to contribute. By adding a hydrogen atom to each 3-phosphoglycerate, ATP and NADPH produce two molecules of the simple sugar G3P. (glyceraldehyde-3-phosphate). In the end, one molecule of glucose is created from these two G3P molecules. Due to the addition of electrons, this phase of the light-independent processes is commonly referred to as reduction (or decreasing the sugar).Although genetic mutations may occur spontaneously in organisms, the incidence of such mutations may be increased by
Although genetic mutations may occur spontaneously in organisms, the incidence of such mutations may be increased by Mutagenic agents.
Mutagenic compounds, commonly referred to as mutagens, are what cause mutations. A mutagen is a substance that increases the frequency at which mutations happen. The process through which a mutagen causes mutations is known as mutagenesis.
The term "mutation" is frequently used to describe an inherited change in DNA structure that does not result via genetic recombination. An organism with one or more mutated genes is referred to as a mutant. A mutation may change a gene's mode of expression, changing the mutant's phenotype from the one it originally assumed. Mutations can be either spontaneous or induced. Using mutation interrogation techniques, only the presence or absence of known DNA sequence changes may be determined. In lab settings, they are used to analyse a particular group of CFTR mutations that make up a CF test panel.
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Describe in one paragraph the importance of proteins and amino acids. (5-8) sentences
Answer:
Proteins are the building blocks of life. Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids.
Explanation:
Your body needs protein to stay healthy and work the way it should. Protein is also a critical part of the processes that fuel your energy and carry oxygen throughout your body in your blood.
Amino acids are required for the synthesis of body protein and other important nitrogen-containing compounds, such as creatine, peptide hormones, and some neurotransmitters. Although allowances are expressed as protein, the biological requirement is for amino acids.
How might the genetic content of these change by the time tetrads have aligned at the metaphase plate during metaphase I of meiosis
Sister chromatids are chromosomal chromatids that are identical to one another. They are normally produced by the DNA molecule of a single chromosome replicating in a semi-conservative manner.
They are therefore "photocopies" of the original parent chromosomes that have been joined at the Centromere. They share the same gene and allele makeup, making them completely identical.
There are, however, slight variations between the two identical sisters due to mutation from replication errors and alterations in the length of telomere repeats.
In metaphase I, tetrads arrange themselves along the metaphase plate whereas homologous pairs orient themselves randomly. During anaphase I, homologous chromosomes separate and centromeres deteriorate.
In telophase I, chromosomes move to opposite poles, and in cytokinesis, the cell splits into two haploid cells.
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What is biodiversity. be more detailed and in your own words
Answer:
Biodiversity refers to the diversity of life on Earth at all stages, from genes to habitats, which may include genetic, geological, and cultural mechanisms that keep life going. Biodiversity encompasses all living things, from humans to bacteria, fungi, and invertebrates, and contains animals that are rare, threatened, or endangered.
Hope this Helped!
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
It's A.
Explanation:
Because owls and hawks have different Pray to catch and different species
Behaviors which sacrifice reproductive success or even survival can
actually increase fitness if they promote the survival and reproduction
of close relatives who share a significant proportion of the same
genes. This is known as
Write any two advantages of transpiration to a plant .Given below is a set of five terms. Rewrite
the terms in logical sequence as directed at the end of the statement.
Stoma, mesophyll cells, xylem, substomatal space, intercellular space (loss of water due to
transpiration)
Answer:
Transpiration:
Losing the water absorbed by the plant through its aerial parts in the form of water vapor to the atmosphere. Water is absorbed by roots from the soil and transported as a liquid to the leaves via the xylem to mesophyll cells, through intercellular spaces, and moving through substomatal space to the stoma. The leaves and aerial parts have small pores that allow water to moves as a vapor.
Advantages:
With the transpiration exchange of gases also takes place.
Excess amount of water removed from the plant body.
Absorbing water and distribution of water among plant body parts
Cooling the exposed aerial parts of the plant to the sun and warm winds.
The osmotic balance of the plant cell is regulated by the process of transpiration.
The logical sequence in order to loss of water due to transpiration is as follows:
xylem, mesophyll cells, intercellular spaces, substomatal space, stoma.
How is fumigant different from pesticides ? Name one natural substance which can be used in place of fumigant
Fumigants are chemicals that are used to kill pests by releasing a gas that penetrates into areas where pests may be hiding. These chemicals are often used to control pests in large, enclosed spaces such as grain storage facilities or ships.
Pesticides, on the other hand, are chemicals that are used to control, repel, or kill pests. Pesticides can be applied in various forms, such as liquids, granules, or sprays, and can be used to control pests on crops, gardens, and other outdoor areas.
One natural substance that can be used in place of a fumigant is thyme. Thyme is a herb that contains a chemical called thymol, which has insecticidal properties. Thymol can be used to control a variety of pests, including mites, insects, and nematodes. It can be applied in various forms, such as a spray or a dust, and is considered to be less toxic and safer to use than synthetic fumigants.
Can someone help please!! ‼️‼️‼️
Answer:23,46 in that order and dominant
Explanation:
Is a silent mutation missense?
A silent mutation occurs when a mutation is not changing any amino acid coded for that codon. so, they are also known as missense mutation.
In general, Nucleotide substitutions may lead to no change in the protein sequence which known as silent mutations. so , we can say that a silent mutation is a mutation that occurs within the DNA sequence, but they do not alter the amino acid sequence. These mutations takes place in an introns, that is spliced before translation.
Hence, example may include Single nucleotide substitutions they are not involved in changing any of the amino acid sequence so termed as silent polymorphisms. Mutation in these base pair will also not change the function of the protein.
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Explain how natural selection could lead to a change in allele frequency leading to a change in the color of the frogs.
Answer:
Due to increasing the survival.
Explanation:
The natural selection causes a change in allele frequency leading to a change in the color of the frogs because the colour of the frog helps it in hiding from predators. The population of that frog specie increases which has the ability to hide from the predators in that environment while on the other hand, the population of frog decreases which can easily be seen by the predator due to its colour so this change in allele frequency will leads to natural selection.
As a result of the cascade of electrons moving down the electron transport chain and leaving the light reactions A) NADP+ is reduced to NADPH. B) NADP+ is oxidized to NADPH. C) NADPH is reduced to NADP D) NADPH is oxidized to NADP to ATP, chloroplasts transform
As a result of the cascade of electrons moving down the electron transport chain and leaving the light reactions NADP+ is reduced to NADPH.
Light-dependent reactions are jargon for certain photochemical processes that occur during photosynthesis, the primary mechanism by which plants obtain energy. The first light-dependent reaction happens in photosystem II (PSII), while the second occurs in photosystem I. (PSI),
PSII absorbs a photon to form a high energy electron, which travels through cytochrome b6f and ultimately to PSI via an electron transport chain. The reduced PSI then absorbs another photon, resulting in a more strongly reducing electron that transforms NADP+ to NADPH. In oxygenic photosynthesis, the first electron donor is water, creating oxygen (O2) as a by-product
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Place the following steps of retail floral processing in order
= Remove plastic sleeves
= Strip foliage and thorns from stems to minimize decay in plant materials
= Place in containers with water and floral preservatives at room temperature for at least one hour
= Cut stems to allow for water uptake
= Place flowers in cooler
= Open boxes upon arrival
(PUT IN ORDER!!!)
Answer:
B
Explanation:
The process of retail floral processing is important to preserve flower quality.
What is retail floral processing?Retail floral processing refers to the process of preparing and arranging flowers for retailing in shops.
Retail floral processing involves the following steps:
Cut stems to allow for water uptakeStrip foliage and thorns from stems to minimize decay in plant materialsPlace in containers with water and floral preservatives at room temperature for at least one hourPlace flowers in coolerRemove plastic sleevesOpen boxes upon arrivalTherefore, retail floral processing is important to preserve flower quality.
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If a classification, such that used to identify insects or rocks, is used in a scientific context, it is most often called a(n) ________
Taxonomy is a classification, such that used to identify insects or rocks, is used in a scientific context .
Studying living things including animals, plants, microorganisms, and people in order to categorise them and increase our understanding of them is known as taxonomy. For instance, although from some views humans and whales are separate animals, both are classified as mammals and share a common ancestor.
Taxonomy is the approach and guiding principles of systematic botany and zoology. It organises different plant and animal species into hierarchies of superior and inferior groupings. In the science of taxonomy, all living things, including plants, are named, described, and categorised. Classification is based on variances in behaviour, genetic makeup, and biochemistry. The steps of taxonomy are characterization, identification, and categorization.
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Can someone help me please (this is due in 1 minute!!!)
Answer: B and D not sure on the last one
Explanation:
Which of the following best represents the amino acid sequence found in normal adults with the HBB gene?
- His, Gly, Asp, Gly, Gin, Leu. Leu
- Val, His, Leu, Thr, Pro, Glu, Glu
- Val, Gly, Asp. Thr, Pro, Glu, Glu
- Leu, Glu, Asp, Gly, Gin, Leu, Leu
The sequence 'Val, His, Leu, Thr, Pro, Glu, Glu' best represents the amino acid sequence found in normal adults with the HBB gene.
What is a mutation?A mutation is any alteration in the genetic material of an organism, which can alter the protein that is commonly synthesized.
A missense mutation is a type of mutation that alters the amino acid sequence during translation.Moreover, the HBB gene is a gene required to produce hemoglobin, which is a fundamental protein to transport oxygen in the blood.In conclusion, the sequence 'Val, His, Leu, Thr, Pro, Glu, Glu' best represents the amino acid sequence found in normal adults with the HBB gene.
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HELPP!!!
According to the definition of Natural Selection, which of these
organisms is likely to survive?
A- An organism that inherited features that they can and cannot use.
B- An organism that will benefit the Consumers.
C- An organism with adaptations best suited for their environment.
D- An organism that has the greatest number of offspring.
According to natural selection the organism most likely to survive is C- An organism with adaptations best suited for their environment.
Natural selection is the process by which certain traits become more or less common in a population over time as a result of the effects of reproduction, migration, and genetic drift on the survival and reproduction of individuals with those traits.
This process can eventually lead to speciation when populations specialize for specific ecological niches over time (microevolution) (the emergence of new species, macroevolution).
The process of natural selection starts with genetic variation within a population. This variation can occur due to mutation, recombination, and genetic drift. Some individuals in the population will have traits that are better suited to their environment, making them more likely to survive and reproduce. These individuals will pass on their advantageous traits to their offspring, who will also have a better chance of survival. Over time, the proportion of individuals with advantageous traits will increase in the population.
When the organism is well adapted to the environment then they can tolerate the environmental extremes to a better extent thus, able to survive and pass onto there gene to next generation. The adaptation help the organism to mold themselves according to the needs of the environment, thus better chances of living.
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Reasons that the population size of an exotic species often grows rapidly when the species is introduced in a new environment include which of the following?
I. The exotic species is resistant to pesticides.
II. There is a large, underutilized food source in the new environment.
III. The exotic species has few natural predators in the new environment.
(A) I only
(B) II only
(C) I and III only
(D) II and III only
(E) I, II, and III
Reasons that the population size of an exotic species often grows rapidly when the species is introduced in a new environment include II) there is a large, underutilized food source in the new environment, III) the exotic species has few natural predators in the new environment. Hence, option D is correct.
The introduction of an exotic species into a new environment can often cause a rapid population growth due to several key factors.
One of these is that there tends to be a large, underutilized food source in the new environment which the exotic species can take advantage of. Another factor is that the exotic species may have few natural predators in the new environment, allowing them to thrive without fear of predation.
As a result, these two factors can lead to a rapid population growth of an exotic species when it is introduced into a new environment.
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What is Mendel's law of segregation What do we called his factors today and where are they located?
The two alleles for a particular gene separate throughout the development of gametes, according to Mendel's law of segregation, leaving just one allele for each gamete. This indicates that just one allele from each parent is passed on to the offspring for a particular gene when the gametes combine at fertilization.
Mendel's factors have come to be known as genes. A gene is a section of DNA that contains the instructions for making a particular protein, which in turn defines a certain trait.
Chromosomes, which are situated in the nucleus of cells, are where genes are found. Each gene in diploid organisms like pea plants has two alleles, one of which is inherited from each parent.
Mendel's law of segregation explains Mendel's observed inheritance of single traits in his pea plants and it is the basis for Mendel's Punnett square, a tool that is widely used today to predict the possible outcomes of genetic crosses.
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What are the factors that influence sex?
An Individual's sexual behavior is influenced by a complex interplay of biological, psychological, social, cultural, relationship, and environmental factors.
There are many factors that can influence an individual's sexual behavior, including:
Biological and hormonal factors, such as age, gender, and reproductive statusPsychological factors, such as personality, mood, and mental healthSocial and cultural factors, such as family values, religion, and cultural normsRelationship factors, such as attachment, trust, and communicationEnvironmental factors, such as access to contraception, education, and socialization on sex, and laws and policies related to sex.It's worth noting that these factors can interact with one another and can change over time, making it difficult to predict an individual's sexual behavior with certainty.
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