Identical twins are rare because they are generated when a fertilized egg is divided into two zygotes and thus generate two different organisms having genetically identical material. Genes are passed on normally in humans due to the inheritance from parents to offspring, they (genes) are passed on in identical twins as copies in the egg cell.
What is the proportion of identical twins in nature?The proportion of identical twins in nature is relatively low in the order of 1 to 250, which inherit the same genes contained in homologous pairs of chromosomes, while fraternal twins denote the process of fertilization of two separate eggs to form different organisms. These genes generate different proteins that will lead to different traits.
Therefore, with this data, we can see that the proportion of identical twins in nature is low because the division of the egg cell after fertilization cell is a rare process.
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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
5. Kimberly draws the food web shown. A reduction in the population of which organism
would reduce the food sources available to all of the other organisms? (1 point)
Answer: Krill
Explanation:
Tha basis for energy of the animals is krill - so reduction in its population would influence all organisms.
Why do cancer cells divide and multiple uncontrollably?
Answer:
Most cancer-causing DNA changes occur in sections of DNA called genes. These changes are also called genetic changes. A DNA change can cause genes involved in normal cell growth to become oncogenes. Unlike normal genes, oncogenes cannot be turned off, so they cause uncontrolled cell growth.
Please help i need the answers asap
The independent variable is temperature
The dependent variable is height of the plants
Three constant variables are; sunlight, nutrients and humidity
A line graph is more suitable since we have two variables.
What is the variable?We know that the term variable has to do with the kind of value that changes from time to time. In an experiment, there are three main kinds of variables;
1) the independent variable - The value of this would be altered throughout the experiment
2) The dependent variable - The value of this would only be changed when we change the dependent variable
3) The controlled variable - This would remain the same throughout the experiment
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As a result of sexual reproduction, an organism can pass a gene mutation to its offspring if the mutation occurs in
An organism can pass a gene mutation to its offspring if the mutation occurs in gamete as a result of sexual reproduction .
A mutation can be transmitted down to an organism's progeny if it happens in a germ-line cell (a cell that will develop into gametes, such as egg or sperm). This implies that the mutation will be present in each and every cell of the growing embryo. A parent's genetic mutation may be carried on to their child through their egg or sperm.
Throughout a human's life, these inherited mutations are prevalent in almost every cell of their body. Cystic fibrosis, haemophilia, and sickle cell disease are examples of hereditary mutations. Large-scale evolution only takes into account mutations that can be passed on to future generations. These are known as germ line mutations and they happen in reproductive cells such as eggs and sperm. Environmental factors contribute to mutations.
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A heterozygous purple flowered plants is crossed with one that is while.
Explanation:
A = Purple
a = white
Aa/AA - purple
aa - white
Help me with this question please.
Answer:
C
Explanation:
Hydro means water, water is a renewable source. hope this helps!
5 point
Gregor Mendel discovered the principals of heredity and that genes could
be:
-Strong or weak
-Dominant or recessive
-made dormant or active
Answer:
-Dominant or recessive
Explanation:
Genes can either be dominant or recessive
dominant genes will dominate recessive genes if the phenotype is heterozygous, i.e. the genes have 1 dominant and 1 recessive
Match the following. 1 . slime mold An organism that only has one cell for its body 2 . organismal theory The basic unit of life according to the cell theory 3 . life cycle The internal spherical structure in a cell which serves as the central control 4 . cell theory Serves to give strength and rigidity to the plant cell 5 . nucleus The living substance of a cell, excluding the nucleus 6 . cytoplasm The outer layer of cells of the stems, roots, and leaves of plants 7 . cell The stages of a plant or animal's life 8 . acellular organism Fluid filled sacs within the cytoplasm of a cell which are bound by a membrane 9 . epidermis The semipermeable membrane surrounding the cell 10 . unicellular organism An organism not divided into cells 11 . matter That which occupies space and has mass 12 . cell wall They are thought to make r-RNA to construct the ribosomes 13 . plasma membrane A functional plant or animal 14 . organism The basic unit of life is the organism itself 15 . vacuole A type of protist which has a stage in its life cycle when it is not divided into cells 16 . nucleolus The basic unit of life is the cell
Answer:
There should be a image
Why does an increase in number of cells cause growth?
Growth in all organisms occurs through the process of mitotic cell division. Cell division is the process of dividing old cells to form new cells, thereby increasing the number of cells needed for growth and various other activities in the body. It is a major and regular process essential to all life.
During mitosis, cells divide to form two identical daughter cells. All cells undergo mitosis and in this way the number of cells in the body increases and the organism grows.
Body tissue grows by increasing the number of cells that make it up. Cells in many tissues of the body divide and grow very rapidly into adulthood. As we grow, many cells mature and specialize in specific tasks in the body.
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Question 3
What level of organization include, coral, fish, eels, and the water in a tropical weather system near the Amazon Rainforest?
A Biome
B Biosphere
C Community
D) Population
The level of the organization includes coral, fish, eels, and the water in a tropical weather system near the Amazon Rainforest is biome. The correct option is A.
What is a biome?While aquatic biomes encompass both oceanic and freshwater biomes, terrestrial biomes are based on land. A place is categorized as a biome based on the species that call it home.
Scientists can identify a biome by defining the temperature range, soil type, and amounts of light and water that are specific to that location and create niches for particular species.
The Conifer Forest is another name for them. The evergreen trees with conical shapes are part of the vegetation. The taiga biome experiences moderate precipitation. Short, rainy summers alternate with long, chilly winters. There is a lot of snowfall in the winter and a lot of rainfall in the summer.
Therefore, the correct option is A, Biome.
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How can a cup of water decrease in temperature? please answer my question in a scientific method, the questions will be below.
Step 1: Observation
Step 2: Research:
Step 3: Hypothesis:
Step 4: Experiment – explain the experiment that you would perform
Step 4a- The control variable
Step 4b- The dependent variable
Step 4c- The independent variable
Step 5- What do you predict the conclusion to be?
The first step for this experiment is observation where it is found that a cup of water decreases in temperature. The rest of the steps are described in the explanation part.
What is a Scientific method?A scientific method may be characterized as the process of objectively establishing facts through testing and experimentation. The basic process involves making an observation, forming a hypothesis, making a prediction, conducting an experiment, and finally analyzing the results.
The second step is research in which a cup of water is placed at different temperatures where it can easily change its state from liquid to solid. The hypothesis governs that the amount of water in a cup may lower or decreases when it is exposed to several temperatures.
The experiment is performed on the basis of certain evidence and assumptions in order to predict some conclusion. The control variable is the influence of temperature. The dependent variable is the amount of water and the independent variable is the exposure to temperature.
Therefore, it is concluded that a cup of water decreases in temperature.
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PLS HELP 20 PTS What other factors might cause individuals in this antelope herd to emigrate
Answer:
When you think about it - this is a similar case that happens in our species as well. You have groups of people who want to emigrate to different countries in hope for better grassland.
They emigrate but are immigrants from the perspective of the grassland where they will be.
The other factors that might cause individuals in this antelope herd to emigrate are immigration, increasing birth rate, and decreasing death rate.
What is emigration?When an animal emigrates, it's because its habitat is no longer ideal for it and it needs to move to a new location with a better habitat. Animals that migrate or emigrate never go back to the place they were originally from.
This is a similar situation to one that occurs in our species. There are various groups of people who want to immigrate to various nations in search of better grasslands. From the perspective of the grassland where they will be, they migrate but are immigrants.
Therefore, Immigration, a rising birth rate, and a declining death rate are some additional factors that could result in members of this antelope herd leaving the group.
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_________ refers to a pea plant that is either homozygous dominant or homozygous recessive for a particular trait.
Answer:
A purebred.
Explanation:
A purebred is an animal or plant that carries two identical alleles for a particular gene or trait. This means that if the pea plant is homozygous dominant (has two of the same dominant alleles), or homozygous recessive (has two of the same recessive alleles), it is considered a purebred. A purebred always expresses only one form of the trait.
HELP PLEASE!!!! growing on
With secondary
Primary succession begins with plants like
succession is already present.
lichens...bare rock...soil
moss...soil...a habitat
dandelions...bare rock...a habitat
palm trees...soil...an animal
Answer: Is A
Explanation:
Lichens break down rock from there the soil start to create life i don't how to explain it
How can people exercise good and wise Dominion over the process of photosynthesis for God's glory
Wise dominion over the process of photosynthesis can be exercised in such a way that all the people and animals can benefit from it and we can use it correctly.
Photosynthesis is a process that plants and other organisms use to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are formed by the reaction of carbon dioxide and water.
Photosynthesis is performed by the majority of plants, algae, and cyanobacteria; these organisms are known as photoautotrophs. Photosynthesis is responsible for producing and maintaining the oxygen content of the Earth's atmosphere, as well as supplying the majority of the energy required for life on Earth.
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What causes populations to lose genetic diversity due to chance?
Stochastic sampling error (i.e., genetic drift) causes populations to lose genetic diversity due to chance.
Genetic drift is a result of sampling error because individuals are randomly chosen when a population is sampled. A random selection is one in which each member of the population has an equal chance of being chosen.
The random change in allele frequencies caused by stochastic sampling of alleles from the previous generation is known as genetic drift (independent of demographic stochasticity).
The variety of various inherited features within a species is referred to as genetic diversity. There would be many people with a wide range of diverse traits in a species with significant genetic diversity. For a population to adapt to changing surroundings, genetic variety is essential.
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What happens to the light when you look at a green object?
When you look at a green object, the object reflects green light and absorbs other colors of the visible spectrum. The green light is then transmitted to your eye, where it is focused by the lens onto the retina.
The retina contains specialized cells called rods and cones that are sensitive to different wavelengths of light. The cones in the retina are responsible for color vision and are most sensitive to different colors in the visible spectrum, and when the green light reaches the cones, it triggers a neural signal that is sent to the brain, where it is interpreted as the color green. The absorbed light colors are not reflected and are green absorbed by the object, they are not transmitted to green the eye, so they are not perceived by the observer.
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Why are there not large, visible colonies of bacteria like those in the petri dish on the things we use every day?
(please don't write anything randomly or else I will report your account for nonsense)
Answer: most likely because there is constant air flow around us most of the time. It also depends on what materials are around us and the moisture level. For example, most bacteria cannot grow on metals, especially copper because of the way it’s composed.
Explanation:
PLSS HELP ME WITH THIS IMMEDIATELY!!! ILL MARK U BRAINIEST IF U DONT LEAVE A LINK OR GUESS!!
Answer:
C
Explanation:
Flowing water wears away at dirt and rocks
Can someone pls help me the answer options are
A 100 joules
B 10,000 joules
C 1,000 joules
D 10 joules
Answer:
I'm pretty sure it's A?
Explanation:
Multiplied by 1%
Which of the following is an example of one stage in ecological succession?
A. A tree falls over in a forest.
B. Weeds grow in a garden.
C. Fish swim in a pond.
D. A bird lays eggs in a nest.
What food chain is a snail?
Snails are the part of the grazing food chain where they belong to the category of primary consumers.
Food chain is a hierarchical series of energy transfer where one organism feeds upon the lower one to gain energy. There are two main types of food chains: grazing food chain and the detrital food chain. The grazing food chain starts with the autotrophs whereas the grazing food chain begins with the dead and decaying organic matter.
Consumers are the animals that depend on other organisms for their food and energy source. Consumers can be of three types: herbivores, carnivores and omnivores.
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Using a microscope, you observe an amoeba moving toward a food source. This is an example of
A) reproduction.
B) cellular structure.
C) metabolism.
D) growth.
E) responsiveness.
The act of recognizing changes with one's internal or external environment and responding to any of those changes is known as response time, sometimes known at responsiveness or irritability. It consists of sensing a stimulus and responding to it.
What is meant by "responsiveness"?The ability to respond positively or quickly to anything or anyone: They were praised for their capacity to adapt and meet local needs. She doesn't pay much attention to her surroundings.
Why is being responsive so important? It is what?Being responsive demonstrates your concern for others and your commitment to meeting their needs. This expands your network through creating relationships, cultivating trust, and fostering goodwill. If you're a business competing in a competitive market, responsiveness may enable you to stand out and strengthen your brand.
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Please place answers under questions so I know which is which. Thank you! :)
What products are made in light-dependent reactions (photosynthesis)?
What products are made in light-independent reactions (photosynthesis)?
Products: ADP, ATP, NADPH, NADP+, Oxygen, Sugars
The products of the light-dependent reactions are= ATP, NADPH, and O2, and the products of light-independent reactions are= Sugars, ADP, and NADP+.
Photosynthesis has two parts: one is light-dependent and another one is a light-independent reaction (also known as-Calvin cycle). The process is vice versa, where few inputs of the light-dependent reaction are used to make the outputs for the light-independent reaction, and few inputs of the light-independent reaction are used to make the outputs for the light-dependent reaction.
The goal of a light-dependent reaction is to convert light energy into chemical energy. And the location of light-independent reaction is at Chloroplasts—stroma.
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Which blood type can be donated to the largest percentage of individuals?
Answer:
Type O+
Explanation:
what is binomial nomenclature. please help ASAP
binomial nomenclature definition
Explanation:
the system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet.
Answer:
the system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet.
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.
A deep indentation found along the medial plane that separates the right and left cerebral hemispheres is called the
The profound depression that partitions the two cerebral sides of the equator is known as the extraordinary longitudinal crevice. This depression partitions the frontal cortex into left and right parts along the longitudinal or sagittal plane.
It is partitioned into two sides of the equator, to be specific the right cerebral half of the globe and the left cerebral side of the equator. The profound space that isolates the two sides of the equator is known as a longitudinal crevice.
The average surface of the cerebral side of the equator is partitioned into internal and external zones by the cingulate sulcus. The internal zone is named as cingulate gyrus and is consistent with the para-hippocampal gyrus on the tentorial surface through the isthmus (5, 7).
The falx cerebri is a meningeal projection of dura in the cerebrum. It is a sickle-molded overlap of the dura mater situated at the midline between the two cerebral sides of the equator.
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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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