Image result for The chromosome of a bacterium
The bacterial chromosome is one long, single molecule of double stranded, helical, supercoiled DNA. In most bacteria, the two ends of the double-stranded DNA covalently bond together to form both a physical and genetic circle. ... coli, a bacterium that is 2-3 µm in length, has a chromosome approximately 1400 µm long.Answer:
Explanation:
what part of a virus that contains the instructions for making new viruses
genetic material
active
inactive
vaccines
over-the-counter medications
ability to multiply
Answer:
ability to multiply
Explanation:
the more they multiply the more they can spread and that's how they can get more instructions to make it worse like coronavirus right now you can give it from person to person because the virus knows it can multiply and transfer over to another human being for germs or touch
Why is it difficult to find the fish named after former president Barack Obama
¿Qué de la siguiente es la mejor explicada por la comprensión de que la
Tierra gira sobre su eje una vez cada día? necesito ayudaaa
Answer:
sí, la Tierra gira sobre su eje una vez al día
Explanation:
..?
A group of biologists working in Africa observed that some of the Acacia trees growing in their study plots had clearings around them, so that no other vegetation grew within a few meters around each tree. These trees were also covered with ants. The researchers hypothesized that the ants must have cleared the vegetation around each tree. To test this, the researchers decided to remove the ants from some of the trees by spraying with an insecticide and see if vegetation grow in the clearings with the ants gone. They located 100 Acacia trees with clearings and ants present, and sprayed half of them with insecticide. The trees tended to exist in two general habitats: the first habitat was much higher in elevation and was moisture, cooler, and had more wind exposure than the second habitat. Because the insecticide spray would have drifted in the windy conditions of the higher elevation habitat, the researchers only sprayed trees in the low elevation habitat. They visited their research location once a month for two years to record whether vegetation re-grew in the clearings. Which element of experimental design is missing or flawed in this experiment
Answer:
The project showed no control over the confounding variable.
Explanation:
The confounding variable are variables that can influence the dependent variables and that were not established by the researchers. These variables exist naturally in the experiment and are able to alter the result of the experiment in a very intense way.
The dependent variable, in the case presented in the question above, is the proliferation of vegetation around the Acacia plants, while the independent variable is the amount of ants present in the environment. As we can see these two variables are being controlled by the researchers, however, the confounding variables such as soil fertility, water availability, sunlight intensity, wind intensity, are not being controlled and this can severely damage the experiment.
The element of experimental design that is missing or flawed is that the experiment did not control any confounding variable.
CONFOUNDING VARIABLE:A confounding variable in an experiment is a variable that can influence the outcome of the dependent and independent variables.
In this experiment, the dependent variable is case the proliferation of vegetation around the Acacia plants, while the independent variable is the amount of ants present in the environment.
In order to effectively observe the effect of the independent variable on the dependent variable, the confounding variables that must be kept constant or controlled include:
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A. The boiling point of the water is 100°C. Where are 100 degrees Celsius?
Located
On the thermometer on the right?
HELP ME, PLEASE!!!
A. O ponto de ebulição da água é de 100°C. Onde estão 100 graus Celsius
localizados
no termômetro à direita?
ME AJUDEM POR FAVOR!!!
Which of the following refers to the diversity of available genes within a population?
A)
demographics
B)
genetic variety
C)
gene pool
D)
population distribution
E)
tolerance range
If a person's thyroid gland is removed surgically and hormone supplements
are not taken, the person will probably lack energy, feel cold, and gain weight.
a) true
b) false
Which of the following is not an example of income?
answer-food
Answer:
food
Explanation:
In which of the following scenarios would evolution by natural selection take place? (1 point)
O Microorganisms reproduce asexually, producing identical offspring
O Corn is genetically modified and cloned to make identical crops
O Penguins reproduce sexually, producing offspring that look different from one another
O A banana tree branch is planted, producing a clone of the parent tree
Evolution by Natural selection occurs when the offspring of genotypes are produced in response to the environment. Hence the correct option is C Penguins reproduce, offspring that look different from one another.
Evolution by Natural SelectionCharles Darwin and Alfred Russel Wallace developed the theory of Evolution by Natural Selection. For evolution by natural selection take place, Darwin described four essential conditions, these are:
Trait selection must be variable in the populationThe trait must be heritableThe struggle of existenceThe organism which fits to its environment.As per the question, penguins produced offspring that look different from another, this must be because of the evolution by Natural selection. Hence the correct option is C.
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Which factors that affect personal health are the most easily controlled?
a.
genetic
b.
environmental
c.
lifestyle
d.
global
Answer:
c. lifestyle
Explanation:
There are many things that can affect a person's health but not all can be controlled. For example, genetics are what people are born with and cannot be changed. Additionally, global and environmental situations can change but it takes an entire community; so, one individual cannot change these factors. However, one person can change their own lifestyle, assuming they have the willpower.
What do lymph and blood have in common? AThey're both part of the lymphatic system BThey both transport nutrients to cells throughout the body They're both purified by lymph nodes They're composed largely of blood plasma
Answer:
They're composed largely of blood plasma
Explanation:
Answer true or false to the following statements. Use the graphic on the
back to determine the answers.
1. ______ Dogs belong to the order Felidae.
2. ______ A fox belongs to the phylum Arthropoda.
3. ______ Snakes belong to the phylum Reptilia.
4. ______ Lions belong to the class Mammalia.
5. ______ All arthropods belong to the Class Insecta.
6. ______ All rodents belong to the phylum Chordata.
7. ______ All amphibians belong to the class Reptilia.
8. _______ All primates are mammals.
9. _______ The class mammalia includes dogs, cats and rats.
10. ______ A lion belongs to the genus Felis.
11. ______ All mammals are primates.
12. ______ Insects and lobsters are arthropods
Classification is crucial as it allows grouping anything into specific categories.
The taxonomic hierarchy of classification is,
speciesgenusfamilyorderclassphylumkingdomExplanation:
Dogs belong to the order Felidae - FALSE
Dogs belong to the order Carnivora.
A fox belongs to the phylum Arthropoda - FALSEFox belongs to the phylum Chordata
Snakes belong to the phylum Reptilia - FALSESnakes belong to the phylum Chordata and class Reptilia
Lions belong to the class Mammalia - TRUE All arthropods belong to the Class Insecta - FALSEArthropods are invertebrate animals with an exoskeleton, segmented body, and jointed appendages. Although most of the arthropods are insects there are some exceptions like King crabs, Lobster, and Shrimp.
All rodents belong to the phylum Chordata - TRUE All amphibians belong to the class Reptilia - FALSEAmphibians have their class called amphibia and the class reptilia include a different class of organisms called reptiles.
All primates are mammals -TRUEThe class Mammalia includes dogs, cats, and rats -TRUEA lion belongs to the genus Felis - FALSELion belongs to the genus Panthera
All mammals are primates - FALSEA Primate is a placental animal that is characterized by having distinguished hands and feet and a well-developed brain. Examples are Apes and humans.
Whereas a mammal is a warm-blooded vertebrate animal. They include humans, lions, apes, dogs, etc.
Hence all primates are mammals but all mammals are not primates.
Insects and lobsters are arthropods - TRUEMatch each of the "4Rs" to the statement that best describes it.
Answer:
47
Explanation:
Yes it is 690.00 hoepnthsi hekls
How is the structure of nucleotide related to the structure of the DNA molecule
Explanation:
DNA is made up of nucleotides. And each nucleotide consists of phosphate, a sugar group and a nitrogen base. Nucleotides are attached to form two long strands that form a structure called a double helix.
You are hired by Murphey Farms to decrease the backfat in their hogs. The current hog population has a mean backfat content of 20.2mm. You selected the hogs with the smallest amount of backfat, mated them and obtained the progeny generation. The selected hogs had a mean backfat content of 9.5mm. You know that the heritability for percent backfat in hogs is 0.47.
1. What is the selection differential? Round your values properly to 2 decimal digits.
2. What is the expected response to selection? Round your values properly to 2 decimal digits.
3. What is the expected mean of the progeny generation? Round your values properly to 2 decimal digits.
Answer:
SD = -10.7 R = -5.3X₁ = 14.9 ≅ 15mmExplanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.
Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.
The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,
SD = Xs - X₀
Heritability in the strict sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.
R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
• You are decreasing the backfat in the hogs.
• The hog population mean backfat content = 20.2mm → X₀
• The selected hogs had a mean backfat content of 9.5mm → Xs
• Heritability is 0.47 → h²
According to what we sow previously, we need to find out the value of X₁, which reflects how tall the new generation of corn will grow.
• We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁
X₁ = R + X₀
We already know that X₀ = 20.2mm
Now we need to calculate R.
• R = h²SD
We know that h² = 0.47,
Now we need to calculate SD
• SD = Xs - X₀
Xs = 9.5mm → Parentals media height
X₀ = 20.2mm → Population media Height
SD = Xs - X₀
SD = 9.5 - 20.2
SD = -10.7
Knowing this, we can calculate R
R = h²SD
h² = 0.47 SD = -10.7R = 0.47 x -10.72
R = -5.3
Finally, once we know the R-value we can calculate the X₁ value
X₁ = R + X₀
X₁ = -5.3 + 20.2
X₁ = 14.9 ≅ 15mm
explain how energy carried by a light and sound wave with those properties
The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.While sound waves & light waves both travel as waves and are manifestations of energy, they differ significantly in important ways.Light and sound travel at very different rates.
How are the energies of sound and light similar?Both light and sound energy travel as waves, which is how they are comparable to one another.They have such a wavelength, amplitude, and frequency, to put it another way.
How do light & sound waves connect to energy?The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.
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1. Draw Conclusions Which petri dish showed the greatest amount of growth after one
Week? Why? NO LINKS OR MESSING AROUND PLEASE OR REPORTED INSTANTLY⚠
Answer:
i think its the first one because it has more moist environment checked after a week
Explanation:
i hope this is what u needed ;)
Which cell structure is represented by the seed in the center of the avocado?
A. Nucleus
B. Cell membrane
C. Cell wall
D. Cytoplasm
Answer:
A
Explanation:
Answer:
A. Nucleus
Explanation:
The avocado seed is a hard, massive core in the center of the fruit, just like the nucleus in a cell.
HELP LIMITED TIME!!!!!!!!!
Solar, wind, wave, and nuclear energy are all ways of producing
energy without producing the negative outcome of:
Select one:
1, Decreased oxygen levels
2, Habitat loss
3, Increased greenhouse gas emissions
4, Non-native species
Answer:
3. Increased greenhouse gas emissions
Explanation:
Solar, wind, wave, and nuclear energy are all ways of producing energy without producing the negative outcome of increased greenhouse gas emissions. Greenhouse gases, such as carbon dioxide and methane, are released into the atmosphere through the burning of fossil fuels, such as coal, oil, and natural gas. These gases trap heat in the atmosphere and contribute to global warming and climate change. Solar, wind, wave, and nuclear energy, on the other hand, are forms of renewable energy that do not produce greenhouse gases when they are generated. They are considered more environmentally friendly alternatives to fossil fuels, and their use can help to reduce greenhouse gas emissions and mitigate the impacts of climate change.
what anatomy and physiology
Answer:
Explanation:
Anatomy and physiology are two of the most basic terms and areas of study in the life sciences. Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.
which population dispersal pattern is the most common?
A. Clumped
B. Random
Answer:
A. Clumped
Explanation:
There are 3 common distribution patterns, namely clustered, evenly distributed, and random. The characteristics of the clustering distribution pattern are based on an individual's instinct to gather near their food source
[tex] \blue {Hashibira}[/tex] [tex] \\ [/tex] [tex] \blue {Inosuke}[/tex]
please help me I don't really understand
Answer:
.
Explanation:
What is shortest to longest growing season for tundra, desert, rainforest, deciduous forest
Answer:
Desert
Explanation:
I hope this is it
This is an example Dinoflagellates can perform photo and provide
The relationship between Dinoflagellates and coral is an example of a mutualistic relationship.
Mutualistic relationships are interactions between two different species in which both species benefit. In the example you provided, the dinoflagellates perform photosynthesis and provide energy to themselves and the coral, while the coral provides protection for the dinoflagellates. This is a mutualistic relationship as both species benefit from the interaction.
B. dependent relationship, C. parasitic relationship, and D. commensalism relationship are all different types of interactions.
-A dependent relationship is one in which one species is entirely dependent on the other for survival,
-A parasitic relationship is one in which one species (the parasite) benefits at the expense of the other species (the host),
-A commensalism relationship is one in which one species benefits from the interaction while the other species is neither helped nor harmed.
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The complete question is:
Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provides protection to the dinoflagellates. This is an example of a
A. mutualistic relationship.
B. dependent relationship.
C. parasitic relationship.
D. commensalism relationship.
Dinoflagellates are a diverse group of marine microorganisms that possess the ability to perform photosynthesis and produce oxygen.
What are dinoflagellates?Dinoflagellates are a diverse group of aquatic microorganisms that belong to the kingdom Protista. They are characterized by their distinctive whip-like flagella, which allow them to move through the water. Dinoflagellates are found in both marine and freshwater environments, and they can be found in a wide range of habitats, from the open ocean to estuaries, lagoons, and even in soil. They are a type of phytoplankton and play a critical role in the oceanic food web and global biogeochemical cycles.
Some dinoflagellates are photosynthetic, meaning they can produce their own food through the process of photosynthesis, and can produce oxygen. They are an important primary producer of marine food webs and support the entire marine ecosystem. However, some dinoflagellates produce toxins that can be harmful to marine life, as well as humans and can cause blooms or "red tide" phenomenon.
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Many bony fish species have a swim bladder: an air-filled organ that can inflate to help them float up in water or deflate to help them sink down. What can you infer about a species that lacks this organ?
A species that lack a swim bladder, a fish without buoyancy issues will often stay still and erect in the water.
What is a swim bladder?You will notice excessive fin movement if your fish are trying to keep upright or are swimming sideways or upside down as they attempt to float correctly.
Thus, we may draw the conclusion that the swim bladder's air capacity rises as the fish dives deeper.
You might be shocked to learn that the majority of bony fishes have a swim bladder, a particular organ that helps them with that.
Therefore, this is a gas-filled sac with a thin wall that is found inside a fish's body.
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If you did the experiment with both plant and animal cells, how do you think their DNA would compare?
Answer:
The correct answer is - the DNA from both cell types will look just the same. The structure of DNA is consistent among most living things, even in animals and plants.
Explanation:
In plant and animal cells have various differences but at the genetic level or chemical level, the DNA of both cells are structurally and functionally similar to one another. The DNA of both cell-type have a double helix and ladder-like genetic molecule.
Both of these cells have double-stranded DNA molecules present in the nucleus. It is also found that the some of the proteins are produce by both plants and animals.
we think of our muscular system as the system that helps move around it also functions on an interval level by helping food movement in the ______ and ________ both parts of the digestive system
Answer: it also functions on an interval by helping food movement in the stomach and small intestines.
Explanation:
Both parts of the digestive system .
How would decreasing the amount of water in blood affect blood pressure
Answer:
Blood pressure would decrease.
Explanation:
If you don't drink enough water it's bad for your body since water is a source of living, and if you decrease the amount of water in your blood the blood pressure would decrease.
The process that shows how the plant grow lives and dies is called
Answer:
morphogenesis
Explanation:
The developmental process is known as morphogenesis. This process that follows a plant throughout its entire life and shows how the plant shapes itself through the development of cells, tissues, and organs throughout its life. These developments are dependent on many factors such as the genetics of the plant as well as the environmental conditions that the plant is exposed to. All of this affects the type of organs that the plant develops such as leaves, flowers, and fruits.
A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity. Explain the three levels of biodiversity and the concerns associated with loss of diversity at each level.
B) Species and genetic diversity can be very beneficial to humans. Describe three ecosystem services that nature provides to humans.
Answer:
Biodiversity or Biological diversity is a term that describes the variety of living beings on earth. It is described as degree of variation of life. Biological diversity encompasses microorganism, plants, animals and ecosystems such as coral reefs, forests, rainforests, deserts etc.
-In biodiversity, each species, no matter how big or small has an important role to play in ecosystem. It represents the wealth of biological resources available to us. It’s all about the sustaining the natural area made up of community of plants, animals, and other living things that is begin reduced at a steady rate as we plan human activities that is being reduced by habitat destruction.
Explanation:
A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity.
B) Ecosystem services provided by biodiversity include pollination, pest control, and nutrient cycling.
A) The three levels of biodiversity are genetic diversity, species diversity, and ecosystem diversity. Genetic diversity refers to the variation in genes within a species, which allows populations to adapt and survive in changing environments. Concerns associated with the loss of genetic diversity include reduced adaptability to environmental changes and increased vulnerability to diseases.
Species diversity refers to the variety of different species within an ecosystem. Loss of species diversity can disrupt ecological balance, impact food webs, and lead to the extinction of keystone species. It can also result in the loss of potential sources for medicines, agricultural crops, and other valuable resources.
Ecosystem diversity refers to the variety of different ecosystems in a region. Loss of ecosystem diversity can result in habitat loss, fragmentation, and degradation, leading to the decline or loss of specialized species adapted to specific habitats. It can also impact the provision of ecosystem services, such as water purification, climate regulation, and nutrient cycling.
B) Species and genetic diversity provide several ecosystem services to humans. One example is pollination, where diverse species of pollinators, such as bees, butterflies, and birds, ensure the reproduction of flowering plants and agricultural crops. Another ecosystem service is pest control, where diverse predator species help regulate populations of agricultural pests.
Ecosystems also provide the service of nutrient cycling, where diverse decomposers, such as fungi and bacteria, break down organic matter and recycle nutrients back into the soil. This process is crucial for maintaining soil fertility and supporting plant growth. Lastly, diverse ecosystems contribute to climate regulation by absorbing and storing carbon dioxide, a greenhouse gas that contributes to climate change.
Overall, species and genetic diversity support the functioning and resilience of ecosystems, benefiting human well-being by providing essential services like pollination, pest control, nutrient cycling, and climate regulation. Protecting and conserving biodiversity is essential for maintaining these services and ensuring a sustainable future.
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