Answer:
i belive it is A
Explanation:
i am not at all positive so dont come at me but hopefully this helps
Migration can increase or decrease gene frequencies in populations, resulting in greater genetic variation, which may enhance chances of survival.
What do you mean by genetic variations?Genetic variation is the difference in DNA among individuals or the differences between populations. The multiple sources of genetic variation include mutation and genetic recombination.
Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination).
The genetic diversity has three different sources: mutation, recombination and immigration of genes. Mutation is the driving force of genetic variation and evolution.
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Match the clue with the correct answer
Answer:
1 is rivulets I think or something like that
Plant cells have
It is used for photosynthesis.
es
A.chloroplast
B.nucleus
C.Cytoplasm
D.cell membrane
Answer: A is for sure the answer
Explanation:
Which of the following describes a mutual relationship?
A pack of hyenas hunt together so they can attack larger animals.
Ants drink nectar from an acacia tree and protect the tree from harmful insects.
A flock of seagulls fly together to reduce the amount of air resistance they feel.
A grasshopper and a rabbit eat different types of plants to avoid competition.
Answer:
b
Explanation:
Question 3
As compared to developing countries, developed countries have a
A higher average income, a higher rate of population growth, and produce more waste.
B.
lower average income, a higher rate of population growth, and produce less waste.
С
higher average income, a lower rate of population growth, and produce more waste.
D
lower average income, a lower rate of population growth, and produce less waste.
Answer:
A
Explanation:
A
Which of the following would NOT be an example of Genetic
Engineering?
A.Gene Therapy
B.Natural Selection
C.Genetically Modified Organisms
D.Cloning
Answer:
B. Natural Selection, others are some what related to genetic engineering.
why is the coral reef more important than the ocean ?
Answer:
Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of spec
Hope it helps!!!
Dr. Kettlewell predicted that clean forests would have___________ colored moths, and polluted forests would have ____________ colored moths.
Moth type: Peppered moths.
Answer:
Dr. Kettlebell predicted that clean forests would have light peppered colored moths, and polluted forest would have dark peppered colored moths.
Explanation:
Kettlewell thought that if natural selection caused the change in moth population.
Dark moths resting on light trees were more likely to be eaten by birds then light moths.
Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
Role of natural selection:At the time when Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
So here the doctor think that the natural selection leads the change in the moth population. Also, the dark moth should be rested on the light trees that eaten by the birds as compared to the light moth.
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A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk. What might be a risk of using this technology to produce milk?
A.
Use of the GAH may increase the availability of milk.
B.
Use of the GAH may increase the amount of hormones in the milk.
C.
Use of the GAH may provide extra milk to feed the poor.
D.
Use of the GAH may allow the farmer to reduce milk prices.
Answer:
B
Explanation:
A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk, and the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.
What is a genetically altered hormone(GAH)?The GAHs that are used in dairy farming can result in an increase in the levels of hormones such as insulin-like growth factor 1 (IGF-1) in the milk, and these hormones can be harmful to human health and are also associated with an increased risk of certain cancers, such as breast cancer and In addition to concerns about the health effects of GAHs, there are also environmental concerns. The increased milk production resulting from GAH use can lead to overproduction, and animals get harmed by these genetically altered hormones.
Hence, the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.
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What is produced by a plant as a result of photosynthesis?
Answer:
I think its glucose
Explanation:
Answer:
glucose
Explanation:
Cells use carbon dioxide and energy from the sun to make sugar molecules and oxygen.
Hi I’m a 13 year old boy who’s underweight and short I am 4 foot 5 and 73 pounds how many calories should I eat to gain atleast 0.25 pounds of lean muscle mass a week
Answer:
i think your fine if you love your body then your good no need to change
Explanation:
What makes two isotopes of the same element different from each other?
A. the electric charge of the atom
B. the number of electrons in the atom
c. the number of protons in the atomized nucleus
D. the number of neutrons in the atomic nucleus
Answer:
An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
Explanation:
pretty sure its D
A single elephant is an example of a(n)
Answer: organism
Explanation:
An organism because that means a single living thing.
It wouldn't be a biome because that is a certain place for example a forest, the desert etc.
It wouldn't be a population because that is more than one and we just want one elephant.
And it wouldn't be a community because that is still more than one.
Hope this helps :)
Answer:
population
Explanation:
well it's population because population that is a an example of a n
Explain how cell division allows changes in the DNA of a zygote to be inherited by future generations
Answer:
Explanation:
When cell divides, the DNA will replicate in the parent cell or make copies of itself and this will make the chromatics to split or divide in order to create a new cell or daughter cell which contain the exact same DNA. The daughter cell then pass these DNA to subsequent generations, when it also undergo cell division and the dna is been replicated
How do the different types of mutations affect the amino acid sequence of a polypeptide?
Answer:
the mutation changes one codon for an amino acid into another codon for that same amino acid. ... Silent substitutions never alter the amino acid sequence of the polypeptide chain. The severity of the effect of missense and nonsense mutations on the polypeptide will differ on a case-by-case basis.
3. How do genes
support the
evidence for
evolution?
The DNA sequence of gene molecules show similarities and differences which can be used to determine species' relatedness.
What is the Wavelength definition?
Read comment below
Answer:
PHYSICS
the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
"a range of wavelengths"
2.
a person's ideas and way of thinking, especially as it affects their ability to communicate with others.
"when we met we hit it off immediately—we're on the same wavelength"
If water is being extracted from an underground aquifer at a lower rate than precipitation is replenishing the aquifer, then the aquifer will eventually fill beyond
capacity.
True
False
Answer:
True
Explanation:
If precipitation occurs more frequently and it precipitates more than what is being extracted, it will eventually fill beyond capacity.
Where do most volcanoes form?
A. Far from the ocean
B. In the inner core
C. In the middle of a plate
O D. On the coast
SUBMIT
Answer:
c. In the middle of a plate
Explanation:
When the plates move they form a volcanoe.
A student graphed distance versus time for an object that moves 14 m every 2 seconds. What is the slope of the ling on the graph. Please explain!
Answer:
A slope of 7, representing a speed 7 m/s.
Explanation:
Speed is defined as the distance traveled over time. Mathematically, it's calculated with the equation:
[tex]speed = \frac{distance}{time}[/tex]
Slope of a graph is the rate at which the y and x axis change together, the "rise over the run." Slope can be simply calculated using this equation:
[tex]slope = \frac{x_{2} - x_{1}}{y_{2} - y_{1}}[/tex]
Therefore, when graphing distance versus time, the change in distance is divided by the change in time to find the slope. This is the same as speed.
How does longitudinal binary fission differ from other forms of binary fission?
A. It creates four daughter cells instead of two.
B. It creates daughter cells that are mirror images of each other.
C. It only occurs in amoebas and paramecium.
D. Daughter cells are created, but over a longer period of time
Viruses are often confused with living things. This is because
Viruses are composed of proteins and genetic material; they maintain
homeostasis
Viruses are composed of proteins and genetic material; they possess the ability
to produce proteins
O Viruses are composed of proteins and genetic material; they possess a
metabolism and ability to produce proteins
Viruses are composed of proteins and genetic material; and may be classified
(sorted) by their amino acid sequences
Answer:
*
Explanation:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea
is it a physical or chemical change when the paper is torn ?and support
Explanations:
Physical change: Physical change is like when the appearance of an object or whatever is changed, and doesn't look much different. Not in a completely new unrecognizable form/substance.
Chemical change: Chemical change is when the appearance of an object is fully changed, unrecognizable, and into a new form/substance
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What is the main feature of primary succession
Answer:
Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).
anyone down to be friends? :3
Answer:
sure , me :)
Explanation:
A laboratory experiment requires 250 milliliters of water for boiling. It also requires 100 milliliters ofw
process.
horms the experiment three times, how much total water will the student need? Give your answerin
Answer:
550 milliliters of water is needed.
Explanation:
the student will need 550 milliliters of water for completing the whole experiment. 250 milliliters of water is needed for boiling purpose while on the other hand, 100 milliliters of water is needed for one process which can be repeated three times so the process needs 300 milliliters of water so by combining the 250 milliliters and 300 550 milliliters of water we get 550 milliliters of water for the whole experiment so we can say that the student needs 550 milliliters of water for the experiment.
IS MY FINAL EXAM I NEED HELP!
The base pairs in a DNA strand are held together with hydrogen bonds. In what way would a cell be most affected if these were covalent bonds Instead?
A) The cell would need to make new DNA each time the strand was opened
B) The cell would only be able to open and close the DNA strand when it replicated.
C)The would have to take in and use more energy in order to break the covalent bonds.
D)The cell would need to replace the nitrogenous bases each time the DNA strand opened.d
Answer:
I think C)The would have to take in and use more energy in order to break the covalent bonds.
Explanation:
Since hydrogen bonds are weaker than covalent bonds.
The changing of one rock type into another as a result of heat, pressure, and chemical reactions is sedimentation.
true or false
Based on your hypothesis, which population(s) would be hurt if bears were added?
Answer:
The correct answer would be - plants, and small animals like moose, rodents, deer and others as bears are omnivorous animals.
Explanation:
In any forest ecosystem, mostly in the forest ecosystem, beers depend on various kinds of animals and plants for their nutrition and energy. They depend on plants that are rich in berries, fruits, and flesh roots. Beers also eat small animals such as rodents, fishes, and hoofed animals.
Therefore, an increase in the number of beers in any ecosystem will lead to a decrease in the population of these organisms and their population including plants.
DNA evidence is NOT used in court cases to
(A) identify and confirm genetic diseases.
(B) identify and confirm criminal suspects.
(C) determine paternity of individuals.
(D) free wrongfully convicted individuals.
DNA profiling is a forensic technique in criminal investigations, comparing criminal suspects' profiles to DNA evidence so as to assess the likelihood of their involvement in the crime. It is also used in parentage testing, to establish immigration eligibility, and in genealogical and medical research. DNA profiling has also been used in the study of animal and plant populations in the fields of zoology, botany, and agriculture.
Answer: A
Explanation: The majority of diseases are spread by bodily contact, microbes, and items. While it is true that some diseases are passed down through heredity, this fact is not used in court.
Which statement is true about prokaryotic cells?
I NEED HELP ASAP PLEASE
Answer:
A. They contain a single circular DNA molecule.
Explanation: