During an earthquake a small group of deer are separated from their herd. A long distance away they find a new population of deer and begin
interbreeding with the new deer. What is this an example of?
A. Genetic Drift
B. Gene Flow
C .Mutation
D. Recombination
Answers
Answer:
B or A i think
Explanation:
Related Questions
Coffee is an example of a
Answers
Answer:
Hey mate.....
Explanation:
Coffee can be an example of Beverage.....
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The coffee, or rather the coffee beans, are crop that can be considered as a luxury crop. The reason why it can be considered as luxury crop is that it is not a crop that is needed for food, or satisfying the basic needs of the humans.
Which is NOT a condition required for allele frequencies to remain the same over time?
a. natural selection
b. random mating
c. very large population
d. absence of mutation
Answers
write two difference between urbanization and sustainable development
Answers
According to the research, the correct answer is that sustainable development covers people's basic needs without harming the ecosystem, while urbanization maximizes the impact on resources, which in turn affects the health of the community and the ecosystem.
What is urbanization?It is the concentration of population and its activities (social, cultural and economic) in rural areas towards the urban zone.
In this sense, it increases consumer demand which directly affects the economic and social factors of sustainability in addition to its impact on the environment, on the other hand sustainable development can be included in seeking sufficient resources for all that reduces environmental impact and promotes modes of consumption and production in accordance with their own territorial, economic and cultural conditions.
Therefore, we can conclude that according to the research, sustainable development tries to meet the needs demanded by the environment, while in an urbanization it generates a great impact on the environment and quality of life.
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explain the Krebs cycle
Answers
Answer:
Explanation:
The Krebs cycle, named after 1953 Nobel Prize winner and physiologist Hans Krebs, is a series of metabolic reactions that take place in the mitochondria of eukaryotic cells. Put more simply, this means that bacteria do not have the cellular machinery for the Krebs cycle, so it limited to plants, animals and fungi.
Mechanical circumstances can lead to dormancy in some seeds. For instance, some seed coats are too thick to allow sufficient ____________ of oxygen or water. However, this type of dormancy may be broken through ____________ , an artificial method where the seed is scratched or dipped in acid to break down its coat. Dormancy can also be broken naturally through ____________ by rocks, or alternate periods of freezing and thawing.
Answers
Mechanical circumstances can lead to dormancy in some seeds.
For instance, some seed coats are too thick to allow sufficient permeation of oxygen or water.
This type of dormancy may be broken through scarification, an artificial method where the seed is scratched or dipped in acid to break down its coat.
Dormancy can also be broken naturally through abrasion by rocks, or alternate periods of freezing and thawing.
Thick seed coats can present a physical barrier that prevents the entry of oxygen and water necessary for germination.
The seeds remain dormant until the conditions become favorable for growth.
Scarification is a technique used to overcome this type of dormancy artificially.
It involves mechanically or chemically breaking down or thinning the seed coat, allowing oxygen and water to penetrate and initiate germination.
Natural methods of breaking dormancy include abrasion caused by rocks or soil particles.
The physical action of these abrasive elements can gradually wear down the seed coat, enabling oxygen and water to reach the embryo.
Alternate periods of freezing and thawing, also known as stratification, can be beneficial for breaking dormancy in certain seeds.
The freezing and thawing cycles cause physical stresses on the seed coat, weakening its structure and facilitating germination.
Mechanical circumstances leading to dormancy in seeds can be addressed through scarification, natural abrasion, or stratification.
These methods help overcome the physical barriers imposed by the seed coat and promote successful germination by allowing the necessary exchange of gases and water.
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Which of the following events occurs in the light reactions of photosynthesis?
NADP+ is produced.
ATP is consumed to yield ADP.
Light is absorbed and funneled to reaction-center chlorophyll a.
Carbon dioxide is fixed in organic molecules.
Answers
option B Light is absorbed and funneled to reaction-center chlorophyll a.
occurs in the light reactions of photosynthesis.
Light energy is converted into chemical energy by light-dependent reactions. The goal of photosynthesis's light-dependent reactions is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then put to use in light-independent reactions.
Light reactions, also referred to as photolysis reactions, convert solar energy into chemical energy in the form of NADPH and ATP. These reactions must occur in the presence of light and in plant chloroplasts.
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If mitochondria originated as prokaryotic symbionts, which characteristics might they share with prokaryotes? Select all that apply.
A.chloroplasts
B.circular DNA
C.nucleus
D.antibiotic s
Answers
If mitochondria originated as prokaryotic symbionts, Circular DNA might they share with prokaryotes, option B is correct.
Mitochondria originated from prokaryotic symbionts, specifically a group of bacteria known as alpha-proteobacteria. As a result, they still retain certain characteristics reminiscent of their prokaryotic ancestors. One such characteristic is the presence of circular DNA. Like prokaryotes, mitochondria possess their own genome in the form of a circular DNA molecule, known as mitochondrial DNA (mtDNA).
This circular DNA structure is distinct from the linear DNA found in the nucleus of eukaryotic cells. The circular nature of mtDNA is a shared feature between mitochondria and prokaryotes, suggesting their evolutionary origins and their ability to replicate independently within the cell, option B is correct.
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Unlike natural selection, genetic drift is based solely on which of the following?
O Migration
O Chance
O Mutations
O Genotype of the individual
Answers
Answer:
Chance
Explanation:
Genetic drift is the sudden disappearance of different genetic traits within a population. Genetic drift occurs most commonly due to accidents or chance scenarios.
How does the harsh weather graph differ from the normal weather graph
Answers
Explanation:
The carrying capacity is lower and there is a greater population decrease during the winter.
I believe that would be the answer you’re looking for.
which steroid hormone(s) would not be produced if you blocked the activity of 5alpha-reductase?
Answers
If you blocked the activity of 5alpha-reductase, the steroid hormone that would not be produced is dihydrotestosterone (DHT).
5alpha-reductase is an enzyme responsible for converting the hormone testosterone into its more potent form, dihydrotestosterone (DHT). By blocking the activity of 5alpha-reductase, the conversion of testosterone to DHT would be inhibited, resulting in a decrease or lack of DHT production.Therefore, steroid hormones that are dependent on DHT for their activity would not be produced, including androgenic hormones such as 5alpha-androstanedione and 5alpha-androstanediol, which are precursors to DHT. Additionally, DHT plays a role in the development of male external genitalia, prostate gland, and male pattern baldness, so inhibition of 5alpha-reductase activity can lead to changes in these structures as well.
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Why is it important for an organism to have high fitness (the ability to survive and make a lot of offspring)?
Answers
Answer:
An organism with high fitness has adaptations that are well suited to their environment allowing them survive and reproduce. An organism with low fitness has characteristics that are not well suited to their environment meaning they almost certainly die without reproducing.
Explanation:
What does asexual and sexual reproduction have in common?
Answers
Require living cells
Produces offspring
Has DNA for genetic information
how do heat built up when Earth first formed?
Answers
The heat was built up from the violent collision of planets in the solar system when Earth first formed.
how do heat build-up when Earth first formed?Because the Earth as we know it is the result of a collision between two planets, a collision that also produced the Moon, the surface of the Earth was extraordinarily hot in the beginning.
While the surface was still extremely warm, the majority of the heat within the very young Earth was swiftly lost to space. The first source of heat is Sun.
Thus, this is how heat was generated during the formation of Earth.
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Why don't the leaves in the baking soda solution continue to produce oxygen in
the dark?
Answers
The plant leaf discs absorb CO2 from a bicarbonate soda or baking soda solution and sinks to the bottom of a bowl of water.
When exposed to ultraviolet light, the discs synthesize oxygen and glucose from carbon dioxide and water.
The oxygen produced by the leaves causes the leaflets to float by forming small bubbles.
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Which best explains how warm air fronts compare to cold air fronts?
A. Warm air fronts cause more rainfall than cold air fronts.
B. Warm air fronts form higher clouds than pld air fronts.
C. Warm air fronts form more cloud cover than cold air fronts.
D. Warm air fronts cause higher temperatures than cold air fronts.
Answers
Warm air fronts cause higher temperatures than cold air fronts best explains the difference between warm air fronts and cold air fronts.
What is warm air fonts?When a warm air mass meets and moves over a cold air mass (a warm front), the warm air rises above the denser, colder air. This rising motion causes the air to expand and cool, which can lead to the formation of clouds and precipitation. However, the warm air that moves in ahead of the front can cause temperatures to increase, leading to warmer weather.
What is precipitation?In contrast, when a cold air mass meets and moves under a warm air mass (a cold front), the denser, colder air pushes the warm air upward, creating a steep boundary. This rising motion can cause the air to cool, leading to the formation of clouds and precipitation. The colder air behind the front typically causes temperatures to drop, leading to cooler weather.
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Which subatomic particle is positively charged?
A. Neutron
B. Ion
C. Proton
D. electron
Answers
Answer:
Proton
Explanation:
Neutron are neutral, ion I am not sure but are not positive, and electron are -.
Answer: Proton
Explanation:
In an atom there exist three types of sub atomic particles
1) Electrons
2) Neutrons
3) Protons
so we know that electrons are negatively charged particles which stays in a finite orbit as per their energy level
Protons are positively charged particles which remains inside the nucleus and they are tightly bound inside it
Neutrons are neutral sub atomic particles which do not have any charge in it.
So we have correct answer as
D) Proton
What causes a shift of the oxyhemoglobin curve to the left? (Select all that apply.)
a.) Increased pH
b.) Chronic disease
c.) Decreased H+ ions
d.) Decreased temperature
e.) Increased in 2,3-DPG
Answers
a,c and d are right options, A shift of the oxyhemoglobin curve to the left means that hemoglobin has a higher affinity for oxygen,
meaning it can bind to oxygen more easily. This shift is caused by factors that increase the pH or decrease the concentration of H+ ions, which makes the hemoglobin molecule less likely to release oxygen
Decreased temperature also shifts the curve to the left by reducing the rate at which oxygen is released from hemoglobin. However, chronic disease and increased levels of 2,3-DPG (an organic molecule that regulates the oxygen affinity of hemoglobin)
can shift the curve to the right, making it more difficult for hemoglobin to bind to oxygen. The factors that cause a shift of the oxyhemoglobin curve to the left are:
a) Increased pH
c) Decreased H+ ions
d) Decreased temperature
These conditions promote increased binding affinity between oxygen and hemoglobin, resulting in the leftward shift of the oxyhemoglobin curve.
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What causes a shift of the oxyhemoglobin curve to the left?
a.) Increased pH
b.) Chronic disease
c.) Decreased H+ ions
d.) Decreased temperature
e.) Increased in 2,3-DPG
place each of the following lymphatic structures in the correct category based on their location.
Answers
Lymphatic structures can be broadly classified into two categories based on their location: primary lymphatic structures (Bone marrow, Thymus) and secondary lymphatic structures (Spleen, MALT).
primary lymphatic organs:Bone marrow: The bone marrow is where all blood cells, including lymphocytes, are made. The bone marrow is where lymphocytes known as B cells develop.
Thymus: T cells, a different kind of lymphocyte, develop there.
Other lymphatic structures:Lymph nodes: Throughout the body, lymph nodes are tiny, bean-shaped organs that filter lymph, the fluid that travels through the lymphatic system. They have immune cells that can identify pathogens and react to them.
Spleen: The spleen is an organ that filters blood and eliminates stale or damaged red blood cells. It is situated in the upper left portion of the abdomen. Moreover, it has immune cells that can fight against viruses.
Located on mucosal surfaces, mucosa-associated lymphoid tissue (MALT) is a kind of lymphatic tissue.
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Place each of the following lymphatic structures in the correct category based on their location.
Bone marrow, Thymus, Spleen, MALT.
Investigator Campbell is in charge of the forensics lab. One of the analysts in the lab ended up with contaminated evidence from the scene of an explosion. Looking through their work area, she sees they have a very small table next to a sink with small nylon bags stored in tight rows at room temperature. What would she advise the analyst to change about their evidence system? The evidence needs to be refrigerated quickly between analyses. The evidence can't be stored in nylon bags at all. The bags can't be kept so close together. They can’t be near the sink—it’s too humid.
Answers
Answer:
The bags can't be kept so close together.
Explanation:
Enamel is the hardest substance in the human body. Justify your answer.
Answers
Enamel is indeed the hardest substance in the human body. It is present in teeth of humans. It covers every tooth and provides the hard layer.
Tooth Enamel is hard glossy substance that is comprised of calcium and phosphate mineral crystals which in return makes our teeth more stronger. Teeth enamel care is extremely important to maintain the oral health of teeth.
Tooth Enamel is one of the major tissue that make up tooth in humans. It covers the top layer of the teeth known as Crown. Calcium hardens the tooth enamel. Enamel contains 96% of the minerals. The color of Enamel varies from light yellow to white.
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Please help <3!!!!!!!!
Answers
Answer:
750m/s
Explanation:
The wavelength of a wave can be calculated by using the formula:
λ = v/f
Where;
λ = wavelength (m)
v = speed of wave (m/s)
f = frequency (Hz or s-¹)
According to the information provided on the wave in this question, λ = 5m, f = 150Hz, v = ?
v = λf
v = 5 × 150
v = 750m/s
Hence, the velocity of the wave is 750m/s.
Which factors changed throughout the
experiment? Check all that apply.
Answers
Answer:
I do not see the experiment...
Explanation:
Please add a photo or info, because it is impossible to answer the question.
how can cells benefit from diffusion
Answers
Answer: Cells depend on diffusion to get the nutrients they need to develop and obtain energy as well as to rid themselves of waste materials.
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What is number of chromosomes in haploid cells in a monkey
Answers
Its chromosomal number of 30 and indeed the diploid number if 60 are shared by Diana and green monkeys. According to some kind of haploid number of 32, brown woolly monkeys have a diploid number of 64.
What a diploid cell is and how it works?Definition. Mammalian somatic cells contains 46 chromosomes, 22 pairs of autosomes, with two sets of sex chromosomes, making them diploid. A cell that seems to have each chromosome in two copies is said to be diploid.
What purpose does the diploid fulfill?During the process of sex maturation, diploid cells go through meiosis, producing haploid gametes. Haploidy therefore represents the limit of cell growth and is restricted to the post-meiotic gamete stage of germline development, whereas diploidy ensures pluripotency, cell proliferation, and other activities.
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Flowers shaped for their pollinators, specific camouflaged color patterns of animals, and a beaver's enormous front teeth for gnawing are all examples of
Answers
Flowers shaped for their pollinators, specific camouflaged color patterns of animals, and a beaver's enormous front teeth for gnawing are all examples of adaptations
Flowers have evolved fragrances, colors, patterns, and forms to attract pollinators, and pollinators have evolved traits such as long tongues or beaks to access nectar in variously shaped flowers.
Animals may camouflage themselves using two major mechanisms: pigments and physical structures. Some species contain tiny pigments called biochromes that absorb some wavelengths of light while reflecting others. Species that have biochromes seem to change hues.
Beavers are widely recognized for their capacity to collapse big trees to collect food and building materials using just their well-developed incisor teeth and powerful lower jaw muscles. Beaver teeth never stop growing, therefore after years of eating hardwoods, they do not become very worn. Because of the strong orange enamel on the front of the tooth and the softer dentin on the back, their four front teeth (incisors) self-sharpen. As a result, when beavers chew wood, the softer backside of the tooth degrades faster, resulting in a chisel-like cutting surface.
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If a cow eats some grass, and I eat a cow, that makes me a ______________ ?
Answers
Answer:
Person?
Explanation:
Answer:
carnivore?
Explanation:
since you're eating meat? or are u looking for secondary consumer?
During the embryonic development, the trophoblast will develop into...
Answers
Answer:
These cells will develop into the chorionic sac and the fetal portion of the placenta (the organ of nutrient, waste, and gas exchange between mother and the developing offspring).
Explanation:
The cells that form the outer shell are called trophoblasts (trophe = “to feed” or “to nourish”).
hope this answer is correct ......
list four characteristics of all living things
Answers
Answer:
reproduction
respiration
growth
excretion
Which of the following macromolecules is a prominent part of animal tissue that functions in insulation, helping animals conserve heat and warmth?
Answers
Answer:
Lipids
Explanation:
1. What is the name of the body system responsible for breathing?
complete for brainlist
1. What is the name of the body system responsible
for breathing?
2. What are the parts of the respiratory system?
Your answer
3. What is the correct name for the windpipe?
Your answer
4. What do we Inhale and what do we Exhale?
Your answer
5. What happens in the Lungs?
Answers
Answer:
Explanation:
1)respiratory system
2)trachea, bronchi, bronchioles, alveoli, lungs, diaphragm
3)trachea
4)inhale oxygen and exhale carbon dioxide
5)gas exchange