Answer:
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele's adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100% frequency) of a harmful allele in a population.
Explanation:
What percentage of the possible offspring will be hybrids?
Answer:
50 %
Explanation:
Which of the following are major contributors to the greenhouse effect? CHOOSE ALL THAT APPLY 1.enzymes 2. deforestation 3.carbon dioxide 4.acid rain 5.Ophotosynthesis
Answer:
Escribir en español por favor.?
The process by which natural variation among organisms that make them best adapted to their environment live and reproduce, therefore passing on to their offspring the genetic qualities best suited to that environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
Answer:
Natural Selection
HELPPPP
We have half of our genetic material from our mom and half from our dad
agree/disagree
Answer:
Agree. We Get One Chromosome from each Parent
Explanation:
Increasing sea surface temperatures should...
Lower the amount of dissolved oxygen in the ocean, depriving many
invertebrate animals of oxygen necessary to live.
Lower the amount of sea ice in polar areas. This will warm the water,
decreasing the abundance of primary producers and the number of
organisms that eat these producers.
Increase the temperature difference between the upper and lower parts of
the ocean, making upwelling less likely to occur. This will decrease ocean
nutrient levels, affecting the number of primary producers.
Raise water temperatures above the tolerance limits for many aquatic
organisms in tropical areas, increasing stress on these species.
Answer: they are all correct so select all
Explanation:
bc i did it and bc i said so
why groups of animals are found on some islands but not others?
Answer:
Wilson has created the theory of the biogeographic nature of the island, which predicts that the number of species on the island depends on the balance between colonization, the evolution of the novel island species, and extinction.
Explanation:
A new DNA sequence containing 596 species of terrestrial birds from 41 island chains (archipelagos) around the world has been assembled by the researchers. The data combined sample data from their own field visits, research, and field samples from GeneBank colleagues. This information was utilized to build and employ a dynamic model that predicted international relationships that regulate biodiversity variation in their novel analysis approaches. In that, they confirmed two main components of MacArthur and Wilson's initial biogeography theory on the island.
The understanding of biodiversity on the island is important to conservation but also has implications beyond that – when imposing barriers to species dispersal it could enable us to assess better the effects of human activities, and it can contribute to a wider understanding of biodiversity around the globe.
6. Parts per million is used to express the A) atomic mass of an element B) concentration of a solution C) volume of a substance D) rate of heat transfer A B
plz help giving brainliest!!!!!
What is the function of the outer covering in fish?
1 Protects the fish from their environment
2 Supports the body and internal organs
3 Used for reproduction
4 Works with the muscles to allow movement
Answer:
Your answer is A,
Explanation: D can be argued for as well but those are the secondary functions of scales. Their main function is to protect the fish.
Many fish contain an outer covering of scales. Scales protect fish, much like a suit of armor. All fish have a dirty covering of mucus. This substance permits the fish to swim through the water with very little yawn and also makes it hard for other organism to adhere to the fish.
What are the functions of the parts of a fish?The dorsal and ventral fins mainly help fish to not move over onto their flanks.
The caudal fin is the main fin for propulsion to move the fish forward. The coupled fins help with steering, stopping and hovering.
Thus option "A" is correct, Protects the fish from their environment.
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50 POINTS 4. The age of the Canyon Diablo meteorite was determined by
A) carbon-14
B) uranium-235
C) hydrogen-3
D) potassium-40
Answer:
The answer is uranium have an awesome day!
What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over C3 photosynthesis?
a.They make it possible for the plant to use the Calvin cycle during the day.
b.They allow the plant to synthesize glucose without CO2.
c.They allow the plant to hold its breath and still perform photosynthesis.
d.They allow the plant to synthesize glucose under hot conditions.
Answer:
D. They allow the plant to synthesize glucose under hot conditions.
Explanation:
C4 and CAM photosynthesis strategies allow for plants to produce glucose in hot and dry conditions.
Plants such as cacti, which live in hot conditions, have the advantage from their C4 and CAM systems.
In contrast to C3 photosynthesis, C4 and CAM systems allow plants to get more CO2 from the air and help them conserve water.
This then allows them to efficiently create glucose with the CO2.
So, the correct answer is D.
Answer:
D. they allow the plant to synthesize glucose under hot conditions.
Explanation:
Hurry!!! Timed!! Do NOT answer with a link!!!
Which statements describe gene therapy? Check all that apply.
A. It cures all cases of cystic fibrosis.
B. It involves the modification of DNA. C. It is easy to apply to all cells affected by the disorder.
D. It attempts to replace a mutated gene with normal DNA. It does not always cure patients who use it.
Answer: B, D
Explanation:) edge 2022
Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped.
Energy pyramids, however, are always upright. Why?
Answer:
The correct answer is - as energy lost at every trophic level.
Explanation:
In any ecological ecosystem the energy pyramids always upright unlike other pyramids such as biomass showing the number of organisms, that can be diamond shape, inverted or upright.
The main reason behind this is due to the fact that it is only a pyramid in the ecosystem that always unidirectional in the food chain which is always some energy lost with an increase in the trophic level in the food chain. This loss of energy always gets back to the atmosphere in each step of the food chain.
As the energy is lost at every trophic level, the energy pyramids are always upright. A further explanation is below.
In whatsoever biological environment, the energy pyramid always seems to be straight, unlike some of the other pyramidal, including such biomass, which might be diamond-shaped, overturned, as well as upstanding.Essentially the food chain is simply a pyramid, and there is always some power loss as that of the primary consumers throughout the chain increases.
Thus the response above is right.
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The limiting nutrient to plants is often
A. usable nitrogen
B. protein
C. liquid water
The diagram illustrates the foraging distribution of three different species of waterfowl in a pond and surrounding wetland areas.
Which statement accurately explains the phenomenon shown in the illustration?
Answer: C) Each species evolved a unique foraging area as a natural result of competition.
Explanation: i just took the test
land where it is possible to grow crops is called
A.organic land
B.agricultural land
C.vegetative land
D.All of the above
Scientific ideas are open to being revised. Which of the following would most likely lead to a scientific idea being revised?
1. A scientist makes observations to test an older idea.
2. A scientist raises new questions about an older idea.
3. A scientist has a new idea that goes against an older idea.
4. A scientist collects data that fails to support an older idea.
4 Which factor determines whether an energy resource is renewable or nonrenewable
energy? 6.ESS3.1
A whether or not the resource can be sold to people for money
B. the types of energy conversions involved in forming the resource
C. the amount of pollution produced from obtaining and using the resource
D. the ratio of the rate at which it is used to the rate at which it is replenished
Answer:
D the ratio of the rate at which it is used ....
The landforms indicated by the arrows in the image are common features off the coast of Mississippi. What are these features?
A)
coral reefs
B)
barrier islands
9
continental shelf
D)
submerged mountains
Answer:
b) barrier islands
Explanation:
I looked up Mississippi barrier islands and they were a thing.
Evolution is a result of–
a. natural selection.
b. species not adapting quick
enough.
c. competition for resources.
d. harmful mutations.
Answer:
c
Explanation:
Which limiting factor is this adaptation a response to
Answer:
Answe
Explanation:
A limited factor that causes adaptation is the loss of habitat,food,or new species.
In a microclimate, the conditions of the small area are______?
A. the same as in the larger surrounding area
B. microclimates do not exist
C. much different than in the larger surrounding area
D. always hotter than in the larger surrounding area
the answer should be option A
An example of chemical digestion is the breakdown of
into
Select one:
O a. fatty acids; cholesterol
O b. polysaccharides; amino acids
c. amino acids; proteins
d. proteins; nucleotides
nucleic acids; nucleotides
e.
Answer:
B
Explanation:
An example of chemical digestion is the breakdown of nucleic acids, or nucleotides, which is in option e. Chemical digestion involves the breakdown of large, complex molecules into smaller ones, so here the correct option is option e.
Chemical digestion is a process that occurs in the digestive system, specifically in the stomach and small intestine, where complex macromolecules are broken down into smaller, simpler units through chemical reactions facilitated by digestive enzymes. Proteins are large macromolecules made up of chains of amino acids. Hence, here the correct option is option e.
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which of these is an example of an abiotic factor
A:creosote plant
B:rocky desert soil
C:kangaroo rat
D:coyote
Answer:
[tex]\boxed {\boxed {\sf B. \ Rocky \ desert \ soil}}[/tex]
Explanation:
An abiotic factor is a part of an ecosytem, but it is not alive. Some examples include water, rocks, sunlight, and the atmosphere.
On the other hand, a biotic factor is a living part of an ecosystem. Some examples are animals, plants, and fungi.
Let's look at the answer choices.
A creosote plant (choice A) kangaroo rat (choice C) and coyote (choice D) are all living organisms. Therefore, they must be biotic factors.
However, rocky desert soil (choice B) is not living. It's a part of the ecosystem, but since it's not alive it must be abiotic.
Based on your observations, what do warm fronts seem to have in common?
Answer:
Warm fronts are characterized by low cloud cover and higher temperatures.
A dry cement road is a diffuse reflector. When it rains, the water fills in all the little holes and cracks in the cement road and it becomes a smooth regular reflector. At night, when you are depending on the light from your headlights to show you the lines on the road, a wet road becomes much darker and it is more difficult to see the lines. Explain why this occurs.
Answer:
Because of reflection of light away from the marking
Explanation:
It is because the light from a vehicle falls on the road and its markings which then gets illuminated as light is reflected only in one direction.
But in case when the road is wet, light of vehicle reflects in different directions away from the markings on the road and hence they do not illuminate.
The reason why the given phenomenon about the effect of light and while driving is; Due to total internal reflection of light away from the marking.
What is reflection of light?Reflection of light is simply defined as the phenomenon where light is sent back after being incident on a surface.
Now, in this question, the light from a vehicle falls on the road and its markings and then gets illuminated as light is reflected only in one direction.
However, when the road is wet, the headlight of vehicles tend to reflect away from the markings on the road in different directions which make them not to illuminate.
Thus, we conclude that reason why the given phenomenon about the effect of light and water on driving is due to total internal reflection of light away from the marking.
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How do i solve this problem?
What are the correct answers?
Answer:
please I can't see the words
All of the following have been accomplished by space programs except-
A. placing semi-permanent structures in earth’s orbit
B. landing spacecraft on planets other than our own
C. sending spacecraft into orbit that allow us to study the universe in greater detail
D. develop technology and resources capable of sending the general population into space on a regular basis
Answer:
B
landing spacecraft on planets other than our own
which of the following human cells has a ploidy number of n?
A uterine
B sperm
C bladder
D lung
Answer:
Sperm
Explanation:
Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n).
The coordinates of the vertices of a polygon are shown below.
M(–1, 3), N(–4, 0), O(–1, –3), P(3, –3), Q(4, 0), R(3, 3)
What type of polygon is this figure?
Answer:
a hexagon
Explanation:
since it has six sides
The service box is an area on the court that 1 point the person serving must stand in. the ball must land in to be a playable serve. the person returning the serve must be standing in before a server can serve
Answer:
Both players on the serving doubles team have the opportunity to serve and score points until they commit a fault *(except for the first service sequence of each new game).
The first serve of each side-out is made from the right-hand court.
If a point is scored, the server switches sides and the server initiates the next serve from the left-hand court.
As subsequent points are scored, the server continues switching back and forth until a fault is committed and the first server loses the serve.
When the first server loses the serve the partner then serves from their correct side of the court (except for the first service sequence of the game*).
The second server continues serving until his team commits a fault and loses the serve to the opposing team.
Once the service goes to the opposition (at side out), the first serve is from the right-hand court and both players on that team have the opportunity to serve and score points until their team commits two faults.
In singles the server serves from the right-hand court when his or her score is even and from the left when the score is odd.
Explanation: