All categories

3 years ago

HELP ME NOWWWWWWWWW! ASAP

Biology

2 answers:

Lady_Fox [76]3 years ago

5 0

Asthenosphere! Would be it.

Mars2501 [29]3 years ago

4 0

Answer:

asthenosphere (AkA mantle)

Explanation:

The inner core is the innermost layer so this can not be it The outer core is surrounds the inner core this is not the answer. and atmosphere is the envelope of gases surrounding the earth or another planet. and we are talking about the inside of earth.

Please mark Brainleist

You might be interested in

A national park is home to large populations of mountain lions, deer, rabbits, and grass. Recently, park rangers decided to intr

solmaris [256]

Answer:

Explanation:

the wolve foesnt eat the grass so the grass is stay the same

8 0

3 years ago

Solve the equation of mava=mbvb max5.0ml=5.2mlx0.10m

maxonik [38]

Answer:

0.104M

Explanation:

The following equation is given in this question:

mava=mbvb

Where;

ma = molarity of acid (M)

mb = molarity of base (M)

va = volume of acid (ml)

vb = volume of base (ml)

According to this inputted values;

max5.0ml=5.2mlx0.10m

ma = unknown molarity of acid

mb = 0.10M

va = 5.0ml

vb = 5.2ml

Hence, ma x 5.0ml = 5.2ml x 0.10m

5ma = 0.52

ma = 0.52 ÷ 5

ma = 0.104M

8 0

3 years ago

PLEASEEE HELLPPP PLEASEE SOMEONE ANSWERR THISSS PLEASEEEEEEEEEE

vichka [17]

1) Natural Selection- General speaking, something must cause differential reproduction and then better suited individuals will survive over time.

- Detailed Explanation -

Natural selection is the process in which individuals whom are better suited to their environment will have an increase in fitness. It occurs over multiple generations and can take a very long period of time to occur.

For natural selection to occur, the following must be true:

1. There must be variation in traits (every individual can't be identical)

2. There must be differential reproduction (some individuals are more likely to reproduce than others)

3. Traits are passed on from generation to generation

Thus, the first step in natural selection is that something must cause differential reproduction. This could be the introduction of a predator, a disease, a random mutation that is detrimental, a change in resource availability such as a drought, and so forth.

This image shows how a genetic mutation is unfavorable and is selected against, but the same process holds for a gene that is unfavorable during any scenario.

This event causes some individuals to survive and reproduce and some to be less successful. For example, a predator is introduced and it hunts and kills mostly individuals with shorter legs that run slowly. Or the environment undergoes a long drought and individuals in the species who have a gene that helps them perspire (sweat) less are more successful.

Over multiple generations, the genetic composition of the species changes. Maybe within six generations the predator has completely wiped out individuals with shorter legs. Maybe within two generations the drought completely eliminates individuals with a gene that results in excess perspiration. The amount of time will vary.

2) Mutation - A change in the genetic structure of an organism.

Explanation:

Usually, a mutation has to be expressed as some macro-functional characteristic although some may be hidden in internal systems.

3) Genetic Drift- Genetic drift is the change in the frequency of an existing allele in a population due to random sampling of organisms.

Explanation:

The effect of genetic drift is larger when there are few copies of an allele, whereas when there are many copies the effect is smaller.

Genetic drift describes random fluctuations in the number of gene variants in a population. Once it begins, genetic drift will continue until the involved allele is either lost by a population or until it is the only allele present in a population at a particular locus. Both possibilities reduce the genetic diversity of a population.

Genetic drift can cause a new population to be genetically distinct from its original population, which has led to the hypothesis that it plays a role in the evolution of new species.

4) Gene Flow- Gene flow is a concept in population genetics to refer to the movement of genes or alleles between interbreeding populations of a particular species.

Explanation:

Gene flow is an important mechanism for transferring genetic diversity among populations. Migrants into and out of a population may result in a change in allele frequencies, thus changing the distribution of genetic diversity within the populations. High rates of gene flow can reduce the genetic differentiation between the two groups, increasing homogeneity.

It is thought that gene flow constrains speciation by combining the gene pools of the groups and thus, prevents the development of differences in genetic variations that would have led to full speciation. It is expected to be lower in species that have low dispersal or mobility, occur in fragmented habitats, there is a long distance between populations, and smaller population sizes.

It includes different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries. However, there are certain factors that serve as barriers to gene flow. Some of the factors affecting the rate of gene flow include physical barriers, geological events and geographical barriers.

5)Non Random mating- The nonrandom mating is a selective pattern.

Explanation:

The nonrandom pattern of mating is an assortative pattern of sexual reproduction. During the reproduction, similar phenotypes are selected for mating. It is a random process. It is also known as positive assortative mating.

7 0

3 years ago

How can recycling impact the environment? A) It uses less energy to make something from recycled materials than from new materia

o-na [289]

Answer:

A) It uses less energy to make something from recycled materials than from new materials.

Explanation:

When a recycled material is used to make a new product, it conserves energy because the recycled materials have already been processed once; so making something from it for the second time uses less energy-intensive than the first. For example: Making new aluminium from old products uses 95% less energy than making it from scratch.

Hence, the correct answer is "A)"

8 0

3 years ago

What is the term for the parts of the cell that accomplish the basic functions of living things

Nat2105 [25]

Answer:

Cell membranes

Explanation:

8 0

3 years ago