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Sindrei [870]
3 years ago
15

If you could travel millions of years back in time the land masses on earth would not look lke they do today. huge areas were co

vered in swampy, marsh-like conditions. today, many of those previously wet areas are now dry land. so what happened to change land from wet to dry?
Biology
1 answer:
Nataliya [291]3 years ago
8 0
There are many answers to your question but one way is the evaporation cycle.
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A new mutation arises in one person on the island of Kiribati (human population size 100,000). Assuming this particular mutation
tatuchka [14]

Answer:

0.999999 ≈ 1

Explanation:

In a population ( N ) there is the presence of 2N alleles in the population also chance of fixation can be expressed as ; 1/ 2N

Therefore the probability that the mutation will be lost due to genetic drift

= 2N - 1 / 2N ---- ( 1 )

given that ; N = 100,000

back to equation 1

P ( losing mutation due to genetic drift ) = ((2*100,000) - 1 )) / ( 2* 100,000 )

= ( 200,000 - 1 ) / 200,000

= 0.999999 ≈ 1

5 0
2 years ago
NEED ASAP PLS HELP
pychu [463]

Answer:

C

Explanation:

C is what the circulitory system dosent do so its C :) Sorry, i sent this a bit late.

7 0
3 years ago
Read 2 more answers
In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain
katrin [286]

Answer:

The correct answer is D

Explanation:

The cell membrane is essentially composed of the following:

  • phospholipids
  • cholesterol
  • proteins

The phospholipid consists of a <em>hydrophilic </em>phosphate 'head' and the tail is the <em>hydrophobic</em> fatty acid chain.When cellular membranes form,phospholipids collect into two layers in light of these hydrophilic and hydrophobic properties. The phosphate heads in each layer face the fluid or watery condition on either side, and the tails conceal away from the water between the layers of heads, since they are hydrophobic.

There are 3 main factors that greatly influence the fluidity of the plasma membrane:

  • temperature
  • cholesterol
  • saturated and unsaturated fatty acids

8 0
3 years ago
A student completed an experiment investigating the response of tomato plants to gravity and created the table below. What can y
Natali5045456 [20]

Plants respond immediately to the gravitational attraction of the Earth as well as to light. Stems develop away from the center of the Earth and toward the light due to negative gravitropism.

<h3>What is negative gravitropism?</h3>

Negative gravitropism occurs when shoots develop in the opposite direction of gravity toward sunlight.

Plants respond immediately to the gravitational attraction of the Earth as well as to light. Stems develop away from the center of the Earth and toward the light due to negative gravitropism.

Thus, the given experiment shows negative gravitropism.

For more details regarding gravitropism, visit:

brainly.com/question/22723426

#SPJ1

3 0
1 year ago
Thomas malthus influenced the development of darwin's and wallace's theories of natural selection.
posledela
A. True
Happy studies!
7 0
3 years ago
Read 2 more answers
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