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solniwko [45]
3 years ago
7

How has artificial selection demonstrated species changing over time

Biology
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

Long before Darwin and Wallace, farmers and breeders were using the idea of selection to cause major changes in the features of their plants and animals over the course of decades. Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.

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A person who has very toned muscles likely has.... A.extra nerve cells. B. lots of digestive enzymes. C.tightly packed myofibril
Zarrin [17]

We can confirm that a person with very toned muscles likely has tightly packed myofibrils.

<h3>What are myofibrils?</h3>

These fibers are the protein filaments that cause contractions in the structure of the muscle. Weight training tones muscles by increasing the number of myofibrils in a sarcomere, thus increasing its capacity to produce force.

Therefore, we can confirm that a person with very toned muscles likely has tightly packed myofibrils.

To learn more about muscle fibers visit:

brainly.com/question/1426285?referrer=searchResults

4 0
2 years ago
Part of the quadriceps group of muscles<br> a. Rectus femoris<br> b. rectus abdominis
mina [271]

Answer:

A. Rectus femoris

Explanation:

Rectus femoris is one of the muscles of the Quadriceps femoris group which in turn makes the anterior and posterior thigh. The rectus femoris,  vastus intermedius, vastus medialis, and vastus lateralis together make the quads. Rectus femoris is the thigh muscle that originates from the ilium. It is an example of bipennate muscle and has central tendons. Fascicles are located on either side of the tendons.

5 0
3 years ago
1 2 3 4 5 6 7 8 9 10 TIME REMAINING 36:29 Recreational activities can cause an increase in erosion rates. Please select the best
VashaNatasha [74]
I believe the answer is true because we spill liquids during these events causing more erosion
6 0
2 years ago
Read 2 more answers
______ is a chart used to show the possible outcomes of allele combinations that parents can pass on to their offspring.
kolezko [41]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ B. Punnet Square is a chart used to show the possible outcomes of allele combinations that parents can pass on to their offspring.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

3 0
3 years ago
Read 2 more answers
In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher
dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.

8 0
2 years ago
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