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il63 [147K]
3 years ago
9

Look at the picture of a trilobite. these animals were once present in the ocean but are now completely extinct. what is a likel

y cause of trilobite extinction?
a. Something changed to limit and finally abolish their success in this environment.

b. Something changed that brought these creatures onto land in slightly different form.

c. They failed to develop vestigial organs that would have helped them survive.

d. They were no longer able to acquire their necessary characteristics for survival in a changing environment.
Biology
2 answers:
Tamiku [17]3 years ago
5 0
Okay so I just took the test and it said the answer is <span>Something changed to limit and finally abolish their success in this environment! I hope this helps!</span>
Dahasolnce [82]3 years ago
4 0

The answer is Something changed to limit and finally abolish their success in this environment. Just took the test.


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Answer take one piece of the squirrels diet away and see if anything has changed, if not give it that part back and take something else. repeat till change happens if nothing happens then change hypothesis

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3 years ago
Does salt make noodles cook faster?
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4 years ago
A heterozygous tall pea plant is allowed to self-fertilize. The resulting F1 progeny are 25% homozygous tall, 50% heterozygous t
maks197457 [2]

Answer:

25% heterozygous tall

Explanation:

If we take the F1 generation as parents and let them self-fertilise, we have 4 crosses.

The first one for homozygous tall, then we have 100% AA.

The second and third one for heterozygous tall and we have 25% AA, 50%Aa and 25%aa for each of them.

The last one would be for dwarf, and we'll have 100%aa.

Adding all of them, we'll have

AA = 100 + 25 + 25 = 150%

Aa =  50+50 = 100%

aa = 100 + 25 + 25 = 150%

as we had 4 crosses, so dividing the total percentages by 4, we'll have,

AA = 37.5%

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aa = 37.5%

:. The percentage of heterozygous tall would be 25%.

Hope it helps:)

8 0
3 years ago
Developmental psychologists study physical, cognitive, and ________ change throughout the human life span.
stiks02 [169]

Answer:

Social.

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Thus, the answer is social.

3 0
3 years ago
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