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liberstina [14]
3 years ago
9

Many organisms in the ocean live at depths of water not able to receive sunlight. Since the main marine food web is based on the

se organisms, how are deep ocean ecosystems able to survive? Question 3 options:
A:Many of the deep ocean animals come to the surface to consume organisms. B:Deep ocean animals are fueled by chemical energy rather than products of photosynthesis.
C: These deep ocean animals rely on organisms that have died and sank to the bottom of the ocean.
D: These deep ocean organisms are able to produce their own energy even in the absence of sunlight.
Biology
1 answer:
Alexeev081 [22]3 years ago
5 0

Answer:D

Explanation:

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People who are tune deaf are unable to follow a rhythm. Scientists have evidence that tune deafness can be genetic. The pedigree
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Pedigree attached

a. Provide evidence from the pedigree that conclusively shows that the tune deafness allele is autosomal dominant, not autosomal recessive. Explain your reasoning.

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b. Since individual 5 is unaffected and we know this is the recessive trait, they must be Tt. Since individual 6 is affected, they must be either Tt or tt. However, they have children who are unaffected (11, 12, 13) who must be tt. This means, individual 6 must have the t allele to pass on, and must be Tt. Therefore, the cross between individuals 5 and 6 is tt x Tt:

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t        Tt       tt

t       Tt       tt

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