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Natasha2012 [34]
3 years ago
7

HELP PLEASE!!!!!!!!!!!! ERGENT

Biology
2 answers:
tatuchka [14]3 years ago
3 0
Heat.

90% of all energy is released as heat in ecosystems.
Sedbober [7]3 years ago
3 0

Ans.

In an ecosystem, energy continuously gets in mainly from the sun, and transfers through the food chain. Photosynthetic plants transfer energy to herbivores and then, energy is transferred to carnivores from herbivores.

Organisms perform cellular respiration to obtain energy for daily-life functions through the breakdown of food. During energy transfer, some energy is lost to the environment, when organisms produce heat due to breakdown of bonds as a byproduct of cellular respiration.

Thus, the correct answer is option B). 'heat.'



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In humans, a type of blindness is due to a dominant allele; normal vision is the result of a recessive allele. Migraine headache
yan [13]

Answer:

Yes.

Probability of such child = 1/2 or 50%

Explanation:

According to the question, below are the genotypes and phenotypes possibilities:

aa = normal vision & no headache

Aa = normal vision & no headache

AA = blindness & headache

                                                                      Male                       Female

                                                                        Aa                            aa

Possible genotypes of progeny:            Aa        Aa           aa         aa

So it is clear that out of the 4 probable children, 2 with 'genotype aa' will have normal vision & no headache.

Mathematical expression is as under:

2/4 = 1/2 that means 50% progeny.

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