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KengaRu [80]
3 years ago
13

The apple tree receives 1000kJ of light from the Sun, but only uses 500kJ. Of this, only 250kJ are stored in the tree to be tran

sferred through the food chain.
a) Calculate the efficiency of the tree (2)


b) State the ways in which the remaining energy has been transferred out the of the food chain (3)
Biology
1 answer:
alisha [4.7K]3 years ago
3 0

a) 250/1000 × 100 = 25%

b) Respiration, decomposition

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Explanation:

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If an organism is homozygous for a particular trait, the organism A. has extra alleles on both chromosomes in a chromosome pair.
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<em>B. Has the same allele on both chromosomes in a chromosome pair. </em>

<u>Here is why:</u>

Homozygous means the same, while heterozygous means different. If both of the same alleles are on both chromosomes, then it will be a homozygous.

There can be two types of homozygous alleles.

~

<em>Homozygous Dominant</em>: BB

<em>Homozygous Recessive</em>: bb

<u>Notice in both of these they were the same alleles.</u>

~

<em>Heterozygous</em>: Bb

<u>Notice how both are different alleles.</u>

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Below I have attached a diagram of a Punnett square I have made.

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On the top is a heterozygous allele pair.

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algol13

Answer:

475

Explanation:

The strand is only made up of Adenine, Thymine, Cytosine and Guanine. There will be the same number of Adenine as there are Thymine and the same number of Cytosine as there are Guanine.

We know there are 425 Thymine. This means there are also 425 Adenine. Therefore, you would subtract 850 (425x2) from 1800 to find the amount of Cytosine and Guanine left, which is 950.

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