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Phantasy [73]
3 years ago
7

Which of the following statements is true? A. Biodiversity provides additional resources that raise the carrying capacity of an

ecosystem. B. Biodiversity increases an ecosystem's ability to withstand changes. C. Biodiversity makes an ecosystem more difficult to destroy. D. Biodiversity provides additional sources of food for the weakest organisms in an ecosystem. I figured out that the answer is B.
Which of the following determines the carrying capacity of a particular population by an ecosystem? A. keystone species B. pioneer species C. limiting factors D. renewable resources.

Which of the following is a form of pollution triggered by formation of a gas, and can have dramatic effects on the health of the coral reef ecosystem? A. fog B. pesticides C. acid rain D. oil spill
Biology
1 answer:
Dmitry [639]3 years ago
6 0

Answer:

b

Explanation:

because there are so many different things you get adaptations and evolution in the biome

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Answer:

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Explanation:

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ch4aika [34]

Answer:

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3 years ago
In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f
Simora [160]

Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

4 0
3 years ago
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