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Damm [24]
4 years ago
6

This is a period of time when extensive glacial ice covered much of earth, producing long-term climate change and causing the ex

tinction of many species on earth.
Biology
2 answers:
iragen [17]4 years ago
5 0

Answer:

ice age/ Quaternary glaciation

Explanation:

Ice ages have occurred in the earth history and do occur more or less regularly in a cycle. It is believed that ice ages are as a result of small changes in the earth's orbit and also dependent on the solar cycles. The temperatures on the earth reduce causing the ice sheets in the poles to extend to the subtropics.

Likurg_2 [28]4 years ago
4 0

Answer:

ice age

Explanation:

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As per the given information in the question, when true-breeding, red snapdragons are crossed with true-breeding white snapdragons, they produce pink colored offspring. This means that neither of the parental gene is dominant over the other.

When both are cross bred, they will represent a heterozygous state ( when alleles for both the snapdragons are present ), and they will produce an intermediate phenotype ( that is a blend of both the traits). This represents blending of the parental trait.





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