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Sonbull [250]
3 years ago
6

Why is the fossil record of marine organisms MORE complete than that of organisms from terrestrial ecosystems?

Biology
1 answer:
11111nata11111 [884]3 years ago
5 0

Answer: Gaps in the fossil record. Because not all animals have bodies that easily fossilize, the fossil record is considered incomplete.

Explanation:

The fossil record is in fact incomplete, preserved fossils represent a biased sample, fossil discovery is not random and those found reveal only partial information about the original organisms. Nucleic acids, for example, have a very limited survival time.

Under normal conditions of fossilization, only about 15% of organisms are probably conserved. The fossil record is influenced in favor of those animals and plants with hard, mineralized shells, skeletons or cuticles, and towards those that live in marine environments.

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A student proposes that left-handedness is a recessive trait and is hidden in much of the human population. a survey of his clas
djverab [1.8K]

The frequency of the recessive allele for the left handle will be in this case equal to q^2 = 0.25 >> q = 0.5.

<h3>What is the Hardy Weinberg principle?</h3>

The Hardy Weinberg principle is a model used in population genetics to estimate genotypic and allele frequencies.

The Hardy Weinberg principle states that the sum of the dominant allele and the recessive allele in a population is equal to 1 (p + q = 1).

This principle also states p2 + q2 + 2pq = 1, where p^2 is the dominant homo-zygous allele, 2pq the heterozygous frequency and  q^2 the recessive homo-zygous frequency.

In this case, 9 individuals represent 25% (q^2 = 0.25), thereby the feecuency of q is equal to √0.25 = 0.5.

Learn more about the HW principle here:

brainly.com/question/1365714

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2 years ago
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I hope this helps! :)

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