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  1. (a) Discuss ways in which phenotypic variation occurswithin populations. (b) Explain how phenotypic variation aids inthe survival of the fit.

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Irving Heathcote
Irving HeathcoteLv2
28 Sep 2019

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Related questions

  1. (a) Discuss ways in which phenotypic variation occurs withinpopulations. (b) Explain how phenotypic variation aids in thesurvival of the fit.

Write your response below.

a) phenotypes can be caused by

  • genetic variation

  • environmental factors

  • Both.

Genetic variation cause phenotypic change. when two geneticallydifferent parents mate then there are chances to get phenotypicvariations. Like a mule is crossbreed between a horse and a donkey.while environmental factors are things in an organism'ssurroundings that can influence it in various ways. For example,body weight in humans may be influenced by genes but is alsoinfluenced by diet. In this case, diet is an example of anenvironmental factor.

I NEED B ANSWERED!!!

Is A correct? I might be wrong I'm terrible at thisclass please help

Which of the following are requirements for evolution by naturalselection?

I Environmental change

II Differential survival and reproduction

III Heritability of phenotypic variation

IV Variation in phenotype

V Sexual reproduction

A) II, III, V
B) II, III, IV
C) I, II, IV
D) III, IV, V
E) II, IV, V

1. How do bacteria acquire genetic variation and how does thatdiffer from the mechanism by which humans acquire variation?

2. Be able to explain why the following statement is true:Natural Selection works on individuals while evolution works onpopulations over generations. Or to put it another way: Individualsdo not evolve, populations do.

3. How can evolution explain the formation of complex structuressuch as the eye or the flagella motor?

4. What causes variation in a species? To put this another way:all humans have the same genes, yet we do not look alike. What isthe reason for the phenotypic differences between individuals ofthe same species? What is genetic recombination?

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