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BartSMP [9]
3 years ago
6

What is evolution? ..............

Biology
2 answers:
natita [175]3 years ago
8 0

Answer:

the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

jeka943 years ago
5 0

Answer:

Evolution is the process of living things changing over time,and how a new species develop

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One advantage of asexual reproduction is that animals can _______.
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The sleep like state which an animal adopt to lower metabolic rates is called
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Heyy :))

The best answer would be:
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Which species is least likely to survive according to charles darwin?
borishaifa [10]
Humans are least likely to survive.
6 0
3 years ago
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Which of the following best describes a crevasse?
belka [17]

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4 0
3 years ago
Sickle cell anaemia is an inherited autosomal recessive
alekssr [168]

Answer:

1/8 (12.5%)

Explanation:

An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene <em>locus</em> to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).

- Parental cross for sickle cell anaemia trait = Hh x Hh >>

- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>  

- Sex proportion of sickle cell anaemia individuals =  1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)

3 0
2 years ago
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