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beks73 [17]
3 years ago
9

What is a classification key? dichotomous key?

Biology
1 answer:
REY [17]3 years ago
7 0
A classification key is a way of categorizing living things by determining and arranging them according to their common qualities. Dichotomous key is a key for determining the identity of the organism based on two choices in each set of characteristics. The dichotomous key for sharks are the shape of the body, number of gill slits, position of mouth, and shape of caudal fins. Other characteristics include length or number of dorsal fins, presence or absence of pelvic fins, anal head, and shape of head.
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Which of these requires a host cell to copy its genetic material and protein coat?
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3 years ago
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What are some synonyms to mitigate?​
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Answer: llay, alleviate, assuage, ease, help, mollify, palliate, relieve, soothe. Words Related to mitigate. abate, lighten, moderate, soften, temper. cure, heal, remedy. amend, correct, emend, fix, mend, rectify, reform, repair.

Explanation: hope this helps

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If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?
kaheart [24]

Answer:

only females

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In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

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When carbon monoxide is present in the blood, the body's tissues and cells are deprived of
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Answer:

The correct answer is oxygen.

Explanation:

Hope this helped Mark BRAINLEST!!

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