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Pie
3 years ago
9

Biology Help. 6 questions?

Biology
1 answer:
NeX [460]3 years ago
5 0
Check the answers below:

• Genetic Drift refers to the change of the frequencies of allele due to some random events• All the choices are correct.• The answer is true.• Other term for reinforcement is dispersive selection• The populations of birds will not be able to interbreed because they are different species.• The fitness of the large-beaked birds will increase and also it increases to possibility of creating new species.
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Which of the following bacterial cells would best be able to survive an attack by an antibiotic?
Goryan [66]

Answer:

c. A bacterial cell that lacked receptors on its surface for that antibiotic

Explanation:

If the bacteria lacks the receptors on its surface meant for that antibiotic then it will be best defense for the survival of that bacteria. It is receptors which interact with the antibiotic so as to permit it inside the cell. Therefore, in the absence of receptors, it doesn't matter how much antibiotic is lying in the external environment of that bacteria, the antibiotic will not be able to enter the bacterial cell to kill it. Hence, the bacteria will be able to survive easily.

7 0
3 years ago
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The graph is steeper between 1900 and 1905 than between 1905 and 1927. What does the steepness of the line
Elina [12.6K]

Answer:

The steepness of the line represents the rate of erosion in meters per year.

Explanation:

Official answer.

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3 years ago
Which process takes place in the mitochondrion?
ser-zykov [4K]
There are no answer choices, but I know the mitochondria create energy for the cell.
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what is the length of time called that an organism is expected to live? a. life span            b. homeostasis c. stimulus      
IrinaK [193]
The question is asking to choose among the following choices that states the length of time that an organism expected to live, and base on my research and further investigation, I would say that the answer would be A. life span. I hope you are satisfied with my answer and feel free to ask for more 
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3 years ago
Which steroid hormone(s) would not be produced if you blocked the activity of p450scc?
natka813 [3]
P450scc or cholesterol side chain cleavage enzyme is an enzyme that converts cholesterol into pregnenolone (the precursor for steroids). The kinds of steroid hormones are mineralocorticoids (i.e. aldosterone) glucocorticoids (i.e. cortisol), and sex steroids (i.e. testosterone, estrogen). In the event where P450scc is blocked, then there will be no production of mineralocorticoids, glucocorticoids, and sex steroids. There will be no production of aldosterone, cortisol, estradiol, testosterone, and progesterone. This disease is called Lipoid Congenital Adrenal Hyperplasia.
3 0
3 years ago
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