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natulia [17]
3 years ago
12

The two sides of the DNA helix are held together by

Biology
2 answers:
nirvana33 [79]3 years ago
8 0

Answer:

The two sides of the DNA helix are held together by

Sergeeva-Olga [200]3 years ago
6 0
Hydrogen bonds I believe is the right answer
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For bacteria to continue growing rapidly when they shift from an aerobic environment to an anaerobic environment, they must
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<span>The answer to this question would be: e. increase the rate of the glycolytic reactions.

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Extrusive rocks have larger grains than intrusive rocks.true or false and why
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which of the following is not an example of symbiosis? A. red blood cells containing malaria B. vines using a tree for support C
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Answer:

A. red blood cells containing malaria

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A carbon Atom can bond with four other atoms because
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A carbon atom has four electrons in it’s balance shell. as the maximum number of electrons that can be within the second shell of electrons is eight, it is able to bond with four other atoms in order to have a full shell of electrons.

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5 0
2 years ago
Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges. Pollen grains (whi
jarptica [38.1K]

Answer:

The correct answer is: Yes, this is an example of Reproductive Isolation.

Explanation:

  • Reproductive Isolation can be defined as the mechanism adopted by different species during the course of their evolution, due to which the individuals belonging to different species are incapable of mating with each other and producing viable offspring.
  • The given question is an example of Mechanical, Pre-zygotic Reproductive Isolation.
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  • Mechanical Isolation refers to the mechanism adopted by individuals of  different species during the course of evolution such that their reproductive organs or the organs that assist in the process of reproduction are incompatible to each other. Hence, the gametes of each species are unable to come in vicinity of each other.
  • Here, the pollen grain from the flower of one species of juniper is unable to form the pollen tube when its sits on the stigma of the flower of another species of juniper. This is an example of Mechanical Isolation.
8 0
3 years ago
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