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mixer [17]
3 years ago
13

Please help!! A light-year is about _____. 6 million miles 6 million kilometers 6 billion miles 6 trillion miles none of the abo

ve
Biology
2 answers:
lana [24]3 years ago
7 0
The answer would be 6 billion
Ksenya-84 [330]3 years ago
3 0
A light year is about 6 billion miles
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Rzqust [24]

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Cell renewal, growth, and asexual reproduction :)

Explanation:

7 0
3 years ago
The hormone epinephrine binds to ß adrenergic receptors on smooth muscle cells of the bronchioles, causing them to dilate (incre
ANTONII [103]

Answer:

The correct answer is "permissiveness".

Explanation:

The missing options of the question are:

permissiveness

synergistic effect

antagonism

additive effect

The correct answer is "permissiveness",

In biology, a permissive effect is defined as the effect that one hormone has enabling that a second hormone to exert its biological activity. Thyroid hormone has a permissive effect on the hormone epinephrine, by synthesizing ß adrenergic receptors, it enables the hormone epinephrine binds to them and cause the cells of the bronchioles to dilate.

5 0
3 years ago
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Which of the following is a general way to describe the base pairing rules for DNA
Savatey [412]
Adenine and thymine are complementary bases, as well as cytosine and guanine. Complementary bases bind always with each other, and never with another base. Cytosine and guanine are joined together by 3 hydrogen bonds and thymine with adenine with 2 hydrogen bonds
3 0
3 years ago
What 3 systems get put to work when feeding and how does each one work when you eat?
RSB [31]

Answer:Digestive and muscular systems would be working together to chew food and work it down to the stomach to be digested. The digestive system and circulatory circulatory system would be working together to break food down and move nutrients to cells. The nervous system decides what to eat and when to chew.

Explanation:

6 0
2 years ago
Which of the following is conical movement in which the distal end of a structure moves in a circle and the proximal end remains
mars1129 [50]

Answer:

The correct answer is OPTION C (Circumduction)

Explanation:

Circumduction is motions without clear opposites of the part of the body, an example is rotating the hand from the wrist. The answer is circumduction because this type of movement ensures the distal end of a bone moves in a circle while the proximal end remains relatively stable is particularly found in bones where the movements of the joints are opposite to each other example is the ball and socket joint movement. For circumduction to take place, the degree of distance between two bones of the body has to be decreased and sometimes straightened to increase the level of movement or motion produced, there must be a movement towards the middle of the body and sometimes joint movement away from the middle of the body. All these movements are in order.

4 0
3 years ago
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