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Zigmanuir [339]
3 years ago
15

The ultimate source of energy for physical life on Earth is the Sun. a. True b. False

Biology
2 answers:
Marrrta [24]3 years ago
7 0

<u><em>the answer is true</em></u>, because the sun gives plants the needed energy to make food which in turn makes oxygen, and it produces light and heat for the earth

balandron [24]3 years ago
3 0
True because you need the sun to grow our food which gives us energy
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Drag each of the following labels into the appropriate box to identify which motor division of the peripheral nervous system is
nadezda [96]

Answer:

<h3> Somatic: </h3>
  • Skeletal muscle activation
  • Voluntary
  • Principally involved with movement "of" the body.
<h3>Autonomic: </h3>
  • Can be excitatory or inhibitory on the target organ.
  • Principally involved with the movement of materials through the body.
  • Intestinal smooth muscle activation.
  • Sweat gland activation
  • Lacrimal gland activation
  • Piloerector muscle
  • Involuntary activation.

Explanation:

We can divide the nervous system into the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which consists of all the nerves that are throughout the body carrying information from and to the central nervous system.

We divide the peripheral nervous system into the somatic nervous system and the autonomic nervous system.

The somatic nervous system is the conscious one, that is to say, that we know and control what it does. It is voluntary. It has motor and sensory neurons that carry information to and from the central nervous system. The somatic nervous system is the one that makes us move our muscles to do an action.

The autonomic nervous system is involuntary. In other words, we can not control it consciously. It is the one that controls glands, organs, and smooth muscle, like the one that surrounds the digestive tract to move the food. As we can not consciously control it, this system can work exiting or inhibiting an organ depending on the situation.

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3 years ago
Intermediary molecules that accept electrons and transfer them to another molecule are called
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Intermediary molecules that accept electrons and transfer them to another molecule are called. coenzymes.
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2 years ago
1. If a black heterozygous guinea pig is crossed with a homozygous white guinea pig with the
lapo4ka [179]

Answer:

2/4

Explanation:

because the ratio off the offspring is 2 black pig : 2 white pig. so probability of white pig will be 2/4.

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3 years ago
Name 5 different types of cells that can be found in the human body.PLEASE HELP
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A new experimental pesticide is being tested by a large agricultural chemical company. An unfortunate side effect in plants trea
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Answer:

A. The synthesis of triose phosphates from 3-phosphoglycerate

Explanation:

ATP and NADPH are produced during light-dependent reactions of photosynthesis in chloroplasts. These molecules serve as an energy source and reducing power respectively during the Calvin cycle. Calvin cycle includes fixation of carbon into 3-PGA followed by reduction of 3-PGA into glyceraldehyde 3-phosphate (a triose phosphate).

The reduction step also uses NADPH as an electron donor. Two molecules of glyceraldehyde 3-phosphate make one molecule of glucose. A reduced ATP production during light-dependent reactions in chloroplast would not allow the reduction of 3-PGA into glyceraldehyde 3-phosphate. Without the formation of triose phosphate, glucose synthesis will also reduce.

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