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sattari [20]
3 years ago
11

The evolution of the heart from 2-chambers, to 3-chambers, to 4- chambers allowed the animal to

Biology
1 answer:
Dima020 [189]3 years ago
4 0
The four chambers improved the effectiveness of double circulation. Is that what u mean?
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Scientists have found ash in certain layers of sediment in an area in northern China. This is evidence that a volcano erupted in
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Scientists can find out when the volcano erupted by determining the age of the fossils in the ashy layers of sediment in area.

<h3>What is a Volcano?</h3>

This is defined as a vent or opening where lava erupts on to the surface of the Earth.

The age of the fossils in the ashy layers of sediment in area will help to determine the time when the volcano erupted.

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2 years ago
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<h3>1. YES - Because progression is shown.</h3><h3 /><h3>2. NO - Because the data is evidence that the athlete can run much faster.</h3>

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8 0
3 years ago
The site of intercellular communication between a neuron and another cell is the synapse. -interneurons are the most numerous ty
Paha777 [63]

The question is stated incorrectly. The correct question is as follows;

The site of intercellular communication between a neuron and another cell is the.

Answer:

Synapse.

Explanation:

Neurons have dendrites, cell body and axons. Millions of neurons are present in the nervous system. Different types of neuron are sensory neuron, motor neuron and interneuron.

Synapse may be defined as the gap between the two consecutive neurons. The junction between the two neurons that helps in the intercellular communication. The neurotransmitters are diffused directly and transmit information through these synapse.

Thus, the correct answer is synapse.

8 0
2 years ago
Describe the three chemical changes that occur during the light-dependent reactions.
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Answer:

  1. it uses light energy to make two molecules needed for the next stage of photosynthesis
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Explanation:

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8 0
3 years ago
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If your parent cell started out with 8 chromosomes, how many sister chromatids would be produced during interphase? during mitos
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