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wel
3 years ago
7

The second stage of prenatal development begins at about two weeks after conception. at this point, the growing bundle of cells

is called a(n) __________
Biology
1 answer:
Nata [24]3 years ago
7 0
The second stage of prenatal development begins at about two weeks after conception. at this point, the growing bundle of cells is called an embryo.
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The gas exchange during cellular respiration involves _____ moving into cells and ____ moving out of cells. The gas exchange dur
ludmilkaskok [199]

The gas exchange during cellular respiration involves oxygen moving into cells and carbon dioxide moving out of cells.

During gas change oxygen actions from the lungs to the bloodstream. on an equal time, carbon dioxide passes from the blood to the lungs. This happens within the lungs among the alveoli and a network of tiny blood vessels known as capillaries, which might be located in the walls of the alveoli.

Three strategies are critical for the switch of oxygen from the out of doors air to the blood flowing through the lungs: airflow, diffusion, and perfusion. ventilation is the manner through which air moves in and out of the lungs.

The lungs and respiratory system permit us to respire. they create oxygen into our bodies (called a concept, or inhalation) and send carbon dioxide out (referred to as expiration, or exhalation). This alternate of oxygen and carbon dioxide is referred to as respiratory.

Learn more about the gas exchange here brainly.com/question/15423560

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6 0
2 years ago
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Aquifer depletion is responsible for the collapse of land called _______________________
fgiga [73]

Answer:

Groundwater depletion

Explanation:

Aquifer depletion is responsible for the collapse of land called Groundwater depletion

8 0
3 years ago
Your classmate describes a growing baby as “a ball of multiplying cells that eventually grows large enough to form a baby.” Expl
julia-pushkina [17]

Answer:

Please, see the answer below.

Explanation:

The statement is inaccurate because a growing baby is not just a ball of multiplying cells that eventually grows large enough to form a baby.

<u>After fertilization and the formation of a single-cell zygote, the zygote continues to divide to form a ball of cells. However, at some points, the cells start to differentiate to give rise to various organs that make up the baby.</u>

<em>Without differentiation, there is not way the dividing cells will give rise to baby. Hence, a growing baby should be rather viewed as a ball of multiplying cells that eventually differentiates to form a baby.</em>

8 0
3 years ago
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The<br> is the driest biome on Earth.
meriva

Answer:

Desert biomes are the driest of all the biomes. In fact, the most important characteristic of a desert is that it receives very little rainfall.

Explanation:

4 0
4 years ago
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Why is ecology studied at the population level or higher??
IgorC [24]
<span>Most ecological process cannot be observed or studied at the individual level.</span>
4 0
3 years ago
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