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kvv77 [185]
3 years ago
10

HELP PLZ

Biology
1 answer:
Basile [38]3 years ago
8 0
The answer is d. i think
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kipiarov [429]

Answer:

Nitrogen

Explanation:

It can change in the Atmosphere or on land:)!

3 0
3 years ago
What major structure brings oxygen and nutrients to the cells and carries away waste?
liubo4ka [24]
<span>The major structure that supplies the cells with nutrients and removes their waste is the circulatory system. The circulatory system is composed of the heart, the blood vessels going from and back to the heart, and the blood that travels inside them. The blood vessels that carry nutrient and oxygen-rich blood to the cells are arteries. They become the thinner arterioles, and then the thinnest capillaries. With the exception of the pulmonary arteries, which carry non-oxygenated blood from the heart to the lungs, all arteries carry oxygenated blood. The capillaries disburse the nutrients and oxygen to the cells and pick up wastes and carbon dioxide, form into the thicker venules, then to form veins, which lead back to the heart (with the exception of the pulmonary veins, which carry oxygenated blood from the lungs to the heart). Veins also differ from arteries in that veins have valves to prevent blood from flowing backward.</span>
6 0
3 years ago
What part of the scientific method is this: Because human subjects are difficult to study, laboratory rats were used. One group
astra-53 [7]
Its the experiment part where you test the hypothesis
4 0
3 years ago
What type of fossils would be least likely to be found in Antarctica? a. tropical plants c. sharks b. trilobites d. hominids
qaws [65]

Answer:

I believe the correct answer would be letter <u>D</u>. or <u>hominids</u>

Explanation:

hopefully this is helpful, have a nice day :)

-cherry

7 0
3 years ago
Read 2 more answers
Which of the following species lived in huts constructed of mammoth bones?
Vaselesa [24]

Answer:

b. <em>Homo neanderthalensis</em>

Explanation:

<em>Homo neanderthalensis </em>are extinct species of the Homo genus which lived in Eurasia until 40000 years ago. They initially lived in Europe and then migrated to Central and Southwest Asia. Compared to modern humans, they had shorter legs and bigger bodies.

They have been known to construct huts out of mammoth bones. Archaelogists discovered a Neanderthal hut structure made of mammoth bone which is considered to be 44000 years old. This structure was 26 feet wide and mostly used for domestic purposes. Previously <em>Homo neanderthalensis </em>were considered primitive creatures who lived in natural caves but after this discovery it has been accepted that they were also advanced.

6 0
3 years ago
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