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Bess [88]
3 years ago
14

How do sprouting plants exhibit positive gravitropism? A. The roots turn downward. B. The roots move horizontally. C. The leaves

face toward the Sun. D. The stems curl around supports.​
Biology
2 answers:
Natasha_Volkova [10]3 years ago
8 0

Answer:

C

Explanation:

Pavel [41]3 years ago
4 0

Answer:

The answer is C. The roots face towards the Sun

They do this to get energy.

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From which of the following does the right atrium receive blood?
olga2289 [7]

The right atrium receives blood returning from others parts of the body through the superior vena cava and the inferior vena cava.  

Explanation:

The pathway of circulation begins in the right atrium which receives the carbon dioxide-rich deoxygenated blood returning through the systemic circulation.  

The deoxygenated blood from regions superior to the heart, i.e., the head, neck, shoulder areas are collected through the superior vena cava and that from the parts inferior or lower to the heart like visceral organs, extremities, trunk, hip etc are brought through the inferior vena cava.

Both these venous systems (superior and inferior) fill the right atrium.

The right atrium then pumps the deoxygenated blood to the right ventricle via the tricuspid valve.

The right atrium is filled with blood during diastole.

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3 years ago
The total energy of motion in the particles of a substance; heat energy
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Answer:

thermal energy

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Explanation:

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3 0
3 years ago
Which process most likely enabled the formation of the early protists? A. photosynthesis B. endosymbiosis C. conjugation D. bina
natita [175]

Answer:

Answer B. Endosymbiosis

Explanation:

Early protists were first eukaryotic organisms and had several membrane bound organelles. The anaerobic protists evolved by acquiring purple bacteria. The purple bacteria have the ability to carry out aerobic cellular respiration. The endosymbiont transformed into mitochondria in due course of evolution. Similarly, the photosynthesizing protists were evolved by endosymbiosis of cyanobacteria which in turn was transformed into chloroplast during further evolution.

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A population of snakes that eat small rodents enters a new habitat. In the new habitat, there are many species of rodents, and t
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<span>Genetic variation will increase because of a new habitat and food source.</span>
5 0
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What are the parts of an eye
o-na [289]

Answer:

The sclera, or white part of the eye, protects the eyeball.

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The iris, or coloured part of the eye, surrounds the pupil.

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