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dem82 [27]
3 years ago
14

The behavior of an organism is influenced by both internal and external factors. How might a bear be influenced by external fact

ors in its environment? A. A decrease in the number of fish causes bears to start consuming more plants. B. An increase in hunting causes bears to stay in covered areas and avoid humans. C. A decrease in temperature causes bears to look for food during the day instead of at night. D. all of these
Biology
2 answers:
Alexeev081 [22]3 years ago
4 0

Answer:

D. all of these

Explanation:

I just got it right in study island (:

dybincka [34]3 years ago
4 0

Answer:

it's D

Explanation:

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A is the answer ur welcome for helping u
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3 years ago
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Do you think true water-conducting tissue is a derived character of either embryophytes or green algae? Why or why not?
ludmilkaskok [199]

Answer:

i think true water-conducting tissue is a derived character of green algae?

Explanation:

WHY?

Many characteristics of land plants also appear in algae like both are multi cellular, euks, photosynthetic autotrophs so are brown, red, and certain green algae, plants have cell walls made of cellulose and so do green algae

However, charophytes are the only present day algae that share these traits with land plants

1.Rings of cellulose-synthesizing proteins (circular rings of proteins in plasma membrane that make cellulose of cell wall)

2.Structure of flagellated sperm

3.Formation of a phragmoplast ( group of microtubules known as phragmoplast formes b/t daughter nuclei of a dividing cell, giving rise to a cell plate making cross wall that separates the daughter cells)

Comparisons of both nuclear and chloroplast genes point to charophytes as the closest living relatives of land plants

Land plants are not descended from modern charophytes, but share a common ancestor with modern charophytes

WHY NOT?

The origin of embryophytes, as these multicellular plants arose and conquered the land, was a pivotal event in the history of life on earth. Without embryophytes, there would be no animals or humans surviving on the land portion of our planet. The provide food, habitat, energy, oxygen, protection, and numerous vital other functions for the world's creatures. Human beings also benefit from the aesthetic beauty, medicines, and innumerable products derived from these diverse plants.

8 0
3 years ago
After mitosis in animals, cytokinesis takes place. What happens during cytokinesis? The chromosomes line up in the middle of the
Marysya12 [62]
Little confused on the question but if I am suppose to match the question with one of the statements I would choose that
“The cell membrane pinches in to form two new cells.” - what happens during cytokinesis.
4 0
3 years ago
How many years did Wegener revise his theory? A.5 B.2 C.30 D.7
IRISSAK [1]
The answer to this question would be C.
3 0
3 years ago
Surfactant:
BARSIC [14]

Answer:

The correct answer will be option-D

Explanation:

Pulmonary Surfactant is a complex substance produced by the pneumocytes epithelial II cells in the alveolar sac.

The surfactant is composed of the proteins and lipids which plays a role in keeping alveoli open by reducing the surface tension formed between the air and liquid.

The surfactant act by forming a monolayer surface film which helps reduce the surface tension.

Thus, option-D is the correct answer.

3 0
3 years ago
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