BIOLOGY MIDDLE SCHOOL

-Why are the necessary to have a healthy ecosystem?

Answers

Answer 1
Answer: It is necessary to have a healthy ecosystem because all our food and nutrients come from plant and animals. If we don't have that than we can't get our energy. There are also pollinators like bees or humming birds that provide plant life. Pollen is moved by these pollinator and make "seeds". A lot of our food is dependent on this co-evolution. When plants are unhealthy animals would sooner or later get the same treatment. Herbivores start to die. Then, there is no food to provide for the carnivores. The food pyramid or cycle breaks. Humanity starts to fade away. Society crumbles...
'Inhales' wow

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HIGH SCHOOL

What homeostatic process requires energy to move particles across the plasma membrane

Answers

Active transport.

Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.

Hope this helps!
COLLEGE

All the gametes of isogamous organisms are genetically identical.

True
False

Answers

Answer:

False

Explanation:

Gametes are formed by meiotic division, and classified by shape, size and activity. In some species they are undifferentiated, that is, isogamous, resembling, but not identical, regardless of gender. However, most species have heterogeneous gametes (anisogamy), differentiated by morphological, dimensional and mobility aspects.

The answer is False.

HIGH SCHOOL

A dive instructor begins his lesson on the shore. As he guides his students out into the water,what zone are they in?

Answers

The dive instructor and the divers are in the photic zone or the sunlight zone as they approach the water. It is the 1st layer of the ocean that has a depth of 0-200 meters. Sunlight can penetrate through this area of the ocean supporting light-dependent sea plants and animals. Humans can thrive within this zone provided that they wear special gears like in scuba diving. 

PLATO USERS

Intertidal Zone 10 m (33 ft)

Sublittoral Zone 200 m (660 ft)

Hadal Zone 10,911 m (35,797 ft)

Bathyal Zone 6,000 m (19,686 ft)

[ a ] the sublittoral zone or the shallowest bathyal zone

[ b ] the intertidal zone or the deepest hadal zone

[ c ] the oceanic zone or the deepest intertidal zone

[ d ] "The Intertidal Zone Or The Shallowest Sublittoral Zone."

HIGH SCHOOL

Why does a cell spend most of its time in prophase

Answers

A cell spends most of its time in prophase because in prophase, the cell's chromatins are condensing and coiling into chromatids.  But a cell spends more time in interphase than prophase.  
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