All categories

3 years ago

PLZ HELPPPPPPP!!!!!!!

Biology

1 answer:

LenKa [72]3 years ago

4 0

Answer:

so the answer is c

Explanation:

A staircase is an example of the inclined plane simple machine. A spiral staircase, however, is categorized as a screw.

You might be interested in

A very short period of extremely rapid expansion, called , is thought to have occurred when the universe was about 10-38 second

adell [148]

Inflation is a sudden and extremely rapid expansion of the universe that occurred in a tiny fraction of a second during the universes's first second to existence. More specifically, inflation is thought to have occurred as the strong and electroweak forces, froze out, from the GUT force when the universe was a mere 10-38 second old.

6 0

4 years ago

Which of these is a disadvantage of hydropower?

Cerrena [4.2K]

Answer:

Fish populations can be impacted if fish cannot migrate upstream past impoundment

dams to spawning grounds or if they cannot migrate downstream to the ocean. Upstream fish passage can be aided using fish ladders or elevators, or by trapping

and hauling the fish upstream by truck. Downstream fish passage is aided by

diverting fish from turbine intakes using screens or racks or even underwater lights

and sounds, and by maintaining a minimum spill flow past the turbine.

Hydropower can impact water quality and flow. Hydropower plants can cause low

dissolved oxygen levels in the water, a problem that is harmful to riparian

(riverbank) habitats and is addressed using various aeration techniques, which

oxygenate the water. Maintaining minimum flows of water downstream of a

hydropower installation is also critical for the survival of riparian habitats.

Hydropower plants can be impacted by drought. When water is not available, the

hydropower plants can't produce electricity.

New hydropower facilities impact the local environment and may compete with other

uses for the land. Those alternative uses may be more highly valued than electricity

generation. Humans, flora, and fauna may lose their natural habitat.

Hope This Helps! Have A Nice Day!!

3 0

4 years ago

The failure of the human body to effectively maintain dynamic equilibrium can result in?

Setler [38]

It can result in either hypothermia (too cold) or hyperthermia (too hot) and eventually leads to death

3 0

3 years ago

The processes of diffusion and active transport are both used to * break down molecules to release energy move molecules into or

luda_lava [24]

Answer:

move molecules into or out of cells of the body

Explanation:

Majorly, there are two types of transport used by living cells. These are; passive and active transport. Passive transport involves the movement of molecules down a concentration gradient without the need for energy (ATP) input. Example is DIFFUSION AND OSMOSIS.

On the other hand, active transport is a type of transport that moves molecules against a concentration gradient (low to high) with the aid of energy input (ATP). Example is sodium-pottasium proton pump.

Although there are obvious differences between these two processes (diffusion and active transport), but they both MOVE MOLECULES INTO OR OUT OF CELLS OF THE BODY.

5 0

3 years ago

What are the reactants in fermentation?

Anvisha [2.4K]

The reactant in fermentation is the simple sugar or monosaccharide glucose. The process of fermentation takes place with the absence of oxygen. It produces ethyl alcohol and energy for ethanol fermentation, while in lactic acid fermentation, lactic acid and energy are produced.

3 0

4 years ago