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alexira [117]
4 years ago
10

In 2004, tests were performed on the San Carlos Reservoir in Arizona to determine levels and distributions of some toxic metals.

Cores of sediment were sampled and tested, and the scientists found that there were two time periods represented in the sediment by larger levels of copper than is recommended in sediment quality guidelines. What scientific investigation might these results lead the scientists to next?
Biology
2 answers:
S_A_V [24]4 years ago
5 0

Answer:

an investigation on how copper affects aquatic life in the reservoir

Explanation:

It was observed that there were two time periods represented in the sediment by larger levels of copper than is recommended in sediment quality guidelines at the San Carlos Reservoir in Arizona

The next things that will be on their mind is to investigate on how copper affects aquatic life in the reservoir

ohaa [14]4 years ago
4 0

Answer:

a study on how copper affects aquatic life in a reservoir

Explanation:

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Akimi4 [234]

Immunity may be defined as the body's ability to produce cells that inactivate foreign cells or substances.

<h3>What is the significance of best immunity?</h3>

The significance of the best immunity shields us by first constructing a barrier that prevents those invaders, or antigens, from entering the body.

The body's ability to produce the "fight or flight" response is stimulated by the sympathetic nervous system.  The body's ability to regulate homeostasis through feedback loops by maintaining the process of homeostasis.

Therefore, immunity may be defined as the body's ability to produce cells that inactivate foreign cells or substances.

To learn more about Immunity, refer to the link:

brainly.com/question/6612564

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6 0
2 years ago
The temperate grasslands, also called prairie, feature hot summers and cold winters. Rainfall is uncertain and drought is common
weeeeeb [17]
B) Prairie grasses have narrow leaves.

Took the quiz it's right.
8 0
3 years ago
What trait of an ATP molecule enables it to store energy for use by cells
cluponka [151]
Because ATP is phosphate-phosphate bond so ATP can store energy for use by cells :)))
i hope this be helpful 
5 0
3 years ago
Ouabain is a specific inhibitor of the active transport of sodium ions out of the cell and is therefore a valuable tool in studi
Kay [80]

Answer:

1. Part A: No

2. Part B: Yes

3: Part C : Yes

4: Part D : No

Explanation:

1) Part A: Facilitated diffusion of glucose into a muscle cell:

No; sodium ion co - transport is required for active transport of glucose but not for facilitated diffusion of glucose

2) Part B: Active transport of dietary phenylalanine across the intestinal mucosa:

Yes; co - transport of sodium ions drives the inward movement of amino acids and can only occur if sodium ions are actively pumped back out again.

3) Part C: Uptake of potassium ions by red blood cells:

Yes; uptake of potassium ions can occur only via a pump that couples the inward pumping of potassium ions to the outward pumping of sodium ions.

4) Part D: Active uptake of lactose by the bacteria in your intestine

No; active uptake of sugars and amino acids in bacteria is driven by a proton gradient.

3 0
3 years ago
Why do plant cells have a cell wall and plant cells don’t?
Minchanka [31]
So animal cells can have various shapes, but plant cells only havethe shapes of their cell walls. That's nice for plants, because it gives them the ability to grow up and out, where they can get lots of sunlight for making their food.

In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants tohave rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change siz
Exactly why plant cell have wall and animal cell don't :-Cell walls are supporting structures that help the plant to have a fixed shape and protect it from injury. Other than that, it helps to keep the plant turgid so that it can stay firm and upright. Because when it enters a high water potential solution, as water moves in, the water exerts turgor pressure on the cell wall and the cell wall thus exerts an opposing pressure to keep water out. Hence cell wall is needed for the plant.

On the other hand, animal cells do not need to keep the structures, as they have the skeletal system to protect the organs and cushion them against any external Injuries.


This was the all information I had thank you.
5 0
4 years ago
Read 2 more answers
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