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klio [65]
4 years ago
13

In any food chain or web, the original source of energy is _______. the sun. Earth. the producers.

Biology
1 answer:
AfilCa [17]4 years ago
8 0
The sun because of photosynthesis in plants, then herbivores who eat plants then the carnivores who eat the herbivores who ate the plants.
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Suppose a particular glacier covers 100 km^2, and it loses 30 cm of depth in a decade. Approximately what volume (km^3 ) is lost
meriva

Answer:

0.03 km^3

Explanation:

First convert the 30 centimeters into kilometers. This will give you 0.0003 km because 1 km is 100,000 cm. Next multiply 100km^2 by 0.0003km which will give you your answer or 0.03 km^3.

6 0
3 years ago
Can someone answer this?
Ede4ka [16]
I’m pretty sure it’s A.
8 0
4 years ago
You are asked to culture an unidentified sample of animal tissue. You notice that the cells seem to fail to exhibit density-depe
Step2247 [10]

Answer:

The correct answer is a cancerous tumor.

Explanation:

Density-dependent inhibition refers to the phenomenon in which the crowded cells stop proliferating. In the process, the group of cells present in a region force competition for space, nourishment, and growth factors. Thus, when the cells are clumped together, they receive the signals to stop dividing further. Thus, in density-dependent inhibition, when the density is high no division of cells takes place.  

Density-dependent inhibition is a process in which the growth of the cells is restrained to a specific limit of density, after that the growth gets prevented, probably due to cell-cell contacts. On the other hand, the tumor cells generally do not possess density-dependent inhibition, due to this, the cancer cells show unlimited growth without getting ceased. Therefore, in the given case, the source of the tissue sample is primarily a cancerous tumor.  

4 0
4 years ago
When NADH donates electrons to protein complex 1 (embedded in the mitochondrial membrane) during respiration, protein complex 1
Goshia [24]

Answer:

Electron carriers of the electron transport chain

Explanation:

NADH reduces the electron carrier by donating an electron, releasing NADH+.

4 0
3 years ago
Why are scientists concerned about invasive species?
Grace [21]

Answer:

They can crowd out our native species

Explanation:

These invasive species can cause native species to become extinct and/or endangered

5 0
3 years ago
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