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harkovskaia [24]
3 years ago
9

How is human impact on the tundra and the rainforests similar?

Biology
2 answers:
Aleksandr-060686 [28]3 years ago
6 0

Answer: a. both have been impacted by oil drilling and mining.

Tundra biome is the coldest region on the earth. These are treeless regions found in Arctic. These are found on the tops of the mountains, and rainfall is scanty in these regions. Rain forests are forests, which are found in northeastern Australia. These regions receives maximum rainfall on earth. Oil drilling and mining have threatened wildlife in tundra and rain forest ecosystem. The exploration of oil, gas and minerals by mining and drilling processes can cause physical disturbances in the natural habitat of the wildlife. The oils and gases can be poisonous for living species of these two biomes hence, negatively affects the biodiversity of these biomes.

Maurinko [17]3 years ago
5 0
Both have been impacted by oil drilling and mining.
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Can someone help match these defenitions.
luda_lava [24]

The right matches are:

1. nuclear envelope  is matched with b.

2.centriole  is matched with  a.

3.interphase is matched with j.

4.furrowing  is matched with h.  

5.anaphase  is matched with g.

6.spindle apparatus is matched with f.

7.chromatin is matched with i.

8.haploid is matched with c.

9.meiosis is matched with e.  

10.homologous chromosomes is matched with d.


Cell division consists of the formation of two or more cells from a single cell, which ensures their numerical growth. During mitosis of a cell, each daughter cell is identical to the mother cell. During meiosis, the mother cell gives two haploid daughter cells with n chromosomes, then each of these daughter cells give two n chromatid cells.

May be some word in this exercise are not very common like:

The mitotic spindle, allows chromatid migration during cell division.

The dividing groove is the invagination of the cell surface that allows the cell to divide in two.

Centriole is a specific cell element of animal cells, which form the centrosomes located at both poles of the cell.


8 0
3 years ago
In order to use a Punnett, square we must know the ___________ of an individual
egoroff_w [7]
  <span>The genotype is required for you to use a punnet square. In the construction of a punnet's square, the genotypes of both parents are required. In the three by three square, the first column shows the genetic representation of one parent and the first row shows the genotype of the other parent. The two are combined, and they yield a genetic combination of both parents, giving all the possible outcomes of the offspring's genotypes. Using the punnet's square, you can be able to identify the percentage of the offspring that will be heterozygous or homozygous.</span>
4 0
3 years ago
Read 2 more answers
A hormone attaches to a target cell at a receptor protein. What do you know about this hormone?
charle [14.2K]
So, this hormone is a non-steroid hormone.  Steroid hormones are fat soluble and can pass directly into the cell to affect the nucleus.

Non-steroid hormones bind to the receptor and trigger a chemical change within the cell without ever entering the cell, or the nucleus.

The answer is: It will not enter the nucleus
4 0
3 years ago
Which statements about the production of ATP ATP in chloroplasts are true? The production of ATP ATP in chloroplasts does not re
Lostsunrise [7]

Answer:

A proton gradient is generated by the transport of protons into the thylakoid lumen.

Protons move from the thylakoid lumen to the stroma through ATP synthase, producing ATP.

Explanation:

During photosynthesis, the environment is made acidic inside the lumen i.e. H⁺ are pumped into thylakoid lumen from stroma as a result of which more H⁺ are present in the thylakoid lumen as compared to stroma. It happens during light dependent reaction of photosynthesis. The concentration of H⁺ is already higher in lumen and transfer of more and more H⁺ from stroma increases the concentration of H⁺ even more leading to generation of a potential gradient. These H⁺ subsequently tend to move freely from lumen to stroma via "reverse pumps known as ATP synthase". The reason why these are known as reverse pumps is because pumps usually move particles from lower to higher concentration which is an active movement i.e. not natural so such movement requires energy. Naturally particles move from higher to lower concentration gradient until the concentration becomes equal on both the sides but pumps act opposite of this natural process and move particles from lower to higher concentration and utilize energy to do it. But here H⁺ are moving from higher to lower concentration which occurs naturally so ATP synthase rather than using energy tend to generate energy and this free energy is used to generate ATP from ADP & Pi (inorganic phosphate).

4 0
3 years ago
When the source of a wave is moving relative to an observer of the wave, which of the following is true?
galina1969 [7]

Answer:

Observers ahead of the wave observe an apparent increase in wave frequency  

Explanation:

This is the Doppler Effect. The frequency of a wave increases when the source approaches the observer and decreases as the source recedes.

B, C, and D are wrong. Observers behind the source notice a decrease in frequency.

4 0
3 years ago
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