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kakasveta [241]
3 years ago
13

The mass extinction occurring today differs from those that occurred in the past because

Biology
2 answers:
Harman [31]3 years ago
5 0
The mass extinction occurring today differs from those that occurred in the past because it is due mainly due to the actions of one species. The species in question is man since man's activities has resulted in such things as global warming which have vastly affected the earth's environments and the living conditions of other species.
ahrayia [7]3 years ago
3 0
The main reason for the difference in the mass extinction occurring today and previously is the pace of the current extinction. The extinction is taking place globally and involves hundreds of species at the same time. In less than 50 years, we have lost numerous species. In contrast to this, previously during the mass extinction, only a few species were lost, and other managed to survive. But, not the status is opposite due to the magnitude of the extinction. 
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1)Most of the food we eat can be influenced by whom?<br><br> 2)Food choices come from what?
Fantom [35]

Answer:

1) Hunger, savor, appetite. Three main biological reasons why we eat. Also, the economic ability to pay for the food. And the fisical capability to go and buy food, to cook.

2) Our physiological needs are the main reason why we choose food. People need energy to survive.

Everyone would like to have the possibility to eat what he wants. But food choices depend on the financial situation, social class, and preferences.

That is why poor people or people who have less money to spend on food, often eat food that can feed more people but it doesn’t have nutritional values. When people have money, they immediately have a wider spectrum of groceries that can choose from.

Explanation:

Savour is equal to enjoying. When people are not hungry they are happier. We choose what to eat depending on the look, taste, smell, texture. As sweets smell good, people consider them the most attractive food. Food is not just the source of nutrition, it is also the source of satisfaction.

5 0
4 years ago
Most of the water absorbed by the plant enters through the
gavmur [86]
Through the roots which soak up the water from surrounding soil
4 0
3 years ago
Describe the steps in transcription that require complementary base pairing.
nalin [4]

Answer:

Explanation:

Transcription takes place in nucleus in the presence of the enzyme RNA polymerase.

During transcription, the code present in DNA gets transcribed into the code in mRNA.  (messenger RNA)

RNA even though is a single stranded shows base pairing.

The pre-mRNA gets created from the DNA.

DNA has two strands, one of these strands acts as coding and another non coding strand.

The DNA shows base pairing with AGTC.   [A-Adenine, G- Guanine, T-Thymine and C- Cytosine]

Whereas mRNA base pairing with AGUC.  [ U- Uracil ]

Here in mRNA, instead of thymine, uracil gets paired.

According to base pairing of coding strand/sense strand of DNA, complementary bases pairs in 5'---->3' direction in mRNA.

The mRNA created looks exactly like the non-coding strand/sense strand of DNA except instead of thymine, uracil gets replaced.

The pre-RNA undergoes splicing, capping and tailing to form mature mRNA.

5 0
3 years ago
What best describes a result of the hydrogen bonding between water molecules
makvit [3.9K]
The hydrogen bonding creates a dipole between the H and O atoms where the O "hogs" most of the protons 
6 0
3 years ago
Why do mountaineers become breathless as they reach high altitudes?
garik1379 [7]

Answer:

C.  Oxygen concentration decreases as altitude increases

Explanation:

Higher altitudes have lower levels of oxygen and decreased air pressure.

3 0
3 years ago
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