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torisob [31]
3 years ago
7

Why is it hard to say whether viruses are alive or not

Biology
1 answer:
MissTica3 years ago
8 0
"Viruses straddle the definition of life. They lie somewhere between supra molecular complexes and very simple biological entities. Viruses contain some of the structures and exhibit some of the activities that are common to organic life, but they are missing many of the others. In general, viruses are entirely composed of a single strand of genetic information encased within a protein capsule. Viruses lack most of the internal structure and machinery which characterize 'life', including the biosynthetic machinery that is necessary for reproduction. In order for a virus to replicate it must infect a suitable host cell".
From The Bacteriophage T4 Virus
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How do nucleotides and hydrogen bonds affect the structure of DNA?
melisa1 [442]
This is the structure of DNA and nucleotide is the phosphate group with sugar (the pink one ) and base that are 4 different bases : A, T, C, G and between these bases we have hydrogen bonds  and you can see that always it like : C≡G
A=T :))) i hope that helps :)))https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiawYOO7-...
4 0
3 years ago
Carine went to the doctor for a physical. Her blood pressure was 80/50. What describes Carine’s condition, and what is the most
Korolek [52]

Hello!! Since there is no mention of weight in the question, I would assume that she is pregnant. Whenever someone's blood pressure is low, it is referred to hypotension. Whenever someone's blood pressure is high, it is referred to hypertension. I would say your best answer is A - She has hypotension because she is pregnant. I hope that is the right answer you are looking for. Have a great day!! :)

3 0
3 years ago
Read 2 more answers
What do the polar bears, reindeer, and shrubs that live in a single area make up?
adoni [48]

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population

Explanation:

6 0
2 years ago
What are different examples of lipids? 1. DNA, RNA, ATP 2.monosaccahrides, starch, cellulose 3.triglycerides, waxes, steroids, p
pychu [463]

Answer:

I think its 4

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3 0
3 years ago
Which of the following is not a sign of possible pest infestation?
Brrunno [24]

The right answer is smelly garbage.

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By cons other proposals are signs and tools for infestation (torn packaging with food leaking out, dead insect bodysuits, feathers, and fur).

5 0
3 years ago
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