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Darina [25.2K]
3 years ago
5

Which of these describes a difference between viruses and cells?

Biology
1 answer:
Lerok [7]3 years ago
5 0

Answer: Cells contain protein, and viruses contain only carbohydrates. Cells reproduce independently, and viruses require a host to reproduce.

Explanation:

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Why is DNA replication important?
SVEN [57.7K]

Answer:

well with out it we won't understand dna

but heres the scientific answer

Explanation:

DNA replication allows for organisms to be reproduced from the parent.

After a sperm (from male) and egg (from female) cell have combined, they immediately start to divide. At this point, the cell is called a zygote.

In order for the cells to divide, they need DNA from the mother. They don't steal it. They just replicate it. For a cell to use DNA, it needs to be in the form of a chromosome, a tightly-packed DNA structure

DNA replication allows for organisms to be reproduced from the parent.

4 0
4 years ago
A series circuit contains a 9-volt battery, a 3-ohm resistor and a 2-ohm resistor. What is the voltage drop across the 2-
Mama L [17]

Answer: V r 2 = 3.6 V Explanation: There is a voltage divider equation for two resistors in series:

V r 2 = R 2 R 1 + R 2 V

Because you can, arbitrarily choose which resistor you designate as R 2 and the other as R 1 , you can use this to find the voltage across either resistor. In your case, you want to designate the 2 Ω resistor as R 2 :

V r 2 = 2 Ω 3 Ω + 2 Ω 9 V V r 2 = 3.6 V

8 0
3 years ago
Summarize the relationship between water, carbon dioxide, carbonic acid, bicarbonate and hydrogen
alisha [4.7K]

Answer:

Explanation:

Water reacts with Carbon dioxide to form Carbonic acid, please see equation below:

H2O (water) + CO2 (carbon dioxide) ⇄ H2CO3 (carbonic acid)

Carbonic acid is a weak acid and some of it dissociates to Hydrogen ions and Hydrocarbonate ions, please see equation below:

H2CO3 (carbonic acid) ⇄ H+ (hydrogen ions) + HCO3-

7 0
3 years ago
How do you know you exist?
Serga [27]

Answer:

through ur senses lol good question

Explanation:

8 0
3 years ago
Read 2 more answers
White blood cells left in the body after an infection that help protect against future infection are called _______. Select one:
Semmy [17]
C. B cells       
B cells make antibodies
7 0
3 years ago
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