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stiv31 [10]
2 years ago
8

Please only respond if you can help or know answers

Biology
2 answers:
Phoenix [80]2 years ago
7 0
1. I think it’s the last one but Here’s a little hint that could help? Osmosis is a diffusion of water through a selectively permeable membrane
2. Active transport
3. The second one I think but here’s something that might help, the cellular membrane is a thin flexible barrier that surrounds cell
nlexa [21]2 years ago
7 0

Answer:

A

Explanation:

A is not correct line

Its is true that cell membrane is differentially permeable or semi permeable but it doesn't mean that it donot allow any harmful substances to entre in cell . Cell has its mechanisims to protect himself from harmful chemicals . Such as cells have lysosomes.

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How does an enveloped virus gain/obtain/get its envelope?
Arte-miy333 [17]

Answer:

The envelope come from the host cell membrane as the virus leaves the host cell

Explanation:

A virus is an organism that is incapable of replicating on its own without infecting a living host. A virus consists of a genetic material (DNA or RNA) , a protein coat called CAPSID, and sometimes some viruses possess an envelope, which is an outer covering or enclosure. Viruses that possess this envelope are referred to as ENVELOPED VIRUS.

The virus lacks the ability to produce any structure, hence, they gain this envelope made of phospholipid from the cell membrane of the host they infect. During the infection cycle of a virus, a process called budding enables a portion of the host's plasma membrane to cover or encapsulate the virion cells, hence, making them enveloped in the process.

8 0
3 years ago
The ion imbalance known as ________ initially leads to ________ in excitable cells
saveliy_v [14]
Hyperkalemia, depolarization
Hope this helps.
3 0
3 years ago
9. the scale most widely used by scientists for measuring earthquakes is the __
vredina [299]

9) Richter scale

10)Seismograph

11) measurement of the amplitude of the largest wave

I do believe to are correct

6 0
3 years ago
Read 2 more answers
You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the c
kykrilka [37]

Answer:

There are no options in this question but generally a sample of DNA can be increased;

By using Polymerase Chain Reaction (PCR) technique.

Explanation:

This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.

In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.

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3 years ago
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astra-53 [7]
Transpiration is the main driver
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