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ss7ja [257]
2 years ago
6

HI

Biology
1 answer:
mamaluj [8]2 years ago
8 0

Answer:

The continents were once connected as one landmass.

Explanation:

This did happen it's called Pangea. There were similar fossil records in different continents.

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What role does lightning play in the nitrogen cycle?
mixer [17]
Atmospheric Fixation. The enormous energy of lightningbreaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming huge nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
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What is the difference between plant ecm and mammalian ecm?
Rudiy27
ECM is the extracellular matrix, or the set of extracellular molecules secreted by cells with the purpose to support surrounding cells. In plants the cell wall is the ECM and in mammals ECM can be in the form of fibrils and may constitute a significant portion of the bulk of the organism and it also referred as connective tissue. 
3 0
2 years ago
(PLEASE ANSWER ASAP, WILL MARK BRAINLIEST)
noname [10]

The answers include the following:

  • Arrow F represents transpiration.
  • Matter is conserved through the process in which carbon from carbon dioxide leaves and enters into the atmosphere.
  • This process is a recycling of carbon in the carbon cycle because it involves it travelling the atmosphere into organisms in the Earth in a repeated manner.

<h3>What is Carbon cycle?</h3>

This refers to the  biogeochemical cycle in which carbon is  reused through different types of mechanisms and actions.

This process involves carbon travelling the atmosphere into organisms in the earth in a repeated fashion through methods such as respiration, transpiration etc which is how recycling works.

This is therefore the reason why it can be regarded as the process which involves matter and conservation and recycling.

Read more about Carbon cycle here brainly.com/question/12005308

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7 0
1 year ago
Infection occurs when the host is exposed to pathogens. what type of pathogen uses the cell's metabolism, and replicates itself
vladimir1956 [14]

Answer: Infection occurs when the host is exposed to pathogens. virus uses the cell's metabolism, and replicates itself while destroying the cell or changing the cell's genetic makeup.

Explanation:

  • A virus is a miniscule pocket of protein that contains genetic material.
  • Viruses pose a considerable challenge to the body’s immune system because they hide inside cells.
  • This makes it difficult for antibodies to reach them. Some special immune system cells, called T-lymphocytes, can recognise and kill cells containing viruses, since the surface of infected cells is changed when the virus begins to multiply.
  • Many viruses, when released from infected cells, will be effectively knocked out by antibodies that have been produced in response to infection or previous immunisation.
  • Antibiotics are useless against viral infections.  So antiviral drugs work differently to antibiotics, by interfering with the viral enzymes instead.

Hence virus are the pathogen that use the cell's metabolism. And replicate itself while destroying the cell or changing the cell's genetic makeup. viruses are so simple that they use their host cells to perform their activities for them

Learn more about virues :

brainly.com/question/17173059

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6 0
1 year ago
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