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Len [333]
3 years ago
10

Where do convection currents occur

Biology
1 answer:
Rus_ich [418]3 years ago
4 0

Answer:

C. in areas with different air pressures

Explanation:

"Convection currents occur within:

The geosphere – plate tectonics

The atmosphere - wind

The hydrosphere - ocean currents"

Hope this helps u.

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How are viruses different from bacteria
Butoxors [25]

I believe the correct answer is that viruses are not cells while bacteria are cells with organelles.

<h2>Explanation:</h2><h3>Viruses</h3>

Viruses can simply be explained as genetic materials enclosed in capsules that protects them from the immune system.

Viruses need a host to survive since they lack a mechanism to replicate in meaning they are obligate intracellular organisms.

Reproduction of viruses is through attaching their DNA or RNA into the machinery of the host that replicates them as part of the normal DNA of the cell.

They are the smallest living organisms and cannot be seen microscopically.

They cannot be infected but rather can infect bacteria

They have a capsid that protects the viral material and also contains the receptors attachments that are able to attach to the specific sites which they are infecting. Some of them have an extra layer of a membrane that is called an envelope that further protects the viruses from their hostile environment

They are treated by antiviral medications that affects their replication on normal cells.

They are pathogenic by destroying the cells they enter after successfully replicating their genetic material.

They can either have DNA or RNA but never both.

<h3>Bacteria</h3>

They are cellular prokaryotes with cell organelles that keeps them functional

They can be obligate intracellular organisms or they can survive outside the cell without any problem depending on the particular species of the bacteria since they have cell organelles that can function.

Bacteria reproduce through a process called binary fission where the cell organelles just double up and the cell pinches into 2 different sections with equal distribution of genetic materials forming 2 different cells.

They can be infected by types of viruses called bacteriophages that use the hosts nucleoid to replicate.

They have a cell membrane and a cell wall which encloses the inner contents of the bacteria and also protects the bacteria from the immune system.

They are treated by antibiotics such as β-lactam antibiotics that destroys their cell wall making it porous and the cell eventually dies.

They do not enter the host for reproduction but rather they kill the host through toxins such as toxin A and toxin B

They do not have a nucleus but have the nucleoid that contains the DNA of the bacterium.

Level: High School

Subject: Biology

Topic: The cell

4 0
3 years ago
Read 2 more answers
20 minutes of moderate cardiovascular exercise releases bdnf. <br> a. True <br> b. False
Sauron [17]
The answer is true letter a
7 0
3 years ago
Why is it important for the chromosomes to condense during mitosis?
likoan [24]

<u>Answer</u>:

It is important for the chromosomes to condense during mitosis to facilitate chromosome movement.

<u>Explanation</u>:

The chemical called colchicine is found to be used during the process of mitosis, so as to freeze the cells, which can stop or prevent the movement of the chromosomes. This process is also essential for the faithful genome replication or transmission to those daughter cells. During the interphase cell division occurs but during the prophase the cell condensation is found to be happening. Before the process of the mitosis chromosomes are allowed to move and during this entangled and breaking were also noticed.

3 0
3 years ago
what are density Independent limiting factors? provide examples and describe how they would affect a population.​
MakcuM [25]
A fire is one because it doesn’t matter if zero squirrels are in the forest or none fire will still burn with or without the squirrels
5 0
2 years ago
A field in a database may contain a. all the collected facts about many items or people. b. an area marked with boundaries. c. o
evablogger [386]

Answer:c. one fact about a person or an item.

Explanation:

Database table is is made up of fields. A field is simply a data structure for a type-single piece of data.

Fields can be organized into what is known as records, which is one that contain all the information that (groups of the) table entails relevant to a specific entity in context.

6 0
3 years ago
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