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Dmitriy789 [7]
3 years ago
11

What is a model..???

Biology
2 answers:
vazorg [7]3 years ago
5 0
What kind of model there is many kinds
lutik1710 [3]3 years ago
3 0

Answer:

two definitions 1 a person trying in something to show pepole like dresses

2 a modle in science so scienntist can see and go wow this is what it is like the dinosur museum the t rex is a modle of how it would look like

Explanation:

hope it helps keep on questioning on lol

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7. The escape of gas and rapid cooling leave holes in
vekshin1

Answer:

intrusive i think

Explanation:

7 0
2 years ago
1. A series of events in which one organism obtains energy by eating another organism is called
Natalija [7]

Answer:

B. a food chain

Explanation:

Food chain: a hierarchical series of organisms each dependent on the next as a source of food.

6 0
2 years ago
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
What is the theory that states organisms best adopted for an environment are more likely to survive and reproduce?​
kondaur [170]

Answer:

natural selection

Explanation:

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

4 0
3 years ago
A ____?___ allele exhibits its phenotype when it is present on both the chromosomes.
faltersainse [42]
A recessive allele is shown in the phenotype 
3 0
3 years ago
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