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fiasKO [112]
2 years ago
5

Problem attached below. A B C D

Biology
1 answer:
harkovskaia [24]2 years ago
7 0
Im not sure if this is right or not but i think it might be C.

Hope its right!!!!
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Why are chemotherapeutic agents that work on the peptidoglycan cell wall of bacteria a good choice of drug?
yanalaym [24]

Answer:

d. Humans and other animal hosts lack peptidoglycan cell walls.

Explanation:

Humans and other animals lack cell walls. Bacterial cells have peptidoglycan cell walls around them. The absence of cell walls in the cells of human and other animal host ensures that these cells are not affected by the drugs that target the peptidoglycan cell walls to kill or slow down the growth of the bacterial pathogen.

This makes the drugs specifically target the bacterial cells only while not affecting the host cells. If a drug would target a component present in cells of both the pathogens and hosts, the host cells would be most likely to be harmed by the drugs.

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3 years ago
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What is the closest relative of canis lupus
s2008m [1.1K]
<span> Canis familiaris is the closest relative of Canis lupus. </span>
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3 years ago
A researcher claims that all living cells must be able to synthesize proteins in order to maintain homeostasis and perform basic
Vesna [10]

Answer: Option B) Nuclei house the DNA, which is the blueprint for proteins. Cell types I, II, and III can synthesize proteins.

Explanation:

All the genetic information that determines the traits expressed in an organism are loaded up within the DNA sequence. Hence, several genes that codes functional proteins are derived from the DNA, making DNA a blueprint for protein synthesis.

Thus, Cell types I, II, and III with DNA can synthesize proteins.

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3 years ago
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What description best explains why viruses can become more pathogenic to host that were not affected by the virus before?
ANEK [815]

Answer:

New cells are naive to the infectious cells who attack it or they are not well prepared to deal with the different scenarios. But, the cells who are attacked before has the set or sequence of the viral or bacterial genome strand been identified by them, which leads to more safety or protection from these foreign bodies.

Explanation:

  • Mechanism To attack a host cell:

The viruses and other infectious material enters and attacks the host cell, by breaching its membrane wall and installing or leaving a gene of its own inside the cell. Which then combines with the genome of the cell and it goes through the process of replication, translation etc,along with the host cell machinery. Which then spreads the specific gene strand more in the environment

  • <u>Camouflage obtained by the infectious cell to hide it self:</u>

After the genome enters the host cell at first it does not recognizes the strands or foreign cells, as they cover there body with a camouflage sort of membrane and they look more like the body cells.

  • <u>Reactions by the host cell and as a whole the body:</u>

The organisms detects the genome of the infections cells or strand, as they store the data about it in its server or database. As if the next time they were under attack then precautions will be there by the host cell to deal with it.

As for the cell who are never attacked before will be less safe to deal with these foreign bodies.

5 0
3 years ago
Cutting down forests changes the populations of more than trees. Imagine the organisms that lived in this forest. After the tree
Alex_Xolod [135]

Answer:

<em>Food and shelter are the most likely limiting factors in this case.</em>

Explanation:

In a forest, the huge trees act as a source of shelter for the animals that live in that habitat. It protects the animals from the heat of the Sun and extreme cold conditions.

The tress in the forest are the primary source of food for almost all the organisms that live in the forest. Cutting down trees will lead to food scarcity for the animals which inhabit that forest. As a result, the animals will either have to migrate or they will become die due to lack of food.

Hence, food and shelter are the limiting factors in this case.

6 0
2 years ago
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