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777dan777 [17]
2 years ago
15

What type of infectious agent is

Biology
1 answer:
Elodia [21]2 years ago
5 0

Answer:

Bacteria.

Explanation:

Virus, Parasite, and Fungi all use a host for pure personal gain. Some strains of bacteria are beneficial, and are ingested regularly in the form of probiotics.

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ehidna [41]
Answer: D

Explaining:
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3 years ago
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Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. A scheme of blood circulation
Soloha48 [4]

Answer:

The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.

Explanation:

In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.

Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.

7 0
2 years ago
Genetic engineering is the process of manipulating genes for practical purposes. Today, scientists have genetically engineered m
konstantin123 [22]

Your answer would be C because A affects the natural environment and can cause harm to it, B would affect the surrounding animal population and cause imbalances in biodiversity if they are not able to eat the foods they are used to, and D is not much of a benefit since you are losing the flavor that is naturally in the plants.

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3 years ago
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I may need some help on a lot of these questions
stellarik [79]

Answer:

number three is ghe real answer

4 0
2 years ago
Name the cell that performs phagocytosis.​
olga55 [171]

Answer:

Thats WBCs cell which perform phagocytosis

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