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Alex17521 [72]
3 years ago
8

What was Anton van leeuwenhoek’s contribution in the devolopment of cell theory?

Biology
2 answers:
Law Incorporation [45]3 years ago
7 0
 use of a microscope containing improved lenses that could magnify objects almost 300-fold, or 270x. Under these microscopes, Leeuwenhoek <span>found motile objects. </span>
zaharov [31]3 years ago
6 0

Answer:

Anton van leeuwenhoek with the help of the microscope observed the stagnant water. He observed protozoans and at that time he named them "Animalcule" . He observed bacteria, sperm cells, blood cells, rotifers, and much more.  He was the first to observe live microorganisms.

He did important observations such as the life cycle weevils, fleas and mussels, and concluded that they developed from tiny eggs refuting arguments of spontaneous generation

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Which of these pollutants is biodegradable?
vfiekz [6]

Answer:

Food waste

Explanation:

Food waste is an organic compound, unlike the other choices. Organic compounds are biodegradable because living organisms, such as decomposers, have evolved mechanisms of breaking down these large carbon-based compounds/polymers into smaller molecules for energy. Food waste is therefore easily recycled into the environment.

The others do not have naturally occurring organisms to break them down or reduce them. They would, therefore, accumulate in the environment. This is exactly what is happening to plastc pollution. Accumulation of plastic in the environment is due to fact that they are not broken down into simpler molecules by any naturally occurring bacteria or organisms in the environment.

7 0
3 years ago
Most direct evidence of evolutionary relationships between animal species comes from comparing
kumpel [21]
The  answer is DNA. I am very sure of this .
7 0
3 years ago
Why do you think it is important to study the science of human life (biology) in psychology
barxatty [35]

Answer:

to understand the human and animal behaviour

Explanation:

By looking at the biological bases of human behavior, psychologists are better able to understand how the brain and physiological processes might influence the way people think, act, and feel.

7 0
2 years ago
A woman with type O blood (OO), which is a recessive condition, has a child with a male with type AB blood (AB). What are the po
AveGali [126]

Answer:

Phenotypes of offsprings: Type A, Type B

Explanation:

This question involves a single gene for blood group in humans. The ABO blood group system consist of three alleles: A, B, and O. A and B are dominant over O but co-dominant to one another.

If a woman with type O blood (OO) has a child with a male with type AB blood (AB) i.e OO × AB, the following gametes will be produced by each parent:

OO - O

AB - A and B

Using these gametes in a punnet square (see attached image), the offsprings with the following genotyoes will be produced: AO (2), BO (2)

AO - phenotypically type A

BO - phenotypically type B

Hence, a type A and type B blood group offsprings will be produced.

3 0
3 years ago
Blood is one of the most important tissues in the body and without it, we could not survive, Blood and other fluids carry oxygen
Svetlanka [38]

Answer:

Blood is not a tissue, so it should be false.

Explanation:

6 0
3 years ago
Read 2 more answers
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