Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?

Biology

1 answer:

scoray [572]3 years ago

4 0

Answer:

Alexander fleming

Explanation:

but I am not very clear

You might be interested in

Describe Two types of drugs and the negative impact the abuse of of these drugs can have on a person health

love history [14]

club drugs: lsd cause rapid heart rate

hallucinogens: bath salts causes hallucinations and can be dangerous to self and others

5 0

4 years ago

Read 2 more answers

In your own words define what "Social Darwinism" is. How did this theory allow or promote imperialism?

Yuliya22 [10]

"Social Darwinism<span> is a modern name given to various theories of society that emerged in the United Kingdom, the United States, and Western Europe in the 1870's, and which are claimed to have applied biological concepts of natural selection and survival of the fittest to sociology and politics", so, in therory, it would allow AND promote imperialisim, as many people are not within the same level of society.</span>

7 0

4 years ago

Explain the processes of photosynthesis and cellular respiration

Anuta_ua [19.1K]

Explanation:

photosynthesis converts carbon dioxide and water into oxygen and glucose.glucose is used as food by the plant and oxygen as a by-product.

cellular respiration convert oxygen and glucose into water and carbon dioxide water carbon dioxide a byproduct and ATP is energy that is transformed from a process.

6 0

3 years ago

Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma

Mama L [17]

<h2>The correct answer is : C.</h2>

Explanation:

According to the question, mating between two populations of Rhagoletis produce hybrid flies.
This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.

8 0

3 years ago

Which compartments make up the cardiovascular system

Ronch [10]

I'm not sure what you mean by "compartments", but the cardiovascular system consists of the heart, blood vessels, and approximately 5 liters of blood.

4 0

3 years ago