Question

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BIOGENESIS
VOCABULARY REVIEW Define the following terms.
1. biogenesis
2. spontaneous generation
3. vital force
MULTIPLE CHOICE Write the correct letter in the blank.
1. One of the observations that led people to think that life could arise from nonliving things
was that
a. maggots turned into oval cases from which flies eventually emerged.
b. fish appeared in ponds that had been dry the previous season.
c. large fish developed from smaller fish, which hatched from fish eggs.
d. fish grew larger by eating other living things, such as flies.
2. The purpose of the netting in Redi's experiment was to prevent
a. maggots from leaving the jar.
b. air from leaving the jar.
c. adult flies from entering the jar.
d. bacteria from entering the jar.
3. In the experimental group in Spallanzani's experiment, the
a. broth remained clear.
b. flask contained no broth.
c. broth was not boiled.
d. flask was not sealed.
4. Spallanzani's opponents disagreed with his conclusion that microorganisms from the air
contaminated the boiled meat broth. They argued that Spallanzani
a. heated the flasks too long, killing the microorganisms in the broth.
b. heated the flasks too long, destroying the "vital force" in the air inside the flasks.
c. waited too long before he sealed the flasks after heating them.
d. accidentally contaminated the broth when he sealed the flasks.
5. In Pasteur's experiment, the function of the curved neck on the flask was to prevent
a. air from entering the body of the flask.
b. air from leaving the body of the flask.
c. solid particles from entering the body of the flask.
d. broth from spilling out of the flask.

Answer 1

Biogenesis is the theory that living organisms can only come from pre-existing living organisms. Spontaneous generation is the obsolete theory that living organisms can arise from non-living matter. Vital force is the hypothetical life force or energy thought to be responsible for the creation of life.

Step-by-step explanation:

1. Biogenesis is the theory that living organisms can only come from pre-existing living organisms.

2. Spontaneous generation is the obsolete theory that living organisms can arise from non-living matter.

3. Vital force is the hypothetical life force or energy thought to be responsible for the creation of life.

1. The correct answer is c. large fish developed from smaller fish, which hatched from fish eggs.

2. The purpose of the netting in Redi's experiment was to prevent c. adult flies from entering the jar.

3. In the experimental group in Spallanzani's experiment, the correct answer is a. broth remained clear.

4. Spallanzani's opponents disagreed with his conclusion that microorganisms from the air contaminated the boiled meat broth. They argued that Spallanzani b. heated the flasks too long, destroying the "vital force" in the air inside the flasks.

5. In Pasteur's experiment, the function of the curved neck on the flask was to prevent b. air from leaving the body of the flask.

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