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vampirchik [111]
2 years ago
8

student prepared a test tube containing yeast, glucose, and water. After 24 hours, the test tube was analyzed for the presence o

f several substances.What substance would the student expect to find if respiration occurred in the test tube?
Biology
1 answer:
expeople1 [14]2 years ago
5 0

Answer:

In the presence of oxygen, respiration of yeast produces carbon dioxide and water. In the absence of oxygen, respiration of yeast produces carbon dioxide and alcohol.

Under the assumption that the yeast has insufficient exposure to oxygen in the surrounding air in the testtube, alcohol and carbon dioxide would be expected to be found in the test tube

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Suppose a one-year old child is playing with a toy near an electrical out-let. He sticks part of the toy into the outlet. He get
Papessa [141]

Answer:

UCS: sticks part of the toy into the electrical outlet

UCR: frightened and crying

CS: toy

CR: frightened to toy

Explanation:

Classical conditioning is a form of learning whereby a conditioned stimulus becomes associated with an unrelated unconditioned stimulus, in order to produce a behavioral response known as a conditioned response.

<u>Unconditioned stimulus</u> (UCS) is an agent that leads to a response without training. In this example, the child won't know that he can have electrical shock playing with toys.

<u>Unconditioned response</u> (UCR) is an automatic response to a UCS that's why the child starts crying and frightened.

<u>Conditioned stimulus</u> (CS) is a former natural stimulus that comes to elicit a given response after pairing with a UCS. In this situation, CS is when mom gives the same toys to the baby that was the reason for electrical shock.

<u>Conditioned response</u> (CR) is a learned response to a CS because the baby shows fear when he saw the same toys. It is his learned behavior.

3 0
2 years ago
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In an experiment, the hypothesis is If the wavelength of the light shining on a plant is shortened, the rate of photosynthesis i
Alex Ar [27]
That’d be C. The rate of photosynthesis is dependent on the wavelength of the light(independent variable).
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2 years ago
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The action of helicase creates _____. the action of helicase creates _____. primers and replication bubbles replication forks an
lapo4ka [179]
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What is the function of active transport in moving small molecules and ions across cell membranes?
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5 0
2 years ago
Which Punnet square represents a cross between two parents that are heterozygous for purple flowers
navik [9.2K]

Answer:

Punnett square is a square diagram which is used to predict the genotype of the offspring produced by particular cross.

Let P and p be the alleles of the gene responsible for the flower colors in a plant.

The genotype of both the parents is given as heterozygous that is, Pp.

Two types of gametes would be formed P and p.

The cross is shown in the image below.

The cross would be result in offspring with three types of genotypes PP, Pp and pp in 1:2:1.


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2 years ago
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