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kotykmax [81]
4 years ago
10

An experimenter wanted to test the effects of cigarette smoking on rats. She infused the cages of 50 rats with cigarette smoke a

nd the cages of another 50 rats with pure, clean air. The rats that received the clean air were the ____.​
Biology
1 answer:
Feliz [49]4 years ago
4 0

Answer:

Control group

Explanation:

A control group is<em> a group of individuals in an experiment where the independent variable being tested (the exposition to cigarette smoke in this case) can't influence the results.</em> This control group will be then compared to the experimental group (exposed to the smoke) to see the effect of the variable evaluated.

I hope you find this information usefula nd interesting! Good luck!

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Which two processes allow water to enter the atmosphere?
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Answer:

Evaporation and Transpiration

Explanation:

Evaporation is the process in which water from bodies of water vaporizes and enters the atmosphere while transpiration is the process in which water from plants evaporates into the atmosphere.

6 0
3 years ago
Two organisms with genotype aabbccddee mate. These loci are all independent. What fraction of the offspring will have the same g
UNO [17]

Answer:

100%

Explanation:

The given parental genotype is homozygous for all the genes. According to the given information, both the parents are homozygous for five genes and have genotype "aabbccddee". Since both the parents are homozygous for all the loci, meiosis during gamete formation would result in the formation of all same types of gametes from both the parents.

Both the parents will form all the gametes with an "abcde" genetic constitution. The random fusion of gametes with a given genotype will form all the progeny with genotype "aabbccddee". Therefore, the given parents will produce 100% genetically identical progeny to them.

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3 years ago
Rough E.R. has _________ attached to its membrane
damaskus [11]
Ribosomes.

Additional Info:
It uses these ribosomes to make proteins for transport.
8 0
4 years ago
A new monkey species has developed. This species climbs trees and has opposable thumbs but does not have a prehensile tail. Whic
svetoff [14.1K]

Answer:

B. Old world monkeys

Explanation:

The Old World monkeys (including baboons) inhabit Africa and Asia, and are more closely related to apes. They are generally larger than New World monkeys, have more elongated faces, and have a tail that is not "prehensile".

8 0
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Read 2 more answers
Please help me, brainlist will be givin.
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