BIOLOGY HIGH SCHOOL

Biologists recognize the following levels of cell organization: _____.a. cellular, multi-cellular, organ, system, and organism
b. cellular, tissue, organ, system, and organism
c. cellular, tissue, system, and organism
d. cellular, tissue, organ, and system

Answers

Answer 1
Answer: In the sentence "Biologists recognize the following levels of cell organization: _____, the choice that correctly completes the sentence is b. cellular, tissue, organ, system, and organism. A cell is the basic unit of living organisms. The group of similar cells that work together to perform a specific job is a tissue. The group of multiple tissues joined together in the functional structure is an organ. Functionally related organs form organ systems, which all together form one organism.
Answer 2
Answer: It is B. cellular, tissue, organ, system, and organism

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n the F2 generation of Mendel’s crosses, all plants had the dominant trait. half of the plants had the dominant allele. all plants had both the dominant and recessive alleles. one in four plants had two alleles for the recessive trait.

Answers

The answer is one in four plants had two alleles for the recessive trait. In the F1 generation of Mendel cross, all of the offspring will be heterozygous. After two heterozygotes cross, in the F2 generation, one in 4 plants will have two alleles for the recessive trait, one in 4 plants two alleles for the dominant trait, and 2 in 4 plants will be heterozygotes.

Answer:

one in four plants had two alleles for the recessive trait. is the answer

Explanation:

What characteristic is shared by birds, salamanders, and sharks? A. Lungs B. Jaws and paired appendages C. Four limbs D. Endothermy

Answers

A characteristic shared by birds, salamanders, and sharks is B. Jaws and paired appendages. Let's go through the process of elimination. Lungs: salamanders and birds have lungs, but sharks have gills. Jaws and paired appendages: birds, salamanders, and sharks have these characteristics. Four limbs: salamanders and birds have four limbs, but sharks have fins. Endothermy: salamanders and birds are endothermic organisms, but sharks are ectothermic.

How long does a lunar eclipse last?

Months
Minutes
Days
Weeks

Answers

A lunar eclipse can last for a couple of hours and some minutes

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skin conditions
B.

the rest of the endocrine glands
C.

the regeneration of nerve cells
D.

involuntary motor skills

Answers

B. The rest of the endocrine glands. 
It helps regulate them.

Yup the answer is B on engenuity

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Answers

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Why do naturalists suggest that we plant more trees?

Answers

The naturalists suggest that we plant more trees because plants release CO2 through respiration and its use for photosynthesis, thus decreasing the amount of CO2 and maintaining balance in the atmosphere. 
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