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Biology Questions and Answers (Q&A)

Why are food chains limited to 4-5 tropic levels?
Videosbym
Answered: Nov 22, 2024
Energy losses between trophic levels restrict the length of food chains and the biomass of higher trophic levels, energy losses, restrict the length of food chains, restrict length food chains,...Read More

10 Answers

8063 views
Why are prokaryotic cells generally smaller than eukaryotic cells?
G. Roland, Professor
Answered: Nov 05, 2018
There are two types of cells. They are the prokaryotic cells and the eukaryotic cells. The prokaryotic cells are a little smaller in size compared to the other type of cell, the eukaryotic cells....Read More

5 Answers

2582 views
What is the correct sequence of the cell cycle?
L. Gibson, Science Professor
Answered: Feb 10, 2021
The correct sequence of cell cycle is  G1 -> S -> G2 -> M
The cell cycle is the process by which a cell increases in size in preparation for cell division. In this process. The cell...Read More

4 Answers

2358 views
Can you name these components correctly? The nucleus controls all the activities of the cell and acts as a site of DNA material and protein synthesis. It is composed of some components which all...
C. Bernthal, Teacher
Answered: Jun 06, 2019
Label A is Nucleolus, which is the largest structure in the eukaryotic cells nucleus. The process of ribosome biogenesis occurs in the nucleolus. Label B is Chromatin, which is found in...Read More

2 Answers

1648 views
What is the reason for Okazaki fragments being formed during DNA replication?
L. Gibson, Science Professor
Answered: Feb 10, 2021
The correct answer is - To enable replication of the 3′ → 5′ (lagging) strand
The reason for Okazaki fragments being formed during DNA replication is to enable replication...Read More

5 Answers

1582 views
What does not affect the rate of diffusion of a substance?
L. Gibson, Science Professor
Answered: Feb 10, 2021
Diffusion can be defined as the movement of molecules from a region of higher concentration to a region of lower concentration. Diffusion is an important process that occurs in living beings....Read More

3 Answers

1398 views
What is not a function of mitosis in humans?
L. Gibson, Science Professor
Answered: Feb 10, 2021
Production of gametes from diploid cells
The Production of gametes from diploid cells is not the function of mitosis in humans. Mitosis is the process in which a single cell is divided into...Read More

3 Answers

1398 views
What is the correct flow of genetic information in eukaryotic cells?
S. Leo, Content Blogger
Answered: Feb 03, 2021
The correct flow of the eukaryotic cells is DNA first before it will become RNA. Finally, the last stage will be proteins. Take note that most but not all eukaryotic cells will have their genetic...Read More

2 Answers

1310 views
Which sequence represents the correct order of increasing complexity in living systems between cell, molecule,organ,tissue?
I.Elizabeth
Answered: Feb 02, 2018
Living organisms are incredibly complex biological machines, working to continue life. However, at our core, we are pretty simple and have the same basic unit, the cell. Then many similar cells...Read More

2 Answers

1243 views
What description best fits the class of molecules known as nucleotides?
Todd Gurley
Answered: Feb 12, 2021
The correct answer is – Nitrogenous base, phosphate group and a pentose sugar
Nucleotide is defined as a monomer constituting DNA or RNA biopolymer molecules. Each nucleotide consists...Read More

3 Answers

1230 views
Which of the following, Messenger RNA, amino acids, ribosomal RNA, TRNA is not synthesized from a DNA template?
A. Samuel, Content Manager
Answered: Feb 04, 2021
Amino acids are not synthesized from a DNA template. Amino acids are known to be organic compounds. They would need to combine so that proteins can be formed. Without amino acids that will not be...Read More

2 Answers

1170 views
What is the end product of fat and oil?
S. Leo, Content Blogger
Answered: Feb 03, 2021
You should know that fat and oil are considered to be triglycerides. Their end product will also be glycerol and fatty acids. These will be released to the lymphatic system. The fats that enter...Read More

2 Answers

1150 views
What takes up 50-70 percent of a whales weight?
Samantha Stewart, Philanthropist
Answered: Feb 18, 2021
The part of a whale that takes up to 50-70 percent of its actual weight is "Blubber." It is a fatty layer of adipose tissue that is found immediately beneath the skin of most marine mammals....Read More

9 Answers

1106 views
What are the possible genotypes and phenotypes, along with their percentage chances, for the offspring of the following?
Anika Nicole, Wordsmith
Answered: May 15, 2018
Here, one parent is dominant with the homozygous alleles, hence the genotype of this dominant parent will be AA. Another parent has heterozygous alleles and hence, the genotype of recessive...Read More

2 Answers

1088 views
What is not a part of Darwin's theory of evolution?
Chris Kenway, Content Writer
Answered: Jun 27, 2018
“Acquired traits can be inherited.” This means that a parent who is able to learn the piano and is good at it may not be able to pass on the skill to his child. This is becaus...Read More

2 Answers

1075 views

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