Answer: Option B
Explanation: The thin layer that forms the outer covering of the cell is known as the cell membrane. It is composed of the lipid bilayer which as embedded proteins.
This membrane is selectively permeable which means it allows only specific molecules to pass through them.
The main function of cell membrane is to protect the cell from the outer environment and by the invasion of harmful bacteria and viruses.
Living organisms also contain a lot of hydrogen, oxygen, nitrogen, sulfur, and phosphorous. Those atoms combine together to form complex molecules of various types: proteins, carbohydrates, lipids, and nucleic acids.
Answer:
They absorb the food molecules that result from the external digestion.
Explanation:
Answer:
Heterozygous roller/heterozygous curved, heterozygous roller/homozygous straight, homozygous non-roller/heterozygous curved, homozygous non-roller/homozygous straight
Explanation:
