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.
Answer:
The act of carefully watching or examining a person or object when something is happening is known as an observation. An act of deriving rational conclusion from known facts or circumstances is called inference. ... On the other hand, the inference is an explanation or assumption of what one has perceived or seen.
Explanation:
Answer: This is called chlorine
Explanation: 18
Answer:
animals also include vitamins, which are organic compounds required in microgram or milligram amounts.[Since plants are the primary origin of nutrients for humans and animals, some micronutrients may be in low levels and deficiencies can occur when dietary intake is insufficient, as occurs in malnutrition, implying the need for initiatives to deter inadequate micronutrient supply in plant foods.
Explanation:
