Answer:
(a) and (d) are correct
Explanation:
AIDS is a disease that's usually transmitted by sexual contact and breast feeding.
Answer:
Three elements, carbon, oxygen and hydrogen, are essential to plant growth and are supplied by air and water.
Explanation:
Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.
Answer:
3 I think I hope its right
Answer:
The correct answer is option sebaceous glands.
Explanation:
The dermis layer has two glands sweat and sebaceous glands. Sebaceous glands are associated with skin hair follicles and produce a lipid-rich substance having minerals and proteins.
Sebaceous glands also assist the skin to inhibit or protect from microbial growth due to the presence of some fatty acid and lipids.
Thus, the correct answer is option - sebaceous glands.
