Answer:
1. 2. 4. 5. 7 and 8
Explanation:
3. False: A single stimulus can activate multiple target cells.
6. False: A ligand does not phosphorylate protein residues but can bind and activate kinase receptors resulting in conformational changes that induce intracellular phosphorylation of target protein domains.
9. False: Second messengers relay stimulus to intracellular targets. e.g calcium can act as a second messenger.
The major difference between compost and green manure lies in their composition. While green manure is made from animal-based waste products such as urine and feces. Adding compost to the soil enriches the soil with organic matter while green manure increases the nitrogen level of the soil.
Answer:
Photosynthesis-process by which green plants convert carbon dioxide, water, and energy from the Sun into sugars
Ammonification- process by which certain bacteria convert organic nitrogen into ammonia and ammonium salts during decomposition
Assimilation-process by which plants or animals convert nutrients into usable organic compounds, such as proteins
Denitrification-process by which certain bacteria convert nitrates into nitrogen gas
Nitrification-process by which certain bacteria convert ammonium into nitrates
Nitrogen Fixation-process by which certain bacteria in the soil convert nitrogen gas into ammonia and ammonium
Respiration-process by which living cells produce usable energy from food
