Answer:
1. Gibberellins
2. Abscisic acid
3. Cytokinins
4. Ethylene
5. Auxins
Explanation:
Hormones, generally, are chemicals produced in a specific part of an organism in order to bring about a physiological change in another part. Hormones produced by plants are classified into the following: Auxins, Gibberellins, Cytokinins, Ethylene, and Abscisic acid. They effect the following major functions in plants:
- Gibberellins: These are hormones produced by plants that stimulate stem elongation, seed germination, and flowering.
- Abscisic acid: These are hormones that regulates survival functions of a plant such as the opening and closing of stomata.
- Cytokinins: These are chemicals/hormones that helps plant cells divide.
- Ethylene: These are hormones that promotes ripening of fruit or blooming of flowers.
- Auxins: These are chemicals or hormones produced in plants that are characterized by their ability to induce cell elongation and cell division in stems.
Answer:
Only blue light reaches deep into the ocean.
Explanation:
Coral reefs exist in waters less than 50 m to 2000 m deep while Red algae have been found living in depths of over 500 feet because both coral reefs and red algae needs blue light for photosynthesis. In the deep sea or ocean, only short wavelength such as blue light reaches deep in the ocean floor while long wavelength light such as red unable to reach so that's why both coral reefs and red algae present and distributed on the ocean floor.