A mutant plant is found in which the seeds germinate far too early. Which hormone is likely involved and why?

A shrub growing in the forest has recently had its shoot apical meristem eaten by a deer. Using your knowledge of plant hormones, how and why will this affect the remaining buds on the shrub shoot and the future growth of the plant aboveground and belowground.

Match each hormone to its function or application. NOTE: If none of the options are correct, you MUST select #4for 'none of the above', otherwise it will be graded as incorrect   Question 14 options:   Auxin   Giberellins   Cytokinins   Ethylene   1. Used in anti-aging skin creams. 2. Ripens fruit. 3. Causes stems to bend towards the light. 4. None of the above

Why is that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?