a

Conversion of mechanical energy into radiant energy
b
Action of contractile fibers
c
Conversion of light energy into heat energy
d
Action of plant hormones

1 answer

It appears you've provided a list of options related to various processes or actions, likely related to biology or physics. However, you haven't specified what you're asking for. Each option describes a different concept:

a. Conversion of mechanical energy into radiant energy: This refers to a physical process where mechanical energy (like movement) is transformed into light energy (radiant energy). An example is how a moving object can produce light when it generates friction.

b. Action of contractile fibers: This typically describes muscle contraction, where fibers in muscle tissues (like actin and myosin) interact to produce movement.

c. Conversion of light energy into heat energy: This process is often seen in photosynthesis, where light energy is absorbed by plants and can be converted to heat, among other forms of energy.

d. Action of plant hormones: Plant hormones (such as auxins, gibberellins, and cytokinins) regulate various growth processes in plants, influencing growth direction, flowering, and fruiting.

If you have a specific question or need clarification on any of these points, please let me know!

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