Question

Plants have lower energy needs as compared to animals because
(a) Plants do not move
(b) In a large plant body, there are many dead cells
(c) Both (a) and (b)
(d) None of the above

Answer 1

Hint: Plants fulfill their nutritional requirements by photosynthesis and absorption of nutrients from the soil through roots. These roots run deep in the ground and hold the soil tight.

Complete answer:
Plants thus cannot move, plants show movements but those are stimulus oriented. Some plant movements are:
Tropic movements: these movements are towards a resource/ in the direction of the stimulus. Tropic movements include:
Phototropism which is the movement of the plant towards the source of light the shoot of the plant shows phototropism.
Geotropism which is also called gravitropism is the movement of plant roots toward the ground.
Chemotropism is the plant’s response to a chemical substance. This is seen in pollen grain on the stigma which is attracted by the chemicals released by the egg.
Hydrotropism is the growth of plant roots towards the water.
Rheotropism is the movement or growth of plant organs in the opposite direction of water current
Thigmotropism is the movement of plant organs in response to change in temperature like the curling of leaves in heat.
Nastic movements are movements shown by plants in response to external stimuli; these are unlike tropisms and could be turgor temporary movements like the closing of leaves of the mimosa (touch me not) plant.
Keeping that in mind it is also because plant bodies are mostly dead cells that do not require nutrition, their only function is support.

So the correct answer is, Both (a) and (b).

Note: Plants show movement but not locomotion, animals on the other hand show locomotion. Animals need locomotion for their basic needs like food, shelter, and reproduction.