Which of the following is the most important process specific to land dwelling plants
a. production of photosynthesis pigments
b. conservation of water
c. exchange of gas
d. presence of cell walls

The correct answer is option A

The most important feature of the plants is the production of photosynthesis pigments that aids in the process of photosynthesis.

The specific characteristics of terrestrial plants is the process of photosynthesis which is done by the pigments present in the green plants.

Chlorophyll is only present in  green plants and is the most specific feature of land dwelling plants.

the answer is d.) homologous; have mammary glands

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.