Organisms in an ecosystem usually have adaptations that them to survive in their environment.

suppose the environment of a desert ecosystem changes to become much colder and wetter. which organisms in this ecosystem will most likely be affected?
a.
only the animals that live in the ecosystem will be affected.
b.
all of the organisms that live in the ecosystem will be affected.
c.
none of the organisms that live in the ecosystem will be affected.
d.
only the plants that live in the ecosystem will be affected.

B

Explanation:

if the desert become colder and wetter, some animals that can only survive in hot conditions will die, and the food(plants) that they eat will die, and the decomposers who feed on the remains of the plant will die as well so its b, All the organisms will get affected

hope this helps;)

B.  

All of the organisms that live in the ecosystem will be affected.

Explanation:

To understand the problem, we also need to analyze the relationships betwwen plants and animals. For example, many kinds of plant rely on birds, monkeys, insects and other animals that feed on their fruits, seed, etc, and the canivores will eventually feed on these herbivores. So if only plants or animals are affected, the others can somehow be affted as well. But this is not very likely to happen since the change in the climate can have an effect on any organism, for instance, many animals that can't adapt to the new temperature and the change in their diet will be affected and very likely to die, the same thing may happen to animals, as well. So B is the most suitable answer (in my personal opinion).