Will mark as brainliest 35 what happens if one type of plant in an ecosystem dies out from disease?

a.
all of the other plants in the ecosystem would die out.

b.
all of the animals in the ecosystem would die out.

c.
the animals eating the plants would receive more energy.

d.
the animals eating the plants would need to eat other plants.

Which description provides the best objective summary of the article in the passage?

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?