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Alex
3 years ago
11

Jack has just returned after a walk in the woods. He finds several sticky weed seeds stuck to his jersey with their sharp hooks.

Why do these seeds have sharp hooks?
a.to help in seed dispersal
b.to keep from being eaten
c.to attract insects
d.to help in germination
Biology
1 answer:
Flura [38]3 years ago
6 0
The reason is to help in seed dispersal. Seed dispersal is the movement or transport of seeds away from the parent plant. Due to the fact that plants have very limited mobility they have to rely upon variety of dispersal; vectors to transport their seeds, including both abiotic and biotic factors. Seed dispersal is important because if seed are not dispersed, many germinating seedlings will grow very close to the parent plant which would result to competition between every one of the seedlings as well as the parent. The competition for essential growth factors such as light, space, water and nutrients. 
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Answer:

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Explanation:

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Hope this helps!

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7 0
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Answer:

The correct answer would be - remain the same.

Explanation:

In the given table showing the average daily calories requirement according to the weight of the adult men. Which is as follows:

weight                daily intake

132                        2250

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In this, the highlight weight and required calories should be taken by the man who does not perform any physical exercise but according to the question a man with 154 lb perform a moderate exercise, and according to the CDC a 154 lb men can burn anywhere between 140 and 295 calories in 30 minutes by moderate exercise for an hour.

Thus, the total calories he takes: 2700

burn by exercise: 295

should take: 2450

then = 2700 - (2450+295)

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Answer:

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