Where do maple trees get their energy and Matter at the beginning of spring

From the stored sugar inside the stem and branches.

Explanation:

The maple trees get their energy at the beginning of spring from the sugar that is stored in the stem and branches because there is no leaves present at that time. Leaves produces glucose during photosynthesis process but in the winter season, the maple tree losses all its leaves so when the spring season comes and the leaves begin to sprout, the maple trees need energy so it used the sugar that is stored in its branches and stem for the generation of energy.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.