2. asap
use this portion of a dichotomous key for tree identification to answer the question.

1a. needlelike leaf ® step 10
1b. broad leaf ® step 2
2a. compound leaf ® step 3
2b. simple leaf ® step 7
3a. leaves attached at single point ® buckeye
3b. leaves attached at many points ® step 4
4a. leaf bases attached opposite each other on branch ® ash
4b. leaf bases attached staggered on branch ® step 5

what are the characteristics of a buckeye leaf?
needlelike simple leaves attached opposite each other on the branch
broad simple leaves attached at single points on the branch
broad compound leaves attached at single points on the branch
needlelike compound leaves attached staggered on the branch

The correct answer will be option - broad compound leaves attached at single points on the branch.

Explanation:

The buckeye plant belongs to the genus Aesculus found primarily in the American states so they are also known as American buckeye. These buckeye plants can be identified in the classification system based on the shape and distribution of the leaf blade or lamina.

On the basis of leaf lamina, the leaf of the plant belongs to the group of "palmately compound leaf" in which the leaflets of the leaf radiate out from the end of the petiole like fingers of the palm of a hand.

Thus, option - broad compound leaves attached at single points on the branch.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.