A dichotomous key helps you identify unknown specimens based on their traits because there are only two options available per trait. Selecting one from the two options (usually contrasting characteristics) from each step leads to smaller and smaller groups until the option is reduced to single and unique trait of an organism.
Considering you need to identify an organism. So, on the top of they key is animal with options: (a) with red blood cells and (b) no red blood cells. The option you will select is no red blood cells and under option b, you’re given two choices again: (a) hard bodies and (b) soft bodies. You’ll select soft bodies, then two options again are given: (a) with shell and (b) without shell. The option you’ll select would be without shell, and so on.
Answer:
B- dead tissue
Explanation:
I just a test on it its mainly an IXL
Answer:
Limestone
Explanation:
Sedimentary rocks are formed by the accumulation of sediments. In this question box X is a nonclastic rock that can be chemical sedimentary rock or organic sedimentary rock. In given options, Breccia, Sandstone, and Conglomerate are clastic sedimentary rocks. Only Limestone is non-clastic rock, that belongs to organic sedimentary rocks. Limestone form from the accumulation of plant or animal debris.
Organisms that die would have a harder time decaying, or may not even break down at all! Decomposers and detritivores break down dead organisms so without them it won't take place.
Carbon dioxide and oxygen are
differentially exchanged between the atmosphere and the oceans in the carbon
cycle. An increase in atmospheric carbon dioxide also raises the carbon dioxide
absorbed by the oceans. This increases the pH of the ocean waters which consequently
affects the growth of phytoplankton. Low pH affects negatively the growth of phytoplankton.
The clarity of the waters would, therefore, increase with pH due to low
plankton growth.