The answer is option D "test the effect of cyanide on algae." Ecologist are researchers who study how organisms interact with their environment so in this case they are testing how algae reacts to cyanide. In another example they will be testing how a ape reacts to having a different fruit tree in their habitat. It wouldn't be option A, B, and C because you have to remember the job of a ecologist and the options are not jobs of one.
Hope this helps.
Because you need your legs to carry your whole body, so, essentially, your legs have to have bigger bones and muscles.
Answer:
7 cat and lion
8. animalia chordata and mammalia
9 mammalia
10 chordata
11 <em>Felis domesticus</em>
<em>Felis concolor</em>
<em>Canis familiaris</em>
<em>Hom0 sapiens</em>
<em>have to change the o to a 0 to get them to accept the answer</em>
Explanation:
The answer to the question is c
