Its not dumb. Sweetie I don't even know
All living cells arise from pre existing cells.
The correct answer is B. competitive exclusion.
This law refers to the fact that it is nearly impossible for two species to exist in the same place at the same time together, if they are interested in the same resources. If both species need the same thing to survive, one will have to be stronger while the other one will dwindle in number.
<span>External circumferential lamellae</span>
Answer:
1.2 million plants and animals
Explanation:
The living organisms have been grouped into two kingdom
a) Plants
b) Animal
Earth has enormous varieties of living species ranging from microscopic bacterias to huge animals like elephants, rhinoceros, from water plants and animals to terrestrial plants and animals , from autotrophic to heterotrophic organisms, from forest biome to desert biome etc.
In totality, there are 8.7 million species of plants and animals on earth. But till today only 1.2 million species have been identified and described.
