General growth media serves the purpose of generating more bacteria colonies to create enough samples to identify to perform other tests. Differential media is used to differentiate species or subspecies of bacteria by how they differentially react to the dyes of chemicals in the media due to differences in metabolic properties of the different bacteria species. An example of differential media is MacConkey agar.
Answer:
F
Explanation:
It occupies both the third and fourth trophic levels. i.e
1st trophic level: Producer(plants)
2nd trophic level: Plant eaters (B & C)
3rd trophic level: Secondary consumers (E & F)
4th trophic level: Tertiary consumers (H & F) (they both feed on E which is a secondary consumer)
Thus F is both a secondary and tertiary consumer.
Answer:
Nucleus is the structure present in the cells that directs the cell activities.
Explanation:
Nucleus is responsible for cell division also it has heredity material stored inside it in the form of DNA.
It also plays a very important role in the synthesis of particular enzymes as well.
