Answer:
I believe that the answer would be 39 and 78
They live every where
They can effect you and other organisms
They are microscopic
Answer:
Option A, Key stone
Explanation:
A keystone species plays a major role in an ecosystem as it is the species whose presence effects all other species in the ecosystem .In general a keystone species is always a dominant predator that feed on prey population. If it is removed, the prey population will explode and the population diversity will reduce. For example - bison, prairie dog etc.
Hence, option A is correct
Ans.
The phloem is living plant tissue ,found in vascular plants and made up of parenchyma cells and sieve elements. Phloem performs translocation, which involves transport the soluble organic products of photosynthesis, mainly the sucrose from photosynthetic sites other plant parts where needed.
Thus, the primary function of the phloem in vascular plants is to perform 'translocation.'
