Answer:
D
Explanation:
when when lakes receive an overabundance of nutrients they can become polluted by excessive amount of algae.
Answer:
a
Explanation:
object in motion will stay in motion until it is acted upon
Ants and aphids live in a mutualistic relationship which is a sub-type of symbiosis. <span />
Answer:
The correct answer is A. radial symmetry with only two germ layers and one digestive opening.
Explanation:
Phylum Cnidaria consist of aquatic organisms and they have special feature called Cnidocytes. Cnidocytes are tentacles used to capture the pray. All organisms of phylum are bilateral and have two body layers called Endoderm and Ectoderm. A jelly like material called mesoglea is present between ectoderm and endoderm. Their digestive system has no organs and their is a single opening to capture the food. As they have only single opening in digestive system it is also used to excrete the digested food out of the body.
Answer:
It compares Population Size and Time.
Explanation:
Population size is the number of individuals in an organism.
