Answer:
introduces substances into an environment
Explanation:
eutrophication is just a bunch of algae in a pond or source of water. pollution is bad materials in the air. smoke and algae are substances in an environment.
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Answer: We need DNA to reproduce and it's unique due in part to recombination. recombination is traded between the chromosomes that make up a pair.
Explanation:
Answer:D
Explanation:All things are made up of atoms but only living things are made of cells.
Out of the following
given choices;
A. unimportant; no medical attention
B. stable; the R.I.C.E. formula
C. severe; immediate medical attention
D. severe; the R.I.C.E. formula
The answer is C. Head
injuries should never be overlooked. This is because
the brain could be damaged yet it is the most important organ of the body. Many
symptoms of serious brain injury won’t appear right away. Some injuries result
to internal hemorrhage that is not
detected then but later causes serious brain damage such as intracranial
hematoma.
Answer:
Invertebrates include all animals that lack a backbone, or a vertebral column. All chordites exhibit four characteristics during at least one stage of life: a dorsal, hollow nerve chord; a notochord; a tail that extends beyond the anus; and pharyngeal pouches.