Involves a pioneer species.

a. primary
b. tertiary
c. secondary
d. quaternary

A. Primary

Explanation:

Pioneer species are the first to arrive after a disturbance, so they are part of the first stage of succession = primary.

Primary.

Explanation:

Succession may be defined as the change of the structure of the ecosystem and species with time. Two main types of succession are the prmay succession and secondary succession.

Primary succession occurs on the baren land. The ioneering species is the first species that inhabit in the baren land. Hence, pioneer species is involved in the primary succession.

Thus, the correct answer is option (A).

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set