The network of connective tissue fibers which pass through the tissues of the body and allow for the efficient movement of immune system cells is the

A) Reticuloendothelial system.
B) Circulatory system.
C) Lymphatic system.
D) Extracellular fluid system.


A) Reticuloendothelial system.

Biology & Microbiology

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What is the agricultural significance of root nodules on plants?

1.The nodules help hold soil in place so there is less erosion. 2.The nodules place nitrogen in the soil, so that less fertilizer is required. 3.The nodules increase the surface area of the root for water absorption, so less irrigation water is needed. 4.Root nodules would play no role in agricultural plants.

Biology & Microbiology

Dependence on animal vectors for fertilization

and dispersal is characteristic of many species of a. ferns. b. angiosperms. c. mosses. d. conifers. e. cycads.

Biology & Microbiology

Which of the following is not a modern ape?

a. Gibbon. b. New World Monkey. c. Chimpanzee. d. Gorilla. e. Orangutan

Biology & Microbiology

Matching.Match the pigment with its relationship to sunlight.

A. ____ absorbs only blue light. B. ____ is the primary pigment in photosynthetic plants. C. ____ is responsible for red color in cyanobacteria. D. ____ causes some protists to appear blue. E. ____ causes some fruits and vegetables to appear orange or yellow.

Biology & Microbiology