(question). What is better able to dissolve oxygen and nutrients than standing water?
Options:
- (A) puddles
- (B) microorganisms
- (C) ponds
- (D) nitrogen
- (E) swamp vegetation
- (F) Veins and arteries.
- (G) streams and creeks
- (H) peachleaf willow
(answer). Running water is better able to dissolve oxygen and nutrients than standing water. Streams and creeks provide running water. Streams and creeks are better able to dissolve oxygen and nutrients than standing water.
The answer is (G)


(question). Cells make up plants and animals what?
Options:
- (A) genes and DNA
- (B) structure and function
- (C) important habitats
- (D) remains of prehistoric life
- (E) function and beliefs
- (F) function and viruses
- (G) converting electricity to heat
- (H) absorb light energy
(answer). Cells are the basic units of the structure and function of living things. Every living thing, animal and plant, are given a classification. Cells make up the structure and function of plants and animals.
The answer is (B)


(question). Flower spores eventually develop into an entity that is:
Options:
- (A) sperm
- (B) fertile
- (C) mammalian
- (D) ferns
- (E) fungi
- (F) development
- (G) haploid
- (H) plants
(answer). Flowers produce spores that develop into gametophytes. All gametophytes are haploid. Flowers produce spores that develop into haploid entities.
The answer is (G)


(question). Male dogs use_ in urine to mark their territory.
Options:
- (A) ammonia
- (B) Chemical energy
- (C) proteins
- (D) semiochemicals
- (E) animals
- (F) heat produced
- (G) nitric oxide
- (H) They have thick fur
(answer).
Male dogs use pheromones in urine to mark their territory. Pheromones are a sub-category of semiochemicals. Male dogs use semiochemicals in urine to mark their territory.
The answer is (D)