How do echinoderms use their feet to locomote themselves?
Options:
- (A) one at a time
- (B) to move people
- (C) running and lifting
- (D) protein channels
- (E) a hydraulic system
- (F) it needs them
- (G) undulations
- (H) It helps them survive
--
Let's think first: Echinoderms have a unique water vascular system with tube feet. Echinoderms have a hydraulic system of locomotion called the water vascular system. Echinoderms have a hydraulic system of locomotion with tube feet.... So the answer is [(E)]

What passes traits from parents to offspring?
Options:
- (A) Birth certificate
- (B) Lactation
- (C) p53
- (D) HIV
- (E) RNA
- (F) Pedigree
- (G) SNPs
- (H) DNA
--
Let's think first: Characteristics that are encoded in DNA are called genetic traits. DNA is used to transmit characteristics from parents to offspring. DNA passes traits from parents to offspring.... So the answer is [(H)]

What shows evolution over geologic time above the level of the species?
Options:
- (A) speciation events
- (B) Leptospirosis
- (C) cliffs
- (D) rapid expansion
- (E) peachleaf willow
- (F) swamp vegetation
- (G) Darwin
- (H) RNA
--
Let's think first: Macroevolution is evolution over geologic time above the level of the species. Speciation events are thus examples of macroevolution. Speciation events show evolution over geologic time above the level of the species.... So the answer is [(A)]

Where can you find marine biomes?
Options:
- (A) Lake Michigan
- (B) The Pacific
- (C) Absorb light
- (D) complex
- (E) the environment
- (F) The Amazon
- (G) The Missisippi
- (H) salt and water.
--
Let's think first: Marine biomes are found in the salt water of the ocean. Largest of the oceans on Earth is the Pacific Ocean . You can find marine biomes in the Pacific.... So the answer is [(B)]

What produces spores that develop into gametophytes?
Options:
- (A) fungi
- (B) cacti
- (C) plants
- (D) ferns
- (E) Orchids
- (F) PDAs
- (G) barnacles
- (H) bushes
--
Let's think first: Flowers produce spores that develop into gametophytes. Another interesting flower is the Orchid flower. Orchids produce spores that develop into gametophytes.... So the answer is [(E)]

Where does dna reside?
Options:
- (A) membrane
- (B) cells
- (C) embryos
- (D) atom
- (E) complex
- (F) nucleotide
- (G) ligt
- (H) retina
--
Let's think first: DNA is found in chromosomes. Genes live on chromosomes, chromosomes live in cells. DNA is found in cells.... So the answer is [(B)]