Q: What features of a salamander's skin help protect itself from predators ? Choices: - camouflaged and thin - slimy and camouflaged - thick and impenetrable - brightly colored and poisonous A:
brightly colored and poisonous

(Question)
Q: The simplest system is that of contractile vacuoles present in what? Choices: - parasites - macroorganisms - crystals - microorganisms A:
(Answer)
microorganisms

Ques: Q: In prokaryotes, what is composed of a single, double-stranded dna molecule in the form of a loop or circle? Choices: - allele - rNA - chromosomes - genome A:
Ans: genome

(Q).
Q: The wavelength of a what type of wave can be measured as the distance between two adjacent compressions? Choices: - horizontal - lateral - vertical - longitudinal A:
(A).
longitudinal

Ques:Q: Both pathways that isolate a population reproductively in some form, allopatric and sympatric describe what, which means the creation of new species? Choices: - accumulation - extinction - bacterial - speciation A:

Ans:speciation

Ques: Q: What kind of rock forms when material such as gravel, sand, silt or clay is compacted and cemented together? Choices: - ingenious - limestone - craters - sedimentary A:
Ans:
sedimentary