Q: What describes a combination of two or more substances, each of which maintains its own chemical identity? Choices: - bond - structure - solute - mixture A:
mixture

(Question)
Q: Most amphibians breathe with these as larvae? Choices: - nostrils - lungs - pores - gills A:
(Answer)
gills

Ques: Q: What are the two major types of seed plants called? Choices: - perennials and annuals - flowers and fruits - deciduous and evergreen - gymnosperms and angiosperms A:
Ans: gymnosperms and angiosperms

(Q).
Q: What is the best-known geyser in the world that also faithfully erupts every 90 minutes? Choices: - devil's tongue - angel falls - old guy - old faithful A:
(A).
old faithful

Ques:Q: What does the stomach produce to help digest food? Choices: - acetic acid - lactic acid - amino acid - hydrochloric acid A:

Ans:hydrochloric acid

Q: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what? Choices: - hard shell - yolk - albumen - amniotic membranes A:
amniotic membranes