Q: Coral reefs and tropical rainforests are ecosystems known for what, contributing greatly to the species in existence on earth? Choices: - commensalism - mass migrations - spontaneous mutation - biodiversity A:
biodiversity

(Question)
Q: Molecules are represented by symbols that all who agree on? Choices: - astrologists - geologists - physics - chemists A:
(Answer)
chemists

Ques: Q: What term describes the rate at which a device changes electric current to another form of energy? Choices: - kilowatts - voltage - kinetic energy - electric power A:
Ans: electric power

(Q).
Q: Catenulids typically reproduce asexually by budding where? Choices: - their anterior end - their neuronal end - their analogous end - their posterior end A:
(A).
their posterior end

Ques:Q: Living species of chordates are classified into three major subphyla: vertebrata, urochordata, and what? Choices: - spirogyra - invertebrates - xerophyte - cephalochordata A:

Ans:cephalochordata

Q: Proto-oncogenes normally help regulate what? Choices: - cell transition - cell death - cell function - cell division A:
cell division