Q: The earliest cells were prokaryotes, surrounded by a cell membrane but lacking which key structure? Choices: - mitochondria - ribosomes - lysosomes - nucleus A:
nucleus

(Question)
Q: Symptoms of viral diseases result from what kind of response to a virus? Choices: - infection - pathogenic - mutation - immune A:
(Answer)
immune

Ques: Q: What do you call it when adult fish of the same species come together in a group and release gametes into the water at the same time? Choices: - migration - schoaling - poaching - spawning A:
Ans: spawning

(Q).
Q: Why does a metal spoon heat up quickly when placed in a hot drink? Choices: - insulation - high specific heat - convection - low specific heat A:
(A).
low specific heat

Ques:Q: What is the most important way that humans communicate? Choices: - inheritance - painting - instinct - language A:

Ans:language

Q: Zinc reacting with hydrochloric acid produces bubbles of which gas? Choices: - carbon - helium - mustard - hydrogen A:
hydrogen