(Q).
Q: Why do hummingbirds have long narrow bills? Choices: - to feed their offspring - to store food - for protection against predators - to reach the nectar at the bottom of flowers A:
(A).
to reach the nectar at the bottom of flowers

(Q).
Q: Which two gases make up the bulk of earth's atmosphere? Choices: - carbon and oxygen - phosphorus and oxygen - nitrogen and argon - nitrogen and oxygen A:
(A).
nitrogen and oxygen

(Q).
Q: What type of cell has a singular chromosome, no nucleus, and few other organelles? Choices: - trophic - graphic - monophyletic - prokaryotic A:
(A).
prokaryotic