Q: Niche refers to the role a species plays in what? Choices: - the habitat - reproduction - migration - the ecosystem A:
the ecosystem

Q: Long distance runners try to maintain constant velocity with very little acceleration or deceleration to conserve what? Choices: - fuel - pressure - momentum - energy A:
energy

Q: What is secreted before ejaculation to neutralize acidic urine remaining in the urethra? Choices: - sperm - semen - pre-cum - clear mucus A:
clear mucus

Q: Where is multiple fission more often observed? Choices: - among multi-celled organisms - among animals - among vertebrates - among protists A:
among protists