Ques: Q: When cardiac muscle contracts, the heart does what? Choices: - cardiac arrest - irregular heartbeat - heart murmur - pumps blood A:
Ans: pumps blood

Ques: Q: What part of an atom is electrically neutral? Choices: - protons - electrons - newtons - neutrons A:
Ans: neutrons

Ques: Q: What process joins two haploid gametes into a diploid zygote? Choices: - embryo - fusion - migration - fertilization A:
Ans: fertilization

Ques: Q: In places like the grand canyon, hard rocks that are resistant to weathering form what, while softer rocks that weather more easily form slopes? Choices: - valleys - peaks - crevasses - cliffs A:
Ans:
cliffs