Q: Q: Chloroplasts, chromoplasts, and leucoplasts are all plastids, organelles found in what kind of cells? Choices: - animal cells - lung cells - heart cells - plant cells A:
A: plant cells

Q: Q: Arteries have thinner wall layers and valves and move blood by the action of skeletal what? Choices: - marrow - collagen bands - hormones - muscle A:
A: muscle

Q: Q: What has two chains of nucleotides, one more than rna? Choices: - gna - fna - mna - dna A:
A: dna

Q: Q: In the periodic table, elements are arranged from left to right according to what property? Choices: - metallic mass - real mass - major mass - atomic mass A:
A: atomic mass