Not a 100% sure but i believe it’s B
Answer:
True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.
Light-independent reactions
Answer:
transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Structure B. Chloroplasts are the site of ATP production in plant cells