Hey. The first sound is the "lub." This is what you hear once the mitral and tricuspid valves of the heart close, which are the valves between the atria and the ventricles! Super cool. It is your third answer choice.
Explanation:
cellular respiration occur in animal/human
while photosynthesis occur in plant
<span>The answer is kingdom; species</span>
The correct answer is the second choice, "Two identical prokaryotic cells."
Binary fission happens when bacterial cells copy chromosomes and split into two. It's most common in prokaryotic cells, but can happen in some eukaryotic cells.
Answer:
Thanks won't tell them anything and neither anyone else