Answer:
Diploid
Explanation:
Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
The answer is C genetic variation
Explanation:
D the substance get downeards
We do not use carbon dioxide to fuel our blood cells. It is a waste.
Arteries move blood from the heart to the rest of the body.
Veins carry the blood to the heart to be oxidized.
"D" is not correct.
"B" is not correct.
We know that veins carry blood to the heart, lungs exhale carbon dioxide.
"A" is the correct answer.
I hope this helps!
~kaikers
Binomial nomenclature is naming a organism by its genus and species the rules are the genus always comes first and the first letter is capitalized and the species always comes second and is lower case so the mountain lion would be Felis concolor