Answer:
i think nicotine travels through blood and we know blood reaches the right ventricle first
maybe right ventricle
Hemoglobin is the pigment in red blood cells responsible for carrying oxygen
Answer:
B
Explanation:
I believe it is meiosis because there are two parts in which it helps to increase genetic variety. In prophase 1, the genes cross over, which increases the variety. Also, the chromosomes are assigned randomly in Metaphase 1.
Hope this helps:)
Answer:
DNA digested with both enzyme h and e
Explanation:
Unlike the hippo's ancestor, whale ancestors moved to the sea and evolved into swimming creatures over a period of about 8 million years. Fossils of gigantic ancient whales called Basilosaurus were first mistaken for dinasaur fossils but were later recognised as mammals.
