High oxygen in the water and low oxygen in the blood
Development of the embryo begins at stage 1 when sperm fertilizes an oocyte and together they form a zygote. Human development begins after the union of male and female gametes or germ cells during a process known as fertilization (Conception).
Answer:
Every nation has its own natural resourse that has abundant and theres other that lack so the countries will trade they abundant for the ones they dont have.
Explanation:
Answer:
18ft
Explanation:
because there are 18 blocks total 9 blocks at the bottom 6 in the middle and 3 at the top.
