The placenta allows nutrients and oxygen travel from the mother to the fetus(or to the Baby.
The placenta<span> is </span>fully formed<span> by 18 to 20 weeks
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hope it helps
Answer:
"distribution of traits." ... This occurs when males display certain traits that attract the female, such as peacocks fanning out tails
Explanation:
Answer:
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Explanation:
There are four main types of tissue<span>: muscle, epithelial, connective and nervous. Each is made of specialized cells that are grouped together according to structure and </span>function<span>. Muscle is </span>found<span> throughout the </span>body <span>and even includes organs such as the heart. Our outer layer of skin is epithelial </span><span>tissue.</span>