Why is direct mixing of mother’s and embryo’s blood not necessary in the placenta?
Answer and explanation
Correct answer: Because materials can exchange across thin surfaces
Step 1: Placenta provides close contact between mother and embryo. Step 2: Nutrients and oxygen can pass across thin surfaces to the embryo. Step 3: Wastes can also pass from embryo to mother.
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What is the correct answer to this question?
Because materials can exchange across thin surfaces
Why is this the correct answer?
Step 1: Placenta provides close contact between mother and embryo. Step 2: Nutrients and oxygen can pass across thin surfaces to the embryo. Step 3: Wastes can also pass from embryo to mother.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Reproduction.
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