Ques:Q: Chemical signals are received by the target cell on what? Choices: - acidic proteins - inceptor proteins - parent proteins - receptor proteins A:

Ans:receptor proteins
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Ques:Q: What structure connects the fetus to the placenta, allowing the exchange of gases? Choices: - sediment cord - skin cord - belly button - umbilical cord A:

Ans:umbilical cord
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Ques:Q: What is the exchange of plasmids by prokaryotes called? Choices: - biochemical transfer - artificial transfer - transcription - genetic transfer A:

Ans:genetic transfer
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Ques:Q: What two measurements are multiplied to find the area of a rectangle? Choices: - depth and width - volume and mass - length and depth - length and width A:

Ans:
length and width
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