Q: The thalamus acts as a gateway to and from what? Choices: - pons - medulla oblongata - spine - cortex A:
cortex

Q: What part of the sperm contains the genetic material? Choices: - the " body " - the " tail " - the " brain " - the "head" A:
the "head"

Q: Q: What is an electrically neutral compound with positive and negative ions? Choices: - correlated compound - isotope - neutralized molecule - ionic compound A:
A: ionic compound

Question: Q: Most of the pathogens that cause stis enter the body through mucous membranes of which organs? Choices: - eyes - kidneys - stomach - reproductive organs A:
Answer: reproductive organs

*Question*
Q: Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place? Choices: - stoma - cuticle - phloem - epidermis A:
**Answer**
epidermis

*Question*
Q: Like mammals and birds, and unlike other reptiles, crocodiles have how many chambers in their heart? Choices: - one - six - two - four A:
**Answer**
four