Q: Which organ in the human body filters blood and excretes urine? Choices: - the liver - the bladder - the thyroid - the kidney A:
the kidney

Q: What oily substance prevents the hair and skin of living things from drying out? Choices: - pus - progesterone - pancreatic enzymes - sebum A:
sebum

Q: Q: Porifera are parazoans that exhibit simple organization and lack true what? Choices: - molecules - nuclei - cell membranes - tissues A:
A: tissues

Question: Q: Light with the shortest wavelength appears as what color? Choices: - red - green - blue - violet A:
Answer: violet

*Question*
Q: Once a plant cell becomes specialized, what can they no longer do? Choices: - photosynthesis - cellular respiration - osmosis - divide A:
**Answer**
divide

Q: Q: What controls earth's magnetosphere? Choices: - ionosphere - stratosphere - gravitational field - magnetic field A:
A: magnetic field