If urine is the waste product in the bladder that is excreted by the urinary system, then urine is a product of what organ of the body that is excreted by the urinary system? Answer choices: - bowel - epidermal - bladder - alveoli - lungs - urine - mammals - NaCl
bladder

If dna is required for life, then what is required for life? Answer choices: - dna - RNA - food - money - lead - ovum - ova - gasoline
dna

Q: If birds secrete estrogen to attract a mate, then what do birds secrete to attract a mate? Answer choices: - Energy. - Energy - fur and fat - seeds - oxygen - pollen - Estrogen - acetic acid
A: Estrogen

Question: If leukemia is a disease that occurs when the cell cycle is no longer regulated, then what is a disease that occurs when the cell cycle is no longer regulated? Answer choices: - dangerous - illness - Smoking - Mumps - Leukemia - parasites - Measles - Diabetes
Answer: Leukemia

*Question*
If leaves that keep the plant from drying out are used for storing water by some plants, then leaves that keep the plant from what are used for storing water by some plants? Answer choices: - drying out - absorbing liquid - bacteria - cold air - staying damp - dormant state - toxins - keeping moist
**Answer**
drying out

*Question*
If plants require water to live, then what does a plant need to live? Answer choices: - oxygen - energy - grow - Sun - water - rocks - ozone - air
**Answer**
water