Q: What do you call a structure composed of two or more types of tissues that work together to do a specific task? Choices: - cell - marrow - system - organ A:
organ

Q: What occurs when the immune system attacks harmless substances that enter the body from the outside? Choices: - cell rejection - anomalies - mutation - allergies A:
allergies

Q: Q: Which part of the brain secretes hormones that tell the pituitary gland either to secrete or to stop secreting its hormones? Choices: - cerebrum - hippocampus - thalamus - hypothalamus A:
A: hypothalamus

Question: Q: Photoautotrophs use what energy source to self-manufacture their own food? Choices: - water - chlorophyll - air - light A:
Answer: light

*Question*
Q: Rabies transmission occurs when saliva from an infected mammal enters a wound. the virus travels through neurons in the peripheral nervous system to the central nervous system where it impairs this? Choices: - lung function - skeletal system - reproduction system - brain function A:
**Answer**
brain function

Q: Q: Which is the final step of cell division? Choices: - genesys - Mitosis - electrolysis - cytokinesis A:
A: cytokinesis