Q: Processes in which matter changes between liquid and solid states are freezing and? Choices: - boiling - steaming - transpiration - melting A:
melting

Q: Macrophages, which can swallow and destroy old and dying cells, bacteria, or viruses, are large types of what cells? Choices: - red blood cells - white brain cells - dendritic cells - white blood cells A:
white blood cells

Q: Q: What is the least dangerous radioactive decay? Choices: - beta decay - gamma decay - zeta decay - alpha decay A:
A: alpha decay

Question: Q: A major step in animal evolution was the evolution of what rigid rod that runs the length of the body? Choices: - limbic system - endoderm - mitochondria - notochord A:
Answer: notochord

*Question*
Q: Due to the __________ nature of the lipids that make up cell membranes, polar molecules (such as water) and ions cannot easily diffuse across the cell membrane. Choices: - hydrophylic - saturated - catalytic - hydrophobic A:
**Answer**
hydrophobic

(Q).
Q: During photosynthesis what organelle is used by plants to change sunlight into chemical energy? Choices: - mitochondria - golgi apparatus - ribosome - chloroplasts A:
(A).
chloroplasts