Q: What do mammals conserve heat with? Choices: - fur or muscle - skin or bones - tendons or hair - hair or fur A:
hair or fur

Q: What do heterotrophic animals usually consume? Choices: - soil - minerals - plants - other organisms A:
other organisms

Q: Q: What type of invertebrates are jellyfish and corals known as? Choices: - sponges - nautilus - cephalopods - cnidarians A:
A: cnidarians

Question: Q: What is the process of getting oxygen into the body & releasing carbon dioxide called? Choices: - perspiration - precipitation - photosynthesis - respiration A:
Answer: respiration

*Question*
Q: Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon? Choices: - gravity - waves - depletion - extinction A:
**Answer**
extinction

Q: Macrophages and dendritic cells are types of what" Choices: - amoena cells - supercapacitor cells - mast cells - phagocytic cells A:
phagocytic cells