input: OPTIONS:
- fur or muscle
- skin or bones
- tendons or hair
- hair or fur Now, answer this question: Answer the following question given this paragraph: Mammals conserve heat with their hair or fur. It works like the layer of insulation in the walls of a house. It traps warm air next to the skin so it can't escape into the environment. Like the squirrel in Figure below , most mammals can make their hair or fur stand up from the skin. This makes it a better insulator. Mammals also have a layer of insulating fat beneath their skin. Other vertebrates lack this layer of fat. Q: What do mammals conserve heat with? A:
A:
output: hair or fur

Answer the following question given this paragraph: Animals are multicellular eukaryotes in the Animal Kingdom. They are heterotrophic, meaning that they consume other organisms. Animals have specialized cells and often higher levels of organization. This allows them to do things that other eukaryotes cannot, such as move and digest food internally. Animals generally have a simple life cycle. Q: What do heterotrophic animals usually consume? A:

OPTIONS:
- soil
- minerals
- plants
- other organisms

Answer: other organisms

Problem: OPTIONS:
- sponges
- nautilus
- cephalopods
- cnidarians
Q: Answer the following question given this paragraph: Cnidarians are invertebrates such as jellyfish and corals. They belong to Phylum Cnidaria. All cnidarians are aquatic. Most of them live in the ocean. Cnidarians are a little more complex than sponges. Besides specialized cells, they have tissues and radial symmetry. There are more than 10,000 cnidarian species, see Figure below . Q: What type of invertebrates are jellyfish and corals known as? A:
Answer: cnidarians

Problem:OPTIONS:
- perspiration
- precipitation
- photosynthesis
- respiration

Answer the following question given this paragraph: The process of getting oxygen into the body and releasing carbon dioxide is called respiration. Q: What is the process of getting oxygen into the body & releasing carbon dioxide called? A:
****
A: respiration

Answer the following question given this paragraph: The evolution of life on Earth wasn't always smooth and steadyfar from it. Living things had to cope with some astounding changes. Giant meteorites struck Earth's surface. Continents drifted and shifted. Ice ages buried the planet in snow and ice for millions of years at a time. At least five times, many, if not most, of Earth's living things went extinct. Extinction occurs when a species completely dies out and no members of the species remain. But life on Earth was persistent. Each time, it came back more numerous and diverse than before. Q: Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon? A:
OPTIONS:
- gravity
- waves
- depletion
- extinction
extinction

Answer the following question given this paragraph: Q: Macrophages and dendritic cells are types of what" A:
OPTIONS:
- amoena cells
- supercapacitor cells
- mast cells
- phagocytic cells

Answer:
phagocytic cells