*Question*
Q: What is the tough tissue that contains collagen?   Read this paragraph and choose the correct option from the provided answers:  Another distinguishing feature of vertebrates is an endoskeleton made of bone or cartilage. Cartilage is a tough tissue that contains a protein called collagen. Bone is a hard tissue that consists of a collagen matrix, or framework, filled in with minerals such as calcium. Bone is less flexible than cartilage but stronger. An endoskeleton made of bone rather than cartilage allows animals to grow larger and heavier. Bone also provides more protection for soft tissues and internal organs.   Choices:  - membrane  - muscle  - fiber  - cartilage   A:
**Answer**
cartilage

*Question*
Q: What takes place in the organelle known as the chloroplast, which distinguishes animal from plant cells?   Read this paragraph and choose the correct option from the provided answers:  Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesize. Photosynthesis occurs in two stages. During the first stage, the energy from sunlight is absorbed by the chloroplast. Water is used, and oxygen is produced during this part of the process. During the second stage, carbon dioxide is used, and glucose is produced.   Choices:  - digestion  - reproduction  - perspiration  - photosynthesis   A:
**Answer**
photosynthesis

*Question*
Q: Electric generators change kinetic energy to what type of energy?   Read this paragraph and choose the correct option from the provided answers:  Sources of voltage include electric generators and cells. Electric generators change kinetic energy to electrical energy. Chemical cells change chemical energy to electrical energy, and solar cells change solar energy to electrical energy.   Choices:  - thermal  - light  - intrinsic  - electrical   A:
**Answer**
electrical

*Question*
Q: Slime molds are fungus-like protists that grow as slimy masses on what?   Read this paragraph and choose the correct option from the provided answers:  Slime molds are fungus-like protists that grow as slimy masses on decaying matter. They are commonly found on items such as rotting logs.   Choices:  - recycled matter  - food matter  - dark matter  - decaying matter   A:
**Answer**

decaying matter