Q: Answer the following question given this paragraph: Bacteria that stain purple are called gram-positive bacteria. They have a thick cell wall without an outer membrane. Q: What are bacteria that stain purple are called? Choices: - gram-neutral bacteria - gram-negative bacteria - complex bacteria - gram-positive bacteria A:
A: gram-positive bacteria

Q: Answer the following question given this paragraph: A habitat that is quickly being destroyed is the wetland . By the 1980s, over 80% of all wetlands in parts of the U. S. were destroyed. In Europe, many wetland species have gone extinct. For example, many bogs in Scotland have been lost because of human development. Q: Bog destruction in scotland is an example of the widespread loss of what kind of habitat? Choices: - tundra - ocean - desert - wetland A:
A: wetland

Q: Answer the following question given this paragraph: The strength of acids is measured on the pH scale. A pH value less than 7 indicates an acid, and the lower the number is, the stronger the acid. Q: The strength of acids is measured on what scale? Choices: - Killalot - qcd - g - ph A:
A: ph

Q: Answer the following question given this paragraph: Wings and feathers are two adaptations for flight that evolved in birds. Both are clearly displayed in the flying gull in Figure below . Wings evolved from the front limbs of a four-legged ancestor. The wings are controlled by large flight muscles in the chest. Feathers also help birds fly. They provide air resistance and lift. In addition, they provide insulation and serve other roles. Q: Birds adapted wings and weathers for flight during what process? Choices: - migration - variation - emergence - evolution A:
A: evolution