Q: Q: A structure composed of two or more types of tissues that work together to perform the same function is called? Read this paragraph and choose the correct option from the provided answers: The four types of tissues make up all the organs of the human body. An organ is a structure composed of two or more types of tissues that work together to perform the same function. Examples of human organs include the skin, brain, lungs, kidneys, and heart. Consider the heart as an example. Figure below shows how all four tissue types work together to make the heart pump blood. Choices: - Group - order - System - organ A:
A: organ

Q: Q: In order to survive and maintain what state, an organism must quickly adapt to changing environmental conditions? Read this paragraph and choose the correct option from the provided answers: In prokaryotes, a combination of activators and repressors determines whether a gene is transcribed. As you know, prokaryotic organisms are fairly simple organisms with much less DNA. Prokaryotic genes are arranged in operons , a region of DNA with a promoter, an operator , and one or more genes that encode proteins needed to perform a certain task. To maintain homeostasis (and survive), the organism must quickly adapt changing environmental conditions. The regulation of transcription plays a key role in this process. Choices: - ketosis - acclimatization - regulation - homeostasis A:
A: homeostasis

Q: Q: What do fish have that allow them to "breathe" oxygen in water? Read this paragraph and choose the correct option from the provided answers: Fish have gills that allow them to "breathe" oxygen in water. Water enters the mouth, passes over the gills, and exits the body through a special opening. Gills absorb oxygen from the water as it passes over them. Choices: - lungs - layers - pores - gills A:
A: gills

Q: Q: What developmental stage do alligators lack that most other amphibians have? Read this paragraph and choose the correct option from the provided answers: Young reptiles, like the baby alligator in Figure below , look like smaller versions of the adults. They don't have a larval stage as most amphibians do. Baby reptiles are able to move and search for food but are at high risk of predation. Adult reptiles rarely provide any care for their offspring once the eggs are laid. The only exceptions are female alligators and crocodiles. They defend their eggs and hatchlings from predators and help them reach the water. Choices: - Tadpole stage - metamorphosis - Egg Stage - larval stage A:
A: larval stage