Q: X and y are the labels of what specialized human chromosomes? Choices: - carb chromosomes - exotic chromosomes - protein chromosomes - sex chromosomes A:
sex chromosomes

Q: What are the closest relatives to modern angiosperms? Choices: - staurikosaurus - mitochondria - sporozoans - gnetophytes A:
gnetophytes

Q: Q: What type of animals breathe with gills as larvae and with lungs as adults? Choices: - insects - reptiles - mammals - amphibians A:
A: amphibians

Question: Q: Changes from a less-ordered state to a more-ordered state (such as a liquid to a solid) are always what? Choices: - unbalanced - reactive - endothermic - exothermic A:
Answer: exothermic

*Question*
Q: Methanogens in their gut enable what process in cows? Choices: - absorption - excretion - regeneration - digestion A:
**Answer**
digestion

Q: What branch of science is the study of matter and energy? Choices: - unnatural science - natural science - negative science - physical science A:
physical science