Q: Uranium is an important part of the process used to harness which type of power? Choices: - gravitational - solar - wind - nuclear A:
nuclear

Q: A nerve cell that carries messages is called a? Choices: - mitochondria - stem cell - platelet - neuron A:
neuron

Q: Q: Name the type of system that a jellyfish does not have? Choices: - nervous - reproductive - hereditary - circulatory A:
A: circulatory

Question: Q: What may be the ancestor of placental mammals? Choices: - fungi - spirogyra - amphibians - eomaia A:
Answer: eomaia

*Question*
Q: What are chromosomes in the same pair called? Choices: - homogeneous chromosomes - regulated chromosomes - reversible chromosomes - homologous chromosomes A:
**Answer**
homologous chromosomes

*Question*
Q: Are birds and mammals mainly exothermic or endothermic? Choices: - autotrophic - hypothermic - exothermic - endothermic A:
**Answer**
endothermic