Which of the following statements is false?
a. Ice is denser than liquid water.
b. All living organisms require water.
c. Water has cohesive properties.
d. Water is a liquid at room temperature.
e. All of the above are false.
Answer: a
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In which of the following does the environment play a causal role?
a. Marfan syndrome b. cystic fibrosis c. dog coat color d. sickle-cell anemia e. depression and schizophrenia
Each of the following statements regarding CD95-stimulated programmed cell death is true except
A) CD95 ligand binding with CD95 receptor stimulates recruitment of adaptor proteins. B) adaptor proteins stimulate the PI3K-Akt pathway. C) recruitment to sites of receptor clustering activates initiator caspase (caspase 8) activity. D) initiator caspases proteolytically cleave executioner procaspases (procaspase 3). E) a caspase cascade results in the cleavage of many types of proteins in the target cell.
what does macrophage secrete?
What will be an ideal response?
Current research indicates that hominins originally evolved in which continent?
A) Australia B) Europe C) Africa D) Asia E) North America