What type of physical weathering is caused by the expansion of water?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Which of these is one of the nitrogenous bases in dna? a. proline b. leucine c. glycine d. thymine

Explain the physiological changes that occur when the hypothalamus stimulates the sympathetic nervous system. you can make a flowchart or a simple step process. be sure to include all chemicals/hormones secreted, glands involved and the functions of each chemical/hormone.