Describe three practices that scientists use to learn about nature

How many laces are on a shoe

Inflammation is the process that occurs when your body destroys pathogens that it has previously encountered before the pathogens are able to cause disease. true

What are some important reasons for studying biology

Exophthalmos is a disorder caused by hypersecretion of T3 and T4 from the: a) pineal gland. b) thyroid gland. c) pancreas. d) gonads. e) parathyroid gland.

Which statement best describes the role of DNA in relation to RNA and proteins? A. DNA is made from RNA, which is created from proteins. B. Proteins are made from RNA, which is created from DNA. C.

Energy related usage in the United States makes up nearly what percentage of human-caused greenhouse emissions? A 57% B 63% C 72% D 85%

One function of the chromosomes in a cell is to A. absorb light and create energy for the entire organism. B. transport proteins throughout the cell and to other cells in the body. C. provide a location for protein synthesis inside the cell. D.

Consider the Ras signal-transduction pathway. Suppose a mutation occurred in the gene that encodes the transmembrane receptor to which a growth factor binds. The mutation no longer allows the growth factor to bind to the receptor.

Which of these have prokaryotic cells? A. snails B. bacteria C. frogs D. food

How can earths plates move