The correct sequence of the scientific method is
A) ask a question, observation, form a hypothesis, test a hypothesis, form a theory.
B) form a hypothesis, ask a question, observation, test a hypothesis, form a theory.
C) form a theory, ask a question, form a hypothesis, observation, test a hypothesis.
D) observation, ask a question, form a hypothesis, test a hypothesis, form a theory.
D
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For biological clocks related to seasons, the critical input is day length or ____
Fill in the blank with the appropriate word.
Insulin lowers glucose concentration in the blood, by binding to receptors on liver cells, adipose tissue, and skeletal muscle cells. What type of receptor does insulin bind to?
1.adrenergic receptor 2.G-protein–coupled receptor 3.internal receptor 4.receptor tyrosine kinase
The process by which pollen is transferred to the ovule is called
a. transmigration. b. fertilization. c. pollination. d. all of the above.
Which of the following organisms is BSL-2?
A) Staphylococcus aureus B) Lactococcus lactis C) Staphylococcus epidermidis D) Escherichia coli E) Klebsiella aerogenes F) Pseudomonas fluorescens G) None of these