During swallowing,
a) the tongue flattens to the bottom of the mouth.
b) smooth muscle in the esophagus contracts slightly.
c) salivary secretions stop. the hard palate rises to close the nasal passages.
d) the epiglottis bends to close the trachea.

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

How does an angiosperm prevent self pollination

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.