Define determination and differentiation
What will be an ideal response?
Determination is the early commitment of a cell to an eventual developmental fate. Differentiation is the set of functional and structural changes associated with the expression of that developmental fate.
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Recall that two different groups of angiosperms exist. The ____ produce seeds that form a single cotyledon, and the seeds of ____ produce two cotyledons
Fill in the blank with the appropriate word.
What kinds of molecules pass through a cell membrane most easily?
A) large and hydrophobic B) small and hydrophobic C) large polar D) ionic
The most abundant gas in the atmosphere is oxygen
____________________ Indicate whether the statement is true or false.
Which component of the lower respiratory tract is incorrectly matched with a function or description?
A) alveoli: site of gas exchange B) lungs: contain the alveolar sacs C) bronchi: direct air to the lungs D) bronchioles: have ciliated mucous membranes E) larynx: contains the mucociliary escalator