Through which plant structure does the majority of water evaporate?
a. Root nodules
b. Stoma
c. Leaves
d. Stroma
e. Root hairs
b
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Use the following information to answer the following question(s): You wake up one morning feeling slightly under the weather. A close family member enthusiastically suggests that you take some Echinacea, an herb commonly used as a cold remedy. You then decide to design an experiment to test Echinacea and see if this claim is true. You think, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms."Your statement, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms," is called a(n) ________.
A. observation B. theory C. conclusion D. hypothesis
The cells within a biofilm can undergo intra-species signaling; however, inter-species signaling does not occur
Indicate whether the statement is true or false.
In this figure of the amniote egg, which structure, A, B, C, or D, is the amnion?
1.A
2.B
3.C
4.D
Which of the following is a response of our innate defense system?
A) adaptive immunity B) inflammation C) cytotoxic T cell response D) helper T cell response