Echinoderms are characterized by bilateral symmetry in adults, a water vascular system, tube feet, and spiny skin.
a. true
b. false
F, radial
Biology & Microbiology
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A monogamous couple is researching birth control methods. They want children in the future, and the woman
currently has high blood pressure. Which birth control method would be best for them? What will be an ideal response?
Biology & Microbiology
Ritalin, like cocaine and amphetamines, acts by increasing the concentration of which neurotransmitter in neuronal synapses?
A) dopamine B) serotonin C) acetylcholine D) gamma-aminobutyric acid (GABA)
Biology & Microbiology
Scurvy is caused by a lack of which nutrient?
A) Calcium B) Vitamin D C) Vitamin C D) Omega-3 fatty acid
Biology & Microbiology
Nicotine synthesis is an adaptation of plant chemical defense against insects
____________________ Indicate whether the statement is true or false.
Biology & Microbiology