Muscle cells are stimulated by acetylcholine released from the terminals of
A. sensory cell dendrites.
B. sensory cell axons.
C. transverse tubules.
D. motor neuron dendrites.
E. motor neuron axons.
Answer: E
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Comb-jellies, or ctenophores, are similar to cnidarians in that they (select all that apply):
A. are radially symmetrical. B. have two tissue layers surrounding a gelatinous interior. C. differentiate muscle cells and a simple nerve net. D. digest prey within their gastric cavity. E. none of these
Based on the phylogeny shown, choose the true statements about evolutionary relationships (Select all that apply).
_____ A snake is more closely related to a newt than to a mouse.
_____ A newt is equally related to a snake and a chimp.
_____ A mouse is more closely related to a chimp than to a snake.
_____ A salamander is more closely related to a mouse than to a chimp.
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?
Gather Content
· What do you already know about cladistics?
Consider Possibilities
· Consider the different answer options. Which can you rule out?
Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Chromatin consists of ____
a. only DNA b. DNA and RNA c. RNA only d. DNA and associated proteins e. proteins only in the nucleus
Xylem is a vascular tissue that conducts dissolved sugars
____________________ Indicate whether the statement is true or false.