Only mutations in __________ cells matter in terms of evolution because they can be inherited by the offspring.
Fill in the blank(s) with the appropriate word(s).
Reproductive
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Which of the following statements about hydrostatic skeletons is false?
A. Longitudinal muscle contractions increase the length of the body cavity. B. Hydrostatic skeletons are found in many vascular plants and almost all multicellular animals. C. Movement is produced by muscles that exert pressure against a fluid-filled cavity. D. Intervertebral discs and cartilage are examples of hydrostatic elements in the vertebrate skeletal system. E. Circular and longitudinal muscles function as antagonists.
You have been assigned to analyze some extraterrestrial material recently collected from Mars. After examining a sample using a microscope you jump up excitedly and shout to your colleagues that you have confirmed the existence of life on Mars. One of your colleagues takes a look at your sample and remarks that all he sees is a single-celled "blob" with little internal structure. Assuming that life on Mars can be classified into similar domains and kingdoms as Earth, to which domain does your "blob" belong?
A. Archaea B. Fungi C. Protista D. Animalia Clarify Question 1. What is the key concept addressed by the question? 2. What type of thinking is required? 3. What key words does the question contain and what do they mean? Gather Content 1. What do you know about different domains?How does it relate to the question? Consider Possibilities 1. What other information is related to the question? Which information is most useful?If the only clue was single celled which could be correct? Choose Answer 1. Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process 1. 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?
Sponges obtain food by ________
a. poisoning prey with a mixture of conotoxins b. capturing prey with tentacles equipped with stinging nematocysts c. trapping prey with the villi of collar cells d. photosynthesis
The origin of a muscle is on a stationary bone.
Answer the following statement true (T) or false (F)