The main structural protein in the extracellular matrix and an important shared derived characteristic of animals is:
a. cellulose.
b. collagen.
c. tissue.
d. bones.
e. chitin.
b
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Cytosine, uracil, and thymine are single-ringed nitrogen-containing organic bases called ____________________
Fill in the blank(s) with correct word
You have been given a plant sample and asked to identify a specific tissue. Upon investigation, you find the cells are all long in length and some of them have small pores. They all contain fluid. You test the fluid using various biochemical tests and discover the fluid contains an abundance of disaccharides. What type of tissue are you looking at?
A. xylem B. phloem C. root hair cells D. sclerenchyma E. meristematic 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 the cellular compostition of different types of plant cells? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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
The closest living protistan relatives to animals are
a. poriferans. b. dinoflagellates. c. cyanobacteria. d. archaeabacteria. e. choanoflagellates.
Identify which of the operon elements plays the most critical role in determining gene regulation in prokaryotes.
What will be an ideal response?