Explain what causes the growth ridges found on the shells of bivalves.
What will be an ideal response?
Growth ridges result from the deposition of material during periods of restricted winter growth. Since successive layers of materials are deposited between periods of little growth, these layers build up to form an annual ridge similar to the dark growth rings representing restricted winter or dry season growth in trees.
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The total genetic complement of ALL cells within a microbial community is called a(n)
A) chromosomal island. B) interactome. C) metagenome. D) metabolome.
Which of the following statements is the most accurate description of fruits and seeds?
A. "Fruits" and "seeds" are synonymous terms. B. Fruits always have fleshy coverings, while those of seeds are always hard. C. Fruits are structures that contain seeds and foster seed dispersal. D. Fruits contain endosperm but seeds do not. E. Fruits are produced only by angiosperms and seeds are produced exclusively by gymnosperms.
Answer the question using the accompanying figure. The fruiting body is the structure with the label ____
a. A b. B c. C d. D e. E
The cells that the body uses for rapid communication and control are ____
a. dendrites b. glial c. myocytes d. neurons e. chondrocytes