The simplest measure of community structure is a count of the number of species present and is referred to as species ________
Fill in the blank(s) with correct word
richness
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How do sphagnum mosses contribute to the carbon cycle? Select all correct choices
A. As decomposers, they release large amounts of CO2 into the atmosphere. B. They produce phenols, which release the carbon stored in peat bogs. C. As heterotrophs, they remove large amounts of CO2 from the atmosphere. D. They produce protons, which limit decomposition and CO2 production in peat bogs.
Comparative embryology helped clarify the relationships among major groups of animals. The bilaterians, for example, can be divided into the _____ based on the developmental fate of the blastopore
A. protostomes and deuterostomes B. coelomates and acoelomates C. coelomates and pseudocoelomates D. cnidarians and radiolarians E. protostomes and coelomates
An individual is said to be ________ if it has two copies of the same factor for a given trait.
Fill in the blank(s) with the appropriate word(s).
During the ingestion of food or liquid, which one of the following tips to block the opening to the trachea?
A) pharynx B) bronchi C) epiglottis D) bronchioles E) larynx