What are the three main characteristics of fish?
A) eyes, tails, and a tracheal tubes
B) gills, fins, and scales
C) appendages, segmented body, and a brain
D) tentacles, foot tube, and gills
Ans: B) gills, fins, and scales
You might also like to view...
By evaluating the genome sequences of ____________, it is possible to compare sequences of two closely related species and determine the original sequence probably present in the common ancestor
Fill in the blanks with correct word
If the peptidoglycan layer is between two plasma membranes in an organism, that organism is ____
a. Gram-negative b. an archaean c. Gram-positive d. chemoautotrophic e. eukaryotic
Males and females often differ in their reproductive strategies due to the fact that males can increase
the number of offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
Although community composition changes during succession, diversity rarely changes
Indicate whether the statement is true or false