The first vertebrates appear in the fossil record during the
A. Cambrian Period.
B. Proterozoic Era.
C. Carboniferous Period.
D. Triassic Period.
E. Devonian Period.
A. Cambrian Period.
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What is the name of the of the newest technology that is likely to have a major impact on future evolution of not only humans, but also other organisms such as mice (so they cannot carry Lyme’s disease) and mosquitos (so they cannot carry Zika or malaria)?
A. IVF B. CRISPR C. TOASTR
In the ocean, swimming organisms that can move at will in the water column are referred to as
A) periphyton. B) zooplankton. C) megaplankton. D) nekton.
Palisade mesophyll is a tissue typically found on the side of the leaf toward the upper epidermis. Indicate whether the statement is true or false
What is the purpose of a test-cross?
a. A test-cross can demonstrate the efficiency of breeding. b. A test-cross can reveal an unknown internal phenotype. c. A test-cross can reveal an unknown genotype. d. A test-cross is just another term for an experimental cross between two unknown organisms. e. A test-cross allows a breeder to see how quickly it takes to go from generation to generation for a particular organism.