All organisms use DNA as their genetic material. This type of support for evolution would be from the field of __________.
a) biogeography
b) fossils
c) anatomy and embryology
d) molecular biology
Ans: d) molecular biology
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Explain how both biochemical oxygen demand and chemical oxygen demand are measured
What will be an ideal response?
Some strategies for protecting endangered species include the use of DNA profiling to identify illegally traded animal parts and assisted reproduction techniques to help boost population numbers. These techniques are examples of _____
a. biotechnology b. gene pooling c. biosynthetics d. environmental forensics e. DNA cloning
People who have a single X chromosome are female, while those with XXY sex chromosomes are males. In order to be a female, a human
A. cannot have an X chromosome. B. must have only one X chromosome. C. must have two X chromosomes. D. cannot have a Y chromosome. E. must have only one Y chromosome.
When top-down control occurs within an intertidal zone along the rocky coastline of the Pacific Ocean, which of the following species controls the abundance of other species?
A) kelp B) mussels C) barnacles D) starfish