Which blood type is referred to as the universal recipient? explain this reference in terms of the antigens of the donor and recipients.

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

Classify the structures as homologous or analogous, depending on their structure and function.

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except