Which of these is a segment of dna that contains the information necessary to produce a protein? a. a base b. a gene c. a codon d. a chromosome?

How can you tell the difference between rough er from smooth er?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3

The image shows a group of fish. the type of social behavior shown in the image is called