A lymphocyte is a type of white blood cell. White blood cells are part of your immune system and help your body fight off diseases, including infections and cancer. There are two main types of lymphocytes â B cells and T cells. B cells make antibodies that attack bacteria and toxins in the body.
- Mud, sand, and volcanic ash can make sedimentary rocks. bones leaves, stems, and other remains of living things. - Geologists classify metamorphic rocks according to the arrangement of the grains that make up the rock. - Metamorphic that have their grains arranged in parallel layers or bands are said to be foliated.
2. What is the name of the process in which rock layers in different regions are matched. 3. List the law of superposition and explain why it is only applied to sedimentary rock.4. How are cross-cutting relationships used in relative... show more 1. Explain how rocks allow geologists to interpret Earthâs history.hat is the name of the process in which rock layers in different regions are matched. 3. List the law of superposition and explain why it is only applied to sedimentary rock. 4. How are cross-cutting relationships used in relative... show more 1. Explain how rocks allow geologists to interpret Earthâs history.