Which of the following is NOT true concerning blood typing?

OBlood typing is a source of individual evidence.

O Blood typing can eliminate suspects.

O Blood typing is faster and less expensive that DNA testing.

O Blood typing can be used in forensics as well as in determining parentage.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?