Which location receives 12 hours of daylight and 12 hours of darkness on june 21?

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.