What evidence is most important when using relative dating? a the position of fossils in sedimentary rock layers b the types of minerals in a petrified fossil c the position of sediment in petrified rock d the half-life of a radioactive element?

Configuración electrónica de potasio

What structure is located between the trachea and a bronchiole?

Which structure in the male reproductive system performs meiosis?

What are the taxonomy groups

Put the steps of mitosis in order from first to last. One should be the first step and 5 should be the last step from the lab. Prophase Interphase Metaphase Telophase Anaphase

Subjects with a serious illness may be at risk for exploitation because they may be desperate for a possible cure. This is an example of:

When two pink flowers (RW ) are crossed, there are four equally likely possible outcomes for the genetic makeup of the offspring: red (RR ), pink (RW ), pink (WR ), and white (WW ).

How does gene therapy affect a cell? A. Cells with functioning genes are replaced with mutated genes. B. Cells with normal genes are replaced with cells of defective genes. C. Cells with abnormal genes are replaced with cells of destructive genes. D.

The table below shows the fossils found in various layers of an undisturbed rock: Fossils In Rock Layers Layer (from top) Fossil in Layer 1 A, C 2 E 3 A, D, F 4 B 5 F, C 6 D, B Which is most likely an index fossil? A B D E

Explain what could happen to the community if all the frogs suddenly died. Which organisms will die? Which organisms will over populate? Why?