Which contribution to the body of scientific knowledge is most recent?

the development of the lever

the confirmation of the double-helix structure of DNA

the discovery of electricity

the theory of evolution

The major difference between earth and other planets in our solar system is that

A new sewage pipe empties raw sewage into a nearshore coral reef. Which graph shows the expected immediate impact of this change?

A client takes a home pregnancy test. While she is waiting to read the results, her phone rings. When she gets off the phone 15 minutes have passed.

An organism that reproduces using binary fission, a type of asexual reproduction, creates an identical copy of a cell when A. the DNA strand breaks and the cell divides, giving each new cell half of the DNA. B.

1) The genetic material is duplicated 2) Chromosomes move to opposite ends of the cell 3) Chromosomes become visible; the spindle apparatus forms 4) The cell plate forms;

Why is DDT so hazardous? A:it does not decompose fast B:it killed almost everything C: it traveled to many continents through water

What is kind of cell does the plants has

Which structures are found in fungi? Check all that apply. cell walls hyphae cilia leaves nuclei spores

Patsy has always been "larger than life." She tends to blow even small annoyances out of proportion. For example, when the store didn't have the dress she wanted for prom, it was the "end of the world.

What is the advantage of having a folded membrane surrounding the cell, within the cytoplasm, or within an organelle?