A single strand, twisted back on itself like a hairpin, best describes

Question 8 options:

1: What is the best way to compare the ages of layers from the two different locations? A: by using the law of superposition to compare the rate at which the layers formed B: by using radioactive dating to compare the age of the rocks in different

Whats a organelle you can see in a plan cell that you did not see in a animal cell?

Which characteristic most distinguishes nongovernmental organizations (ngos) from intergovernmental organizations (igos) ?

A man who smokes heavily has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, making them unable to stop reproducing and dividing.

Is lysozyme physical, chemical or biological?

Exotic pets, such as lizards and tarantulas, have increased in popularity. These animals are caught in the wild and sold as pets. What are two possible effects this action can have on biodiversity?

How do ice ages affect the surface of the Earth?

Which of earth s spheres includes mammals, fishes, and birds? hydrosphere biosphere atmosphere geosphere?

How fast does the human heart beat when under stress?

a. a small structure within a cell. b. a structure composed of several tissue types. c. the basic structural unit of all living organisms. d. a group of organs with a common set of functions. e. a group of cells with similar structure and function.