What is the most significant difference between Precambrian and Paleozoic life-forms?

A boat is placed in the James River, near Richmond, and then put it in the Atlantic Ocean, near Virginia Beach. 1. Where would it float easier (higher buoyancy) ? 2. Why would have a higher buoyancy?

An example of a communicable disease is: a. cancer b. chronic respiratory disease c. diabetes d. giardiasis

Richard was observing black swallowtail butterflies in the field. which one of these is an observation he made about a black swallowtail butterfly?

Which most likely appears brightest from Earth?

What would a developmental psychologist say about a young child who throws a temper tantrum?

In order to grow, all organisms must

The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell.

What similarity do animals and plants share?

This is a model of a bacterial cell. What statement about the structure and function of bacterial cell parts is correct? A) DNA is contained in a primitive nucleus. B) Energy for movement is generated in the pilli.

How can the locations where ancient fossils are found be used as evidence for continental drift