Based on the fluid mosaic model of the cell membrane, which type of molecule can move passively across the membrane, without the aid of proteins?

A. charged molecules

B. large polar molecules

C. macromolecules

D. nonpolar molecules

Chayse is working on analyzing the electromagnetic spectrum, focusing on ultraviolet rays. He determines that a UV ray has a frequency of 1.53 * 1016 Hz and a wavelength of 1.96 * 10-8 m. Are his results reasonable? Explain your answer.

A person riding in a hot air air balloon basket ascends to 1000 ft above the ground. What happened to the atmospheric pressure as the balloon ascended? A. It increased B. It stayed the same C. It decreased

Paragraph about cell wall

What statement is true about a spring?

What kind of destructive force or forces will most likely change the way Stone Mountain looks over the next million years? A) volcanoes B) landslides C) erosion and weathering D) earthquakes and faulting

What would result from under-coverage? A. a lack of accurate result B. an incorrect independent variable C. an experiment D. accurate result

What can be said about the force of gravity acting on an object that is floating stationary underwater and not moving up or down? A. The buoyant force equals the force of gravity, so there is no net force. B.

A frog in a hemispherical pod finds that he just floatswithout sinking in a fluid of density 1.25 g/cm3. If the pod has a radius of3.00 cm and negligible mass, what isthe mass of the frog?

What is the reasonable estimate for Lim g (x)

Do tides depend more on the strength of gravitational pull or on the difference in strengths? explain.