Which organism was the first to develop in the absence of oxygen?

A.

algae

B.

cyanobacteria

C.

prokaryotic

D.

eukaryotic

This force involves the attraction between charged particles. A. strong nuclear B. Gravitational C. weak nuclear D. elctromagnetic

If a 4.0Ω resistor, a 6.0Ω resistor, and an 8.0Ω resistor are connected in parallel across a 12 volt battery, what is the total current of the circuit? 6.7 amps 18 amps 1.8 amps 3.6 amps

In the double-slit experiment with electrons, the electrons arrive at the screen in a A. Wave-like way with a pattern that is particle-like B. Wave-like way with a pattern that is wave-like C. Particle-like way with a pattern that is particle-like D.

Which could describe the motion of any object

What are sound waves

Wich of the following is a contact force? a. - friction b.-magnetism c.-gravity d.-electricity

Which substance might lead to potentially addiction if abuse

A body of mass 2kg is thrown up with a speed of 25m/s. Find its maximum potential energy.

Chang wants to build a circuit that will light up the bulb from a flashlight. Which component could Chang leave out and still light up the bulb? the switch the battery the wire the light bulb

Waves arriving at a fixed boundary are a. neither reflected nor inverted. c. reflected and inverted. b. reflected but not inverted. d. inverted but not reflected.