A source from which organisms generally take elements is called a/an

A. biotic community.

B. reservoir.

C. exchange pool.

D. food web.

Aliens from planet Moby have three alleles for skin color: R (red) W (white) and B (Blue). If all of these alleles are codominant and aliens on planet moby can only inherit two alleles for a gene, what are the six possible genotypes for skin color

Regions in the milky way where density waves have caused gas clouds to crash into each other are called

A mechanic applies a force of 60N at a distance of 80 cm from the pivot on a wheel wrench. What is the size of the moment?

Using steam tables, calculate the fugacity and fugacity coefficient of: (a) Superheated steam at 50.0 MPa and 500 ◦C. (b) Saturated liquid water at 200 ◦C. (c) Compressed liquid water at 20.0 MPa and 200 ◦C

Explaining how momentum can cause motion an astronaut on a space walk floats a little too far away from the space station. without air to push against, he cannot paddle back. however, the astronaut is holding a hammer.

To practice Tactics Box 10.1 Calculating the work done by a constant force. To find the work done on an object by a force, begin with a visual overview and follow Tactics Box 10.1.

the color of the sun appears to be orange or yellow when looking from the earth but it really is red. true or false

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? 1 - positive 2 - negative 3 - zore

Which object has the most gravitational potential energy? A. an 8 kg book at a height of 3m B. an 5 kg book at a height of 3 m C. A 5 kg book at a height of 2 m D. a book at a height of 2 m

A moving object has a kinetic energy of 150 j and a momentum with a magnitude of 30.0 kg•m/s. determine the mass and speed of the object