Mike and Tim are outside with a wagon. Tim weighs 311 Newtons (70lbs) and gets in the wagon and Mike, who weighs 50 Newtons (50lbs), pulls it. As Mike pulls it, he accelerates until reaching a constant velocity. After stopping, Mike and Tim switch places. Tim now pulls Mike in the wagon, accelerating from a stop to a constant velocity. Now, Tim may be bigger than Mike, but Mike has been working out and is just as strong as Tim, so the force that Tim uses to pull the wagon is the same force that Mike used. Both pull with the exact same amount of force. Who was riding in the wagon when it had the greatest acceleration during start up? Why? Use Newton’s second law to explain

Select the correct answer. a chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. what is the type of inheritance pattern?

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.