Underground mammals, such as the ancestors of moles, are thought to have first evolved as the dinosaurs died out.

Which effect of an environmental change does this best illustrate?

migration

loss of habitat

change in behavior

speciation

The city council is going to decide on whether or not to spray a certain insecticide for mosquito control. Many other towns already use this insecticide but your town wants to research the topic before they make a decision.

A 2000 kg truck is at rest at a stop sign. A 1100kg car collides head-on with the truck. The car was moving at 15.0m/s before the collision if the collision was completely inelastic, what is the velocity of the car and the truck after the collision?

A motorcyclist rides for 1.5 hours at a speed of 80 km/h. Then she encounters traffic and rides 20 km at an average speed of 25 km/h. What total distance did she cover?

Convert $56,600 per year to dollars per hour. Assume only 37 weeks of work in the year, and 40 hours per week

The acceleration of an object is equal to the net acting on the object divided by the objects

True or False? Gases such as water vapor condense when they are * heated*.

If a chromosome on unfolds itself how is transcription enhanced

Two friends, barbara and neil, are out rollerblading. with respect to the ground, barbara is skating due south at a speed of 5.9 m/s. neil is in front of her. with respect to the ground, neil is skating due west at a speed of 1.4 m/s.

What process is used when the sun transfers light to plants A. conduction B. radiation C. convection D. all of these

Which wave characteristic has the unit hertz