Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds?

Flexible wrist

Flapping ability

Flight feathers

Primitive feathers

What is one way intensive agricultural practices contribute to climate change?

Scientific theories are explanations for scientific phenomena that can be changed when and if new information is found to support or refute the explanation. Which of the following statements provides an example of a scientific theory? a.

Which illness do some people describe as feeling like you'are breathing through a straw?

Automated external defibrillators (aeds) are used in cardiac arrest situations for:

What is one environmental factor that could cause a base sequence in dna to be changed to a different base sequence?

9. What are the major differences between P and S waves from an earthquake and which instrument do scientists use to measure these waves?

Part 1: Universal solvent Describe what happens in each beaker.

What will likely happen to the body if the joints are stiff, infected or not functioning as expected?

A child with a bloated belly, thin hair, and an inability to concentrate may be suffering from malnutrition

In most species, the female frog lays her eggs directly in the water as a male clasps her back and releases sperm. The fertilized eggs hatch into legless, aquatic tadpoles. Most tadpoles feed on algae, and have gills.