Trace fossils, like coprolite and gastrolith, can tell us what?

A. that an organism was once active in an area

B. typical number of dinosaur eggs in a nest

C. exactly how big an organism was

D. that an organism was never active in the area

What is the main difference between a producer and consumer

Two ships are can only unload their cargo during high tide due to a shallow harbor. It is LOW tide at a harbor at 9:00 am. After the first ship unloads, the tide is already going out and the second ship must wait for the next high tide.

What is the function of the cellular structure labeled "A" in the diagram below.

Where in an embryo are the instructions located for how to build organs? A. Amino acids B. Nucleus C. Endoplasmic reticulum D. Ribosomes

What is the Purpose/Function of the Chorion in mammals?

What problem is most directly caused by burning waste? A. Groundwater pollution B. Air pollution C. Lake pollution D. Ocean pollution

How are currents in the Pacific Ocean affected by El Niño? Currents travel more slowly. Rip currents are frequently formed. All currents become deep ocean currents. Warm water moves to the east instead of to the west.

Which statement accurately describes Darwin's experience on the Beagle? A. He had a eureka moment and understood how species evolve. B. He recognized the significance of each species he observed. C.

How are hydrogen bonds different from covalent bonds? A) The atoms in hydrogen bonds have valence electrons B) The compounds that result from hydrogen bonds contains carbon C) Covalent bonds are organic D) Hydrogen bonds are weaker than covalent

What would your superhero element look like? iron man.