Explain how a dead organism may become a fossil.

A human female inherits A) 2 copies of every gene located on the X chromosome B) twice as many sex chromosomes as a human male inherits C) One copy of every gene located on the Y chromosome D) all of the same genes the human male inherits

All of the following affect the speed of sound underwater except a) temperature b) light c) pressure d) salinity

How does glucose cross into the cell?

How many different shapes of bacteria are there?

Molecules move in and out freely from high to low concentration

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.