Rita has oily skin. Which secretion that acts as a waterproofing agent for the skin and hair follicles does she produce in excess?

sebum

sweat

cerumen

collagen

When were Earth's landmasses first recognizable as the continents we know today? a) 10 million years ago b) 135 million years ago c) 180 million years ago d) 300 million years ago

Unlike prokaryotic cells eukaryotic cells have the ability to

two pea plant with yellow peas are crossed most of their offspring have yellow peas but about 25% of the offspring have green peas for pee color yellow is the dominant trait in green is the recessive trait what does this tell you about the two

Which of the following is NOT a pyrimidine? guanine cytosine thymine none of the above

Which is the coldest biome on Earth's surface?

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.

In what way are slime molds similar to kelp?