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

The coolest and dimmest space objects emit radiation of longer wavelengths than those we can see. A detector for which type of electromagnetic radiation is most suitable to study cool dim stars? Gamma ray Infrared Ultraviolet X-rays

1. Biologists in Darwin's time had already begun to understand that living things change over time. how did darwin contribute to these ideas? a. He found many fossils that showed that these changes could not possibly happen on islands b.

Are lipids a type of fat?

Which of the following can be seen as an indication that intelligence has a strong genetic basis? A. Though reared in a book-free environment, Jason loves reading and is an excellent student. B.

Eversion is performed by which of the following muscles?

Identify the components of seawater

Glycogen belongs in the class of molecules known as

1. The concentration of sugar is higher inside a cell than outside the cell. The concentration of water inside the cell is lower than it is outside. Sugar cannot pass through the cell membrane.

Which describes the variable that is changed to test the prediction? A) dependent B) experimental C) control D) independent

What is used to classify the layers of the atmosphere? Question 1 options: Differences among temperature altitude, and weather Differences among temperature, air pressure, and density Differences among altitude, wind speed, and weather How far away