A minerals__ is the appearance of its powder after the mineral has been dragged across a porcelain plate

A) color

B) luster

C) streak

D) contrast

Which of the following is a disadvantage of an in vitro experiment? O A. Results can be misleading. O B. A living cell is a complex chemical mixture. O C. Observations are easy to make. O D. An enzyme is never affected by other cellular components.

Adding heat to a liquid can cause it to a. change into a gas b. change into a solid c. change into another substance d. become a gel

The pericardial cavity: Group of answer choices a) is the region of the thoracic cavity that contains the heart. b) contains a lubricating fluid called serous fluid. c) is another name for the chambers of the heart.

Forward and upward movement of the upper arm at the shoulder and thigh at the hip are called flexion, movements in the opposite direction at these locations are called extension. In which anatomical plane do these movements take place?

People are unique among all creatures. True or False

give three examples of a stimulus and a possible response in humans

An acute staphylococcal infection with blister-like lesions containing millions of virulent bacteria is known as

Which of the following regions will be least affected by rising sea levels do to global warming? 1. Island nations 2. Arctic Climates 3. Coastal regions 4. Inland forested regions

The plasma membrane controls what enters and leaves the cell

What type of UV light is used during tanning beds and why is it so dangerous?