What is a physical or mental representation of an object or an event

Skeletal muscle: select one or more: a. is voluntary b. is striated c. has no nucleus d. is found primarily around organs and blood vessels e. must have nervous input to work f. is abundant in the heart wall g. is un-striated h. is involuntary

Why are satellites important?

1. True or false? Gametogenesis is the same as meiosis? 2. Name two types of gametogenesis and how they are different from each other. 3 Why is it important that only one viable egg cell is produced during meiosis in females?

Which of these is most complex and least complex tissue, organ system, cells, organism, organ

13. Name the 7 groups used in the Linnaean classification system

Which two inner planets have water in the form of ice?

Which sentences describe star clusters?

Which of the following is an advantage of nuclear energy over fossil fuels? A. Eliminates the need for mining. B. Uses a renewable energy source. C. Releases less CO2 waste products. D. Releases more CO2 waste products.

A cell with 46 chromosomes inside itsnucleus goes through one round of mitosis and cytokinesis. How manychromosomes are inside each of the two resulting nuclei?

The theory that explains how the earths surface is made up of moving rocky plates is called: A. Supercontinent B. Plate tectonics C. Sea floor spreading D. Continental drift