Explain two reasons how and why Alfred Wegener initially theorized that continents may have been joined at one time.

Real life example of a chromosome

Which Of the following is not a part of overall biodiversity a. species diversity b. genetic diversity c. individual diversity d. ecosystem diversity

If an endothermic reaction is in Equilibrium, What will happen when you increase the temp? a. More reactants form b. more products form c. no change in the amounts of products and reactants occur d. the system does not reach equilibrium again

Scientists rely on ___concepts when researching crop population and medicine

Sensory information is detected by what kind of cells?

What is the difference between covalent bonds and ionic bonds? A) Covalent bonds are formed between atoms to form molecules; ionic bonds are formed between atoms to form compounds.

Although trees like this one begin life as a seed, throughout growth and development the cells of the organism continually change. As a mature tree, several layers of cells in the secondary xylem or wood of the trunk are

1. The formula for calculating the surface area of a cube is: SA = length * width * number of sides (6) Therefore, the surface area of a cube that is 1 cm on a side is 1 cm * 1 cm * 6 sides = 6 cm2 2.

On average, what percentage of our daily calories comes from sweets, sodas and fruit drinks, alcoholic beverages, and salty snacks?

The sun rises in the east and sets in the west." which of these statements is correct about this law of science? it is a theory which is unreliable. it is a statement based on experimentation. it is a fact in nature which can be contradicted.