Which molecular formula corresponds to this model of a chemical compound? (black = carbon; red = oxygen; white = hydrogen)

Cz (OH) 4

C2H204

C₂H4O2

C4H₂O2

Write the equation for the formation of maltose, a disaccharide, which consists of two blood glucose units. classify the reaction.

In a controlled experiment, why must all of the variables, except one, be kept constant throughout the experiment

1. what makes up sides of the ladder of a DNA molecule? 2. how is a RNA different from a DNA? 3. what role does RNA play in cell life 4. what are the three kinds of RNA and what does each do? 5. what can cause mutation?

The desert and tundra are alike because they both have A) extreme daily temperature changes. B) large seasonal variation. C) limited available water. D) sandy soils.

The hormone that prevents excessive water loss in the urine is called

What is the most accurate description of an ecosystem

Which feature do prokaryotic and eukaryotic cells share? A) nucleolus B) cytoplasm C) nuclear membrane Eliminate D) membrane-bound organelles

What are the kingdom's or eukaryotes?

Why is genetic drift more likely to occur in smaller populations?

The scientific method can easily be misinterpreted as a linear cookbook recipe for performing scientific investigations. True False