For scientific data to be considered accurate and reliable, most scientific experiments should be -

What is the correct mass for the can?

The metric units of milliliter and liter are used to measure -

The metric units of gram, kilogram, and milligram are used to measure -

The metric units of meter, centimeter, and kilometer are used to measure -

The metric units of Celsius and Kelvin are used to measure -

Identify the dependent variable in the hypothesis

Hypothesis: If I spend more time at the gym then I will get in better shape.

Factors in an experiment that must be kept the same are called-

The independent variable is found on which axis

The tropical rain forest has an average daytime temperature of 34C. The tundra has an average summer temperature of 12C. The tropical rain forest receives an average yearly rainfall of 400 cm while the tundra receives 42 cm per year. Which of the following conclusions would be most valid considering this data?

How many chromosomes are normally found in a human sex cell?

In order for life to continue, DNA must-

Who saw X-ray photograph of DNA

Who studied pea plants to determine how traits are passed on

Who made 3D model of DNA

Which statement was NOT included in the cell theory?

If a typical body cell has 46 chromosomes, meiosis will produce sex cells with how many chromosomes?

Which structure on the image is unique only to plant cells?

The jelly like substance in the cell is -

The first scientist to use the term "cell" after looking at a cork under a microscope was -

Which is not a step in Mitosis?

Describe the movement of water molecules when an egg is placed in a container of distilled water.

The levels of organization in order from the simplest to the most complex are -

What raw materials are needed for photosynthesis to occur?

Which organelle from the plant cell is primarily responsible for completing cellular respiration?

What traits could represent the phenotype of an organism?

All of these can be inherited by people EXCEPT —

When scientists alter the genetic code of an organism, it is called -

In Deoxyribonucleic acid, cytosine pairs with the nitrogen base

Which is not a main component of DNA?

According to the Punnett square, all four offspring are hybrids. This means that both parents must be —

Homozygous or heterozygous? TT

In guinea pigs, brown fur (B) is dominant over white fur (b). Design a Punnett square to demonstrate the possible outcome if a purebred brown guinea pig is crossed with a purebred white guinea pig. What percentage of the offspring will have white fur?

When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called —

What is it called when all of the organisms of a species completely die out?

Who proposed the theory that evolution happens as a result of natural selection?

Mistakes or changes that occur in the DNA sequence are called —

Both of these birds were originally the same species. Overtime, however, the two birds began to live in different environments and eat different types of food. What were these changes in beak and feather color caused by?

What type of cells do the domain classification of Bacteria contain?

Grouping organisms into domains is not based on —

What is NOT one of the four major kingdoms of life?

Ferns are classified as —

Which characteristic is used to classify frogs into a different phylum from squid, snails, and jellyfish?

For an organism to be classified in the animal kingdom, which characteristic must the organism have?

Which scientist developed the system of classification known as binomial nomenclature?

Which is the best example of two animals behaving cooperatively together?

Which of the following represents a population

In the relationship between a snake and a frog, if the snake eats the frog, the frog is —

The second consumer in the energy pyramid is the —

Organisms that absorb nutrients from dead plants and animals are called —

According to the energy pyramid, the organism that obtains the most energy is—

Grass, trees, and animals?

Temperature, salinity, and wind speed

Something in the environment that keeps a population from growing is called —

If a forest fire kills all the producers and decomposers in the shown food web, which levels would be affected?

Eutrophication causes a water system to become cloudy, changing the water to a color shade of green, yellow, brown, or red. The growth of what organism causes the water system to become cloudy?