Three students decide to test what factors influence water absorption by an egg. They remove the shell from 3 eggs by dissolving them in vinegar. They create three different water solutions. One is pure, 100% distilled water, a second is 50% water/50% corn syrup, and the third is 100% corn syrup. The mass of each egg is measured before they are put into a single solution for 24 hours. The mass of the eggs is then measured, and the data recorded in the data table.

This group also recorded a dependent variable, which is represented by

Three students decide to test what factors influence water absorption by an egg. They remove the shell from 3 eggs by dissolving them in vinegar. They create three different water solutions. One is pure, 100% distilled water, a second is 50% water/50% corn syrup, and the third is 100% corn syrup. The mass of each egg is measured before they are put into a single solution for 24 hours. The mass of the eggs is then measured, and the data recorded in the data table.

Based on the data this group gathered, the most appropriate hypothesis would be

A golf club company has four models of golf clubs. Average strokes saved per 18 holes is a positive indicator of quality (the more strokes saved, the better the golf clubs). The manufacturing time per set is a measure of how long it takes to manufacture one set of clubs. If the company wishes to produce a lot of golf clubs quickly, which set would be the best choice to meet their criteria?

In a hypothesis the __________________ variable is what is being tested, while the _________________ variable is the one being measured in response

The four main types of macromolecules found in organisms are carbohydrates, lipids, nucleic acids, and

Which characteristic is not common to both prokaryotic cells and eukaryotic cells?

In the cell, which organelle releases cellular energy (ATP) from food?

What part of the cell makes proteins?

If a cell has 8 chromosomes, how many chromosomes will each of its daughter cells have after mitosis?

Which plant cell organelle uses light energy to produce sugar?

Identify the products in this reaction:

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

The process of cellular respiration is ___, meaning that it _____.

During photosynthesis, different gases move in and out of plant cells. Which phrase best represents the net flow of gases involved in photosynthesis?

The following organisms make up a food chain:

algae -> fish-> bear. If you were to place the bear into the trophic pyramid to the right, the bear would go on level _____ and have ________ amount of energy available to it.

In humans, where does DNA replication take place?

Which cells are NOT formed during meiosis?

Sex cells in humans contain ____ chromosomes and an example is ______.

During _____________, the cell uses information from messenger RNA to produce proteins.

In which phase of meiosis would certain gene segments of the homologous pairs of chromosomes "crossover" and exchange genetic information?

Two heterozygous purple-flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic results?

Two parents have the genotype Rr for a genetic disorder caused by a recessive allele.  What is the chance that any of their children will inherit the disorder?

For an XX female to express a recessive sex-linked trait, she must have

Human height occurs in a continuous range because it is affected by the interaction of many genes, making it a(n)

Red hair and freckles are commonly inherited together.  Which of following patterns of inheritance explains this?

In order for a mutation to be passed on from parent to offspring, the mutation must occur in

The appearance of a certain trait (how it looks) in an organism is known as its

Certain traits can only be expressed when two copies are present, since they can be masked by other traits.  These traits are said to be

Some flowers show incomplete dominance. If RR = white and R’R’= red, which phenotypic ratio would be expected in the offspring of two pink flowers?

Mutations that impact a whole group of genes, meaning along a large segment of DNA, are known as

Genetic diversity is ultimately/mainly the result of

A population of bacteria is treated with hand sanitizer.  Because of genetic variation in the population, what is a possible outcome?

One of the biggest ways that a species evolves is because some organisms with some traits survive and reproduce better than others.  This process is known as

An adaptation is

Which animal is most closely related to Ursus americanus?

Which of the following does NOT increase genetic variation?

Which of the following is not an example of evolution?

Individuals that are well adapted to their environment will survive and produce

Natural selection results in change over time by acting on traits that are

Fossil evidence shows that structures considered vestigial in living organisms

Which of the following is NOT a characteristic of a living thing?

Humans increase carbon dioxide (CO₂) in the atmosphere, and contribute to the carbon cycle by

What is one biotic factor that affects the size of a population in an ecosystem?

What type of population growth is shown in the graph?

Bacteria are involved in many steps of the geochemical cycles. Which of the following steps are bacteria NOT involved?

Which factor is a density-dependent limiting factor on the population of a species?

Tapeworms feed off of their host organism.   This makes them a __________.

Grazing cows disturb grass and cause insects to fly around the cows as they eat.  In turn, birds swoop in and eat the insects.  This type of feeding relationship between the birds and the insects is an example of

One difference between parasitism and predation is that parasites

Organisms that are the first to move into an area, and begin forming soil for an ecosystem, are known as

A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted.

What is the independent variable in this experiment?

A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted.

What is the dependent variable in this experiment?

A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted.

What are 3 constants in this experiment?

A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted.

What was the control group?

Proteins are used for

Nucleic acids are used for

Lipids are used for

Carbohydrates are used for

In tomatoes, yellow fruit and dwarf vines are recessive traits.  Red fruit and tall vines are dominant. If a homozygous dominant red and homozygous dominant tall plant is crossed with a heterozygous red and dwarf plant, what is the phenotypic ratio?

In tomatoes, yellow fruit and dwarf vines are recessive traits.  Red fruit and tall vines are dominant. If a homozygous dominant red and homozygous dominant tall plant is crossed with a heterozygous red and dwarf plant, what percent/ratio of the offspring will be totally heterozygous?

In tomatoes, yellow fruit and dwarf vines are recessive traits.  Red fruit and tall vines are dominant. If a homozygous dominant red and homozygous dominant tall plant is crossed with a heterozygous red and dwarf plant, what percent/ratio of the offspring will have yellow fruit and dwarf vines?