A student is predicting whether the seeds of pea plants produced by the cross shows in the Punnett square will be green or yellow. Green (G) seeds are dominant, and Yellow (y) seeds are recessive. This cross will produce what percentage of offspring?

Which of these most likely determines if a mutation will become an adaptation in a species?

In a tropical rainforest, shrubs and plants grow better in areas where a canopy tree has fallen. Which most likely occurs in the area where the tree falls that helps the plants and shrubs grow taller?

In the 7th grade science class, the students planted wheat seeds to study the effects of sunlight on the growth of the plants. Each group was given two plants, which they put one in the light and one in the dark. Each group measured the growth of the plants every other day for three weeks and recorded the amount of time the plants were in their condition. What is the dependent variable?

There are many factors that influence the population changes of an ecosystem. Which of these does not influence population size in an ecosystem?

Which type of characteristics can be inherited?

Mendel's early work with pea plants demonstrated a significant genetic discovery. the crossing of homozygous tall pea plants with homozygous short pea plants always resulted in tall plants and demonstrated that tallness in pea plants is a trait that is -

Finches found on the isolated Galapagos islands are different species with different beak sizes and shapes, but are otherwise similar to a finch species found on the South American mainland. What might be the cause of the differences in the development of beaks of these Galapagos finces?

A rainforest area is experiencing a severe drought. As a consequence, the insect population has decreased. What will the insect-eating birds most likely do as a result of the drought?

Which is the most likely explanation for the change in the beaver population during period 2?

Genetic crosses involving a particular type of flower exhibit complete dominance with respect to petal color. Red (R) is dominant to white (r). Using the Punnett square, what is the expected percentage of offspring that will have white flowers fro a cross of parent flowers with a genotype of Rr.

The distribution of chromosomes for one type of cell division is shown in the diagram below. Which process types of cells are represented?

What is one advantage of sexual reproduction?

the diagram shows a sea star in various stages of regeneration. Which process is directly responsible for this regeneration?

In Deoxyribonucleic acid, cytosine pairs with the nitrogen base -

What forms the chemical code within a molecule of DNA?

DNA is sometimes referred to as a ladder. Which two molecules make up the sides of the DNA ladder?

Widow's peak (W) is a dominant trait. Straight hairline (w) is a recessive trait. If parents that are both hybrids (Ww) for the trait have 4 children, how many of the 4 children will express widow's peak?

In a genotype, what does the lower case letter represent?

Interphase is

According to the Punnett Square, what are the genotypes of the parents?

Which phase of mitosis is this?

What phase of mitosis is this?

Which genotype for flower color is a hybrid?

In the Punnett square, Black fur (B) is dominant over brown fur (b). What is the phenotype of all four offspring?

Of the traits listed in the chart, which are inherited traits?

Which statement best explains the similarities between the limbs?

Trilobite fossils have been found in rock that is 521 million years old. They have also been found in rocks that are more than 252 million years old. Trilobite fossils have not been found in younger or older rocks. What does this tell you?

Select each statement that explains why the fossil record is considered incomplete.

These images represent the limbs of extinct organisms found in the fossil record. Which is the youngest (most recent)?

Which of the following characteristics are controlled by a person's genes? Choose all of the correct answers.

Tightly wound bundles of DNA are called -

Tightly wound bundles of DNA are called –

What is the relationship between DNA and chromosomes?

Why are your chromosomes arranged in pairs?

Which statement is best supported by the graph?

This picture shows an ocean ecosystem. What would most likely happen if all the seaweed and aquatic plants were removed from this community?

The fossil record documents the _____ of life-forms throughout the history of life on Earth. Select each word that correctly completes the statement (3)

The fossil record documents the _____ of life-forms throughout the history of life on Earth. Select each word that correctly completes the statement.

Which of the following best describes what we mean when we talk about the fossil record?

Select each statement that explains why the fossil record is considered incomplete (3)

Look at the image attached. Fossils were discovered in four different layers of rock, A, B, C, and D. Choose the statement that does not belong.

Dogs can inherit four features: fur pattern, fur length, ear length, and tail length. The alleles are expressed as shown:

If a dog has solid colored fur, what must its genotype be?

Dogs can inherit four features: fur pattern, fur length, ear length, and tail length. The alleles are expressed as shown:

If a dog's genotype is Tt, what length would its tail (phenotype) be?

Dogs can inherit four features: fur pattern, fur length, ear length, and tail length. The alleles are expressed as shown:

Two dogs mate and have puppies. Both parent dogs are heterozygous for spotted fur. What is the probability of puppies that will have solid-colored fur?

A snapdragon produces either yellow or white flowers. The dominant allele (Y) produces yellow flower color and the recessive allele (y) produces white color. What combination or combinations of alleles could produce white flowers? Choose the one correct answer.

The hereditary material that controls all cellular activities is called

What forms the chemical code within a molecule of DNA?

Which two molecules make up the backbone of DNA?

What is interphase?

If one side of a DNA molecule read ATAAGGC, what would the other side be?

Which of these cell parts has DNA?

How many chromosomes does a human body cell have?

Which cell division is necessary to produce sperm and egg cells?

Which stage of the cell cycle has just finished?

Which would best allow a species to survive environmental changes?

What happens to a population and to competition when there is a reduction of living space?

Which best determines the number of wolves that can live in an area?