Unit Test — Cumulative exam Answers

Some flowering plants appear to have offspring that have traits that are intermediate between those of the parents. Which type of dominance is exhibited by the offspring?

A new multicellular organism has been discovered, and scientists want to study the organism’s cell structures, including organelles. Which microscope should they use?

Which describes one characteristic of both El Niño and La Niña?

If Mendel had crossed a true breeding dominant plant with a true breeding recessive plant, in which of the three generations is the recessive trait visible?

The diagram represents a dihybrid cross between two pea plants heterozygous for both seed color and seed shape.What is the phenotypic ratio of the offspring?

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionNucleusDirects cell activityEndoplasmic reticulumBreaks down sugar molecules to supply energyGolgi apparatusSupports and protects organelles in the cellLysosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

Which statements describe the characteristics of an individual protein? Select two options. It is specific to one biochemical reaction.It increases the activation energy needed for a reaction.It can catalyze many different reactions.It increases the rate of a biochemical reaction.It slows down the rate of a biochemical reaction.

The data in the graph are the result of a paramecium being placed in a hypertonic salt solution.Based on the data in the graph, which would most likely happen if the paramecium were placed in distilled water?

This picture shows the United States Arctic National Wildlife Refuge, a large portion of Alaska that is protected from human activities that would affect living things in the area as well as nonliving resources that support living things. Even though oil and other resources in the area could be collected and sold by humans to increase American wealth, construction is prohibited in the area.The most complex level of organizational hierarchy in the Arctic National Wildlife Refuge that is preserved is

Which is an issue that governments must consider before passing conservation policies?

How does conservation affect biodiversity?

Which is a cause of desertification?

Consider the classification levels of a human. EukaryaAnimaliaChordataMammaliaPrimatesHominidaeHomosapiensWhich is the most specific taxonomic level in the classification system above?

The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder?

Which shows the levels of organizational hierarchy listed from least complex to most complex?

Natural resources are classified as renewable and nonrenewable. What is the difference between the two?

Which is a natural factor that causes long-term climate change?

Which are different forms of the same gene?

The brain and spinal cord work together so the body can receive signals and react to the environment. What is the spinal cord?

Which is a negative effect of rising ocean temperatures?