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WorksheetsPop Quiz!
Total questions: 11
Worksheet time: 9mins
Which pair of statements best compares the primary functions of the carbohydrate chitin and the protein chitinase?
The chitin in the exoskeleton provides insulation for insects.
The chitinase stores genetic material for insectivorous bats
The chitin in the exoskeleton breaks down for energy to be used by insects.
The chitinase provides insulation for insectivoruos bats.
The chitin in the exoskeleton stores genetic material for insects.
The chitinase provides support and protection for insectivorous bats.
The chitin in the exoskeleton provides support and protection for insects.
The chitinase breaks down chitin for energy to be used by insectivorous bats.
Certain species of the coral-like sea organisms called bryozoans first appeared about 140 million years ago. They remained unchanged for the first 40 million years and then suddenly experienced rapid genetic change. Which process would BEST account for the pattern of evolution in bryozoans?
Convergent evolution
Differentiation
Punctuated Equilibrium
Gradualism
A Venn diagram comparing viruses to bacteria is shown. Which traits apply to each section of the diagram? Move the answers to the correct boxes.
(Bacteria boxes are in alphabetical order)
Utilize a capsid structure
Have active metabolism
Contain genetic material
Replicate independently
Which statement best describes the role of insulin and glucose-transport proteins in this process?
They stimulate a response from white blood cells during glucose entry into the cell.
They keep the plasma membrane flexible when glucose is removed from the blood.
They help to maintain stable glucose levels both inside and outside the cell.
They utilize the excess energy the cell produces to create more glucose.
Kelp forests are critical ecosystems that provide habitats to a variety of animals, including sea urchins, sea stars, sea anemones, crabs, jellyfish, snails, and fish. They also provide hunting grounds for mammals, including sea otters, sea lions, seals, and many different birds. In recent years scientists have documented an increase in shark attacks on sea otters in and around kelp forests. Which consequence is most likely to occur in kelp forests as a result of increased predation of sea otters?
Kelp forests will become more stable due to the increase in otter predation pressure.
Kelp forests will become more stable as sharks replace otters as the top predator in the food chain.
Kelp forests will become less stable due to the increase in the size of the otters' prey populations.
Kelp forests will become less stable as sharks will also eliminate the prey of the otters.
Trichonympha are mutualistic microorganisms found in the gut of termites. Which statements BEST explains the relationship between Trichonympha and termites?
Trichonympha will eventually kill their host termites.
Trichonympha cause infection in termites.
Trichonympha steal resources from termites to live.
Trichonympha improve the survival of termites.
Which statement best explains how the different cell types in the image are formed?
Each cell type uses its own unique replication process.
Each cell type expresses different genes at different times.
Each cell type contains a different part of the original DNA.
Each cell type has different enzymes to replicate genetic material.
During early stages of development, dolphin embryos begin to develop hind limbs. By the time the dolphin fetuses are fully developed, the hind limbs have disappeared. Which statement best explains the early development and then disappearance of hind limbs in dolphins?
Dolphin fetuses change their development to adapt to an aquatic environment.
The genes that control the development of hind limbs are destroyed as the fetus develops.
The early ancestors of dolphins had hind limbs.
Dolphins are evolving to become terrestrial animals.
Which table correctly identifies the function of each type of RNA?
Roots of different plants can be connected by a network of underground fungal extensions called hyphae. These fungi contribute minerals to plants, and the plans contribute carbohydrates to the fungi. Which statement about the transportation of these substances within the plant is true?
The minerals are transported from the phloem to the xylem in the shoot system.
The carbohydrates are transported from the shoot system to the fungi by the xylem.
The minerals are transported from the xylem to the phloem in the roots.
The carbohydrates are transported to the fungi through the phloem.
Which mutation would have the MOST significant impact on the gene product?
Why would the impact be so significant?
