kendall whipple

A mutation occurs in a sequence of DNA. How could the DNA mutation affect the protein produced? A. The chromosomes in the protein could be changed. B. The structure of the protein could be changed. C. The protein would cause other proteins to mutate. D. T...

2 weeks ago

DDT (dichlorodiphenyltrichloroethane) is a man-made pesticide that was designed to kill insects that carried diseases. However, the pesticide was found to cause mutations to both body cells and sex cells in other organisms. Because of this, DDT is now ban...

2 weeks ago

Cystic fibrosis is a disorder that causes the mucus glands to produce very thick mucus. Problems with the respiratory and digestive systems often occur in individuals with this condition. Like many disorders, cystic fibrosis occurs when there is a simple...

2 weeks ago

Opsins are proteins that are found in the light-sensing cells in the human eye. Different opsin proteins are sensitive to different colors of light. The instructions for creating the type of opsin sensitive to red light are found on a gene known as OPN1LW...

2 weeks ago

Sickle-cell disease is caused by a mutation that produces an abnormal protein. The gene for sickle-cell disease causes a person's red blood cells to be shaped like a sickle instead of being round and flat. Sickle-shaped red blood cells do not carry oxygen...

2 weeks ago

The butterflies shown below all belong to the same species, but one of them has inherited a rare mutation for blue wings rather than orange wings. The butterflies feed on nectar from orange flowers, and their color acts as camouflage while they feed. What...

2 weeks ago

Sickled red blood cells carry less oxygen than normal red blood cells. What does this demonstrate about mutations in the DNA that codes for hemoglobin? A. These mutations are unable to affect the structure and function of hemoglobin. B. These mutations de...

2 weeks ago

A genetic mutation occurs in a rabbit's muscle cell. This genetic mutation will be passed on to A. the existing cells in the rabbit's body. B. the cells of the rabbit's offspring. C. cells that are produced when the mutant cell divides. D. the cells that...

2 weeks ago

In some species of plants, mutations can cause a plant to have different patterns on their leaves, such as gold edges or white stripes. Plants with different patterns grow to the same size and produce offspring with similar patterns. However, these plants...

2 weeks ago

Some mice have inherited a genetic mutation that causes them to have a band of white fur around the middle of their bodies. What is most likely true about an ancestor of these mice? A. A change in its DNA resulted in a modified protein that controls fur c...

2 weeks ago

In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation that it got from neither of its parents, it is called A. a phenotype. B. a recessive gene. C. an autosome. D. a mutation.

2 weeks ago

Nylon is a material made by humans. A nylon factory released wastewater containing small pieces of nylon into a pond. Some bacteria in this pond were able to eat the nylon and use it for energy. These bacteria could do this because they had a protein that...

2 weeks ago

______ is a source of genetic variation that refers to a random error in the genetic code. A. Meiosis B. Mitosis C. A mutation D. Fertilization

2 weeks ago

Mutations are changes in the DNA of an organism. Changes caused by mutations can affect the structure and function of different proteins in the body. Three changes caused by mutations are described below: Having two different-colored eyes is caused by a m...

2 weeks ago

Atrazine is one of the most widely used herbicides throughout the world. Some studies have shown that the chemical has affected the sexual development of frogs, most notably, leopard frogs (Rana pipiens). One study suggested that male tadpoles exposed to...

2 weeks ago

Gluten is a mix of proteins that are produced in some grains, such as wheat. Rice does not naturally contain gluten in its grains. However, scientists have used a method which induced mutations in rice plants and successfully created a strain of rice that...

2 weeks ago

The diagram below summarizes the Earth's carbon cycle. Examine the diagram, and answer the question that follows. Carbon is taken from the atmosphere through _______. A. respiration of plants and animals B. combustion of organic material C. photosynthesis...

3 hours ago

The diagram below shows the flow of nutrients and materials in a prairie ecosystem. If the ecosystem is a closed system, which of these things does not change as it cycles through the ecosystem? A. the location of matter B. the total amount of matter C. t...

3 hours ago

The overall flow of energy through an ecosystem is from A. decomposers to herbivores to photosynthetic organisms and carnivores. B. carnivores to photosynthetic organisms to herbivores and decomposers. C. herbivores to photosynthetic organisms to carnivor...

3 hours ago

In ecosystems, plants transform light energy from the Sun into chemical energy when they make sugar. This sugar can then be consumed by other organisms to be used as building blocks for other molecules, such as proteins and fats, or it can be transformed...

3 hours ago

A diagram of the carbon-oxygen cycle is shown below. Which of these best describes the role of plants in the carbon-oxygen cycle? A. to absorb oxygen from the soil and use it to make carbon dioxide for sugar production B. to absorb carbon dioxide from the...

3 hours ago

Phytoplankton are single-celled, photosynthetic organisms living at the surface of the ocean. How do phytoplankton affect the Earth's carbon and oxygen cycles when they perform photosynthesis? A. They add both carbon dioxide and oxygen to the atmosphere....

3 hours ago

Which of the following correctly describes the relationship of different organisms in an ecosystem? A. All plants depend on animals as their only energy source. B. Some animals receive energy from plants, while others receive energy from other animals. C....

3 hours ago

The food web below shows a diagram of a living system. In the food web, energy and mass are continuously transferred between the producers, consumers, and decomposers. Food webs are evidence that A. living systems follow the laws of conservation of mass a...

3 hours ago

Examine the diagram of the carbon cycle shown above. Through which of the following processes is carbon returned to the atmosphere? respiration decomposition of organic waste burning of fossil fuels photosynthesis

3 hours ago

How does energy usually flow in ecosystems? A. from the Sun through producers to consumers B. from consumers through the Sun to producers C. from producers through the Sun to consumers D. from the Sun through consumers to producers

3 hours ago

The diagram below represents part of the oxygen cycle. Which two major biological processes involved in the oxygen cycle are represented in the diagram? A. photosynthesis and evaporation B. evaporation and precipitation C. photosynthesis and respiration D...

3 hours ago

A diagram of the carbon-oxygen cycle is shown below. Which of the following is mainly responsible for the removal of carbon dioxide from the atmosphere? A. animals B. plants C. factories D. soil

3 hours ago

Complete the diagram below to show how matter and energy are typically transferred throughout an ecosystem.

3 hours ago

Which of the following is a source of carbon dioxide in the atmosphere? factories animals plants sunlight

3 hours ago

The carbon that plants need for photosynthesis comes from A. carbon molecules dissolved in water. B. carbon dioxide gas in the atmosphere. C. carbon atoms from the breakdown of food. D. carbon molecules that the plant produces.

3 hours ago

When a garter snake consumes a mouse, what happens to the organic matter that made up the mouse's body? A. It is destroyed. B. It becomes more massive. C. It leaves the ecosystem. D. It changes form.

3 hours ago

The carbon cycle is a complex series of processes through which all of the carbon atoms on Earth move through the planet's organisms, atmosphere, ocean, and solid rock. As demonstrated by the carbon cycle, matter on Earth is generally A. created and destr...

2 hours ago

Through the process of photosynthesis, light energy from the Sun was transformed into chemical energy in the form of sugar within a strawberry plant. The strawberries were then eaten by a bird, and the sugars were converted into other essential molecules,...

2 hours ago

Which arrow, or series of arrows, represents the movement of atmospheric oxygen (O2) during respiration? A. only arrows 2 and 6 B. only arrow 2 C. only arrow 6 D. only arrows 1 and 6

2 hours ago

What is the primary function of decomposers in an ecosystem? A. Decomposers absorb energy from the Sun and produce food for themselves as well as other organisms. B. Decomposers are parasites; they attach themselves to host organisms and absorb nutrients...

2 hours ago

The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. sugars B. hydrogen C. salts D. oxygen

2 hours ago

28 Humpback whales mainly feed on krill, or shrimp-like crustaceans that live in the ocean. When humpback whales feed, they swim upwards with their mouths wide open and swallow thousands of krill all at once. The excess water that they swallow drains out...

2 hours ago

29 In the above food web, energy is transferred from wheat to the mouse and from the mouse to the coyote when these organisms are consumed. How does this example support the law of conservation of energy? A. Energy is both created and destroyed as it is t...

2 hours ago

An ecosystem is shown in the picture below. In an ecosystem, materials can be recycled. Which of the following materials can cycle through this ecosystem? A. oxygen B. water C. carbon D. all of these

2 hours ago