Bio Homework Quiz #5

Which activity is an example of a decomposer recycling organic compounds back into the environment?

A fungus breaks down the body of a dead animal

Base your answer to the question on the word equations below and on your knowledge of biology. The equations represent two biochemical processes that occur in living organisms. The letter X represents a molecule produced from process 1. Identify the molecule represented by letter X in process 1

ATP

Mitochondria provide ribosomes with

ATP for protein synthesis

Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents a food web illustrating some relationships in a tidal marsh ecosystem. In addition to grasshoppers, herring may also get energy from

Algae

Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents a pond ecosystem. Energy in this ecosystem passes directly from the Sun to

Autotrophs

Base your answer to the question on the word equations below and on your knowledge of biology. The equations represent two biochemical processes that occur in living organisms. The letter X represents a molecule produced from process 1. Which process occurs in the cells of a green plant leaf?

Both process 1 and process 2

The chart below lists substances involved in the process of photosynthesis. Which statement best describes how these substances interact in photosynthesis?

C and D combine to produce A and B.

Stability within an ecosystem is achieved partially by the presence of organisms that break down important molecules and make them available for other organisms to use. These organisms are

Decomposers

An invasive species, the spiny water flea, was recently found in a New York lake. These water fleas eat zooplankton, a food also consumed by native fishes. The fleas spread from lake to lake by stacking to fishing lines, anchor ropes, and boats. Which statement best describes the effect of the water flea on the lake?

It will feed on organisms that are important to other species

Fat molecules typically contain long chains of carbon atoms. Animals tend to store fats for use when food resources are scarce. This is an advantage to the animal because

Much energy can be gained by breaking the bonds between atoms in the fats

Which process occurs at each link in a food chain?

Some energy is released into the environment as heat.

Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents a food web. What do the arrows in the diagram represent?

The flow of energy

Some organisms in an ecosystem are represented in the pyramid below... In the pyramid, the arrows labeled X represent

The loss of energy in the form of heat

Base your answer to the question on the diagram below and on your knowledge of biology. Diagram of food web... A factor not shown in the diagram that provides energy for living organisms is

The sun

To prepare for an experiment, ten different sources of foos were stabilized and kept in a sterile container. Bacteria of the same species were placed on each of the ten different food sources and kept at 26 degrees Celsius for two days. During this time, bacteria grew in nine of the containers. Based on this observation, the scientists could conclude that

This species of bacteria synthesizes enzymes needed to digest food in nine of the ten containers

A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants. Which tool is correctly paired with a procedure that could be used during this experiment? (August 2018)

a graduated cylinder to measure 30 mL of water for each plant daily

A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants. The independent variable in this experiment is the (August 2018)

air temperature at which the corn plants were grown

During the process of cellular respiration, energy is released from

chemical bonds

A corn field includes corn plants, mice, hawks, and various insects, fungi, and bacteria. Which nutritional role is correctly paired with organisms that carry out that role?

consumers - mice and insects

In a food web, which type of organism receives energy from the other three types?

decomposer

The diagram below does not represent a sustainable energy pyramid in an ecosystem because (June 2019)

more energy must be available in the producer level than in the consumer levels

A student placed a test tube containing elodea (an aquatic plant) and pond water 10 cm from a light source. He observed that the plant gave off bubbles of a gas and counted how many bubbles were released in one minute. He moved the plant farther away from the light source to see if distance from the source made a difference. The data table below shows his results. The gas that was being produced was most likely

oxygen as a product of the process of photosynthesis

More than 100 years ago, Earth's atmosphere contained about 280 parts per million (ppm) of carbon dioxide. It is predicted that by the year 2050, the level of carbon dioxide in the atmosphere could reach 700 ppm, greatly increasing Earth's temperature. It has been suggested that growing more green plants would help to slow this increase. The best explanation for why increased numbers of plants would help is that plants

remove carbon dioxide from the atmosphere during photosynthesis