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WorksheetsBiology Power DOL Q3 W6
Total questions: 15
Worksheet time: 12mins
The diagram below shows the exchange of oxygen and carbon dioxide through a capillary wall. This diagram shows the exchange of gases between which two body systems?
Circulatory and digestive
Circulatory and respiratory
Endocrine and circulatory
Circulatory and nervous system
In the past, smallpox, which is caused by a virus, was a common and deadly disease. Now, people no longer get smallpox. Which method eradicated the smallpox virus?
Creating memory cells through vaccination
Cooking food thoroughly
Water purification programs
More sanitary living conditions
Students constructed a graphic organizer to illustrate the different levels of biological organization. Which term below goes into the blank box represented in the graphic organizer?
Cell
Organism
Ecosystem
Biosphere
Which statement best describes how bacteria recycle matter in an ecosystem?
I. Bacteria are producers that create energy for second-order consumers.
II. Bacteria produce toxins to prevent the growth of invasive species.
III. Bacteria cause diseases that limit the reproduction of organisms in a population.
IV. Bacteria are decomposers that help to transfer organic material to the soil.
Which roman numeral is correct?
I
II
III
IV
When a person eats food, the digestive, nervous, and endocrine systems work together to regulate nutrient absorption in the body by releasing and restricting the hormones insulin and glucagon. The feedback mechanism of the two hormones is shown in the illustration. A scientist tests how the other systems react when there is a change in one system. She treats mice with a chemical that blocks the release of insulin by the pancreas and then feeds them a diet high in carbohydrates. What would be a logical hypothesis for her experiment?
Insulin will build up in the mice's blood and they may develop diabetes.
The mice's blood glucose levels will increase to very high levels.
Blood glucose levels will decrease until the mice's next meal.
The liver will break down glycogen, releasing glucose into the blood.
The diagrams show some of the levels of biological organization. In what order are the levels in the diagram?
Population, community, ecosystem
Population, community, organism
organism, population, community
Community, population, oragnism
A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time. During this period the virus affects the body by doing which of the following?
The virus produces toxins that weaken immune cells and prevent them from reproducing.
The virus damages immune cells while using their machinery to produce copies of itself.
The virus uses nutrients meant for the immune cell to fuel its own cellular respiration.
The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally.
Saprophytes are fungi that feed on dead and decomposing organisms. They secrete enzymes that digest components of the cell wall, such as cellulose and lignin. Which statement explains why these fungi are an important part of the biogeochemical cycle?
Saprophytes perform gaseous exchange that assists the cellular activities of autotrophs.
Saprophytes extract minerals from living tissue to recycle them back into the soil.
Saprophytes transport nutrients through the xylem and phloem in autotrophs.
Saprophytes return organic material to the soil for use by living organisms.
Which feedback mechanism maintains the equilibrium of your body temperature when your surroundings are very hot?
The brain sends a message to the skin. The muscles in the skin contract, or shiver. Shivers cool the body.
The muscles in the skin contract, which sends a message to the brain that you feel hot. The brain sends a message to the skin's receptors.
Heat receptors in the skin send a message to the brain. The brain sends the skin a response telling the skin to start sweating. Sweat cools the body.
The skin starts sweating. The sweat sends a message to the brain. The brain sends a response to the skin to stop sweating, which cools the body.
The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system. The most common danger related to destruction of CD4 T cells is -
An increase in the risk of high blood pressure
An increase in the threat of diseases caused by microorganisms and viruses
A decrease in the flow of blood to vital organs
A decrease in the amount of oxygen being transported to tissues
A student researching bacteria concluded a report with the claim in the box. Which statement correctly addresses the validity of the claim?
The claim is valid because many studies and experiments have shown that bacteria disrupt homeostasis.
The claim is invalid because there are many types of bacteria that help organisms maintain homeostasis.
The claim is invalid because only microorganisms such as viruses disrupt the health of organisms.
The claim is valid because bacteria cause disease.
Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?
Cells and Tissue
Cells and Organ Systems
Organ Systems and Organisms
Tissue and Organ Systems
Several structures work together to allow the flowering plants to reproduce. The diagram below shows a typical flower. Which table correctly identifies the function of each structure or group of structures in the reproduction of the plant?
X: Pollen production
Y: Pollen transfer
Z: Production of eggs
X: Attraction of pollinators
Y: Production of male sex cells
Z: Egg production and embryo development
X: Protection for embryo
Y: Supply nourishment to embryo
Z: Place of embryonic development
X: Photosynthesis
Y: Production of cells that protect internal organs
Z: Production of egg and sperm
Which of the following functions at the same organizational level as the kidney in the human excretory system?
skeleton
epithelial tissue
urinary bladder
squamous cell
All of the following correctly describe the organization of body systems except? Select all that apply.
Skin is an organ
Tissues are made up or organs
Organs are made up of tissues
Tissues are made up of cells
Each organ is made up of one kind of tissue
