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BIOLOGY
MIDDLE SCHOOL
Although it has a greater ____ than Sirius, Rigel does NOT look as bright in the night sky.a.apparent magnitudec.black holeb.parallaxd.absolute magnitudePlease select the best answer from the choices provided
BIOLOGY
HIGH SCHOOL
What law best explains why we would expect 75% of the offspring to have large teeth
BIOLOGY
MIDDLE SCHOOL
The tundra is cold year-round. it has short cool summers and long, severe winters. The tundra has a permanently frozen sublayer of soil called permafrost. Like the desert, the tundra receives little precipitation, about 4 to 10 inches per year, and what does fall is usually in the form of snow or ice. It has long days during the growing season, sometimes with 24 hours of daylight, and long nights during the winter. Which adaptations would you expect to see in plants growing in the tundra? A) they are having a neutral impact on the environment by acting as decomposers. B) they are having a positive impact on the environment by acting as decomposers. C) they are having a negative impact on the environment by acting as decomposers. D) they are having a predatory impact on the environment by acting as decomposers.
BIOLOGY
HIGH SCHOOL
Which would have the GREATEST effect on the rate of photosynthesis in a plant?a. oxygen levelb. light intensityc. sugar concentrationd. starch concentration
BIOLOGY
HIGH SCHOOL
A biology student is using illustrations of a virus, a bacteria, an amoeba, and a human skin cell to show the relative size of these microscopic objects. Which of these is the smallest microscopic object?
BIOLOGY
HIGH SCHOOL
Which part of the body contains enzymes that break down starch into simple sugars
BIOLOGY
HIGH SCHOOL
A _____ is a horizontal stem that can divide and grow in several directions at once. corm rhizome stolon bulb
BIOLOGY
HIGH SCHOOL
Which of the following is a product of photosynthesis?A. Carbon dioxideB. SunlightC. WaterD. Oxygen
BIOLOGY
HIGH SCHOOL
Which of the following accurately describes the patterns of inheritance in human blood types?A. Two alleles code for blood types and four phenotypes are possible.b. Allele IA and IB are codominant, and allele i is recessive.c. Allele i is dominant over alleles IA and IB.D. Three alleles code for blood types and three phenotypes are possible.
BIOLOGY
HIGH SCHOOL
Unlike T lymphocytes, B lymphocytesA. are white blood cells.B. recognize infected body cells.C. discover antigens in body fluids.D. are made in the red bone marrow.
BIOLOGY
HIGH SCHOOL
In general, becoming more cautious in making decisions is a characteristic of which stage of adulthood?a. adolescenceb. young adulthoodc. middle adulthoodd. late adulthood
BIOLOGY
HIGH SCHOOL
What is the most abundant fossil fuel?a. Gasb. Coalc. Woodd. Oil
BIOLOGY
HIGH SCHOOL
The continents began to drift apart by the end of the _______ period. A. PermianB. NeogeneC. CambrianD. Cretaceous
BIOLOGY
HIGH SCHOOL
A man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children may have all blood types EXCEPT Type
BIOLOGY
HIGH SCHOOL
Equilibrium is best defined as a state of what?
BIOLOGY
HIGH SCHOOL
Which of the following components of the skin is innermost, or farthest from the surface of the skin? A. Sebaceous glands B. Hair folliclesC. Hypodermis D.. Epidermis
BIOLOGY
HIGH SCHOOL
Scientists have been experimenting with gene therapy, which often involves the use of bacteria or viruses to deliver new or modified genes to cells. These scientists believe gene therapy can be used to treat inherited diseases, but it is not yet in wide use even though many people have studied it. Which statement best describes gene therapy?
BIOLOGY
HIGH SCHOOL
How has climate influenced the size of house sparrows? a. They have gradually become smaller in colder parts of the country.b. Their size has not changed in response to climate.c. They have gradually become larger in colder parts of the country.d. Their size has increased in response to heavy rainfall.
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