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BIOLOGY
HIGH SCHOOL
Please Help! Don't remember going over this! What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated liquids at the earth’s surface C. iron-rich rocks in the mantle D. temperature differences in the mantle
BIOLOGY
HIGH SCHOOL
Respiratory structures of land animals can include which of the following: A. Lungs B. Skin C. Gills D. Both A and B
BIOLOGY
HIGH SCHOOL
Cells of the immune system are able to respondto the presence of invading organisms becausethey recognize the(1) antigens present on the invaders(2) antibodies present in invading pathogens(3) DNA pattern in the nuclei of viruses(4) antibiotics released from microbes
BIOLOGY
HIGH SCHOOL
Photosynthesis and respiration are alike in thatthey both(1) require the Sun as a direct source of energy(2) result in the production of glucose molecules(3) require specific catalysts(4) occur within mitochondria
BIOLOGY
HIGH SCHOOL
Bears and salmon have a predator-prey relationship. What would most likely happen to the bear population if the salmon population increased?
BIOLOGY
HIGH SCHOOL
Your biceps muscle is attached with tendons to the top of your humerus and to the end of your radius, near your elbow. What would happen if the biceps were attached to the top and bottom of your humerus instead? You would not be able to pull your forearm up toward your shoulder. Your humerus would lengthen and shorten each time your biceps contracted. You would be able to pull your forearm toward your shoulder with more force. Your triceps muscle would make your arm bend backward when it contracted.
BIOLOGY
HIGH SCHOOL
What would happen to other organisms if prokaryotes did not recycle nutrients?
BIOLOGY
HIGH SCHOOL
A population of snails is experiencing disruptive selection in terms of their shell patterns. Which statement is most likely true about the population? Two different shell patterns are increasing in frequency, while the most common pattern is decreasing. The frequency of the most common shell pattern is becoming higher than all other patterns. The frequency of a new shell pattern is becoming higher than all other patterns. Two different patterns are combining into one very common pattern.
BIOLOGY
HIGH SCHOOL
Which is a source of adult stem cells?
BIOLOGY
HIGH SCHOOL
Many different species of songbirds migrate into the United States and Canada from Central and South America each summer in order to take advantage of the caterpillars and other insects that hatch in the northern forests during the summer. Over the past several decades songbird populations have been declining. How might a decrease in the number of songbirds be expected to affect the trees in a northern forest?
BIOLOGY
HIGH SCHOOL
In which of the following locations is a shield volcano likely to form? At a hotspot Near a transform fault Along a divergent plate boundary Near diverging oceanic plate boundaries
BIOLOGY
HIGH SCHOOL
A person's temperature is 40° C. What would it be in Kelvin? A. −313° CB. −313 KC. 313° CD. 313 K
BIOLOGY
HIGH SCHOOL
Which of the following aspects of society is the least affected by limiting factors? a. location b. health c. behavior d. stability
BIOLOGY
HIGH SCHOOL
Which characteristic best distinguishes glycolysis and the Krebs cycle from the electron transport chain? the amount of ATP produced the location in which they occur whether glucose is broken down whether they occur in plants or animals
BIOLOGY
HIGH SCHOOL
Which statement best describes an ecosystemmaintaining a state of approximate equilibrium?(1) Nutrients from decayed organisms arerecycled in a forest ecosystem.(2) All the frog species in a South American rainforest become extinct.(3) A mutation spreads through a species ofbacterium, making them unable to decomposewastes.(4) Mice are released into a field ecosystem asfood for a declining predator population.
BIOLOGY
HIGH SCHOOL
A student was visiting a friend at her home. Her friend owned two cats. After playing with the cats fora while, the student began to sneeze. Her nose began to run and her eyes became red, watery, anditchy. It also became hard for her to breathe. A few minutes after leaving her friend’s home, thesymptoms disappeared.Provide a biological explanation for the symptoms the girl developed at her friend’s house. In yourresponse, be sure to:• state one reason why her symptoms are not likely due to an infectious agent
BIOLOGY
MIDDLE SCHOOL
The ultimate source of heat in the process of global warming is ?
BIOLOGY
MIDDLE SCHOOL
Why would the use of alternative sources of energy be beneficial to the Earth and its people?
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