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Biology Questions
BIOLOGY
HIGH SCHOOL
Maria is concerned because she has been exposed to a small amount of radiation during an X-ray. What is her doctor most likely to tell her?
BIOLOGY
HIGH SCHOOL
Biotic potential and _____ determine _____. A.environmental resistance; rate of increase B.distribution; carrying capacity C.environmental resistance; carrying capacity
BIOLOGY
HIGH SCHOOL
Because prokaryotes do not have many specific structures, they
BIOLOGY
HIGH SCHOOL
When listing the levels of organization in organisms from smallest to most complex, which level is just below organs in complexity? cell organism organ system tissue
BIOLOGY
HIGH SCHOOL
In the example of the finches on the Galapagos, what is the cause of the geographic isolation?A. the oceanB. the foods the finches ateC. the mating behavior of the birdsD. the climate on the different islands
BIOLOGY
HIGH SCHOOL
Which environmental factor would likely lead to an increase in genetic variation in a population of squirrels? an increase in predators an increase in available food an increase in forest fires an increase in pollution
BIOLOGY
HIGH SCHOOL
What did Stanley Miller's experiment in 1953 illustrate regarding the origins of life?a. It produced the chemicals of life by simulating earth's early conditions.b. It created spontaneous generation, which showed the earth's age.c. It produced the chemicals of life by simulating earth's modern conditions.d. It produced radiometric dating, which showed the earth's age.
BIOLOGY
HIGH SCHOOL
A circle graph is always based on percentages. true or false?
BIOLOGY
HIGH SCHOOL
An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?
BIOLOGY
HIGH SCHOOL
Which is an interconnection of food chains in an ecosystem?A) food webB) trophic chainC) energy webD) producer web
BIOLOGY
HIGH SCHOOL
Which of the following aspects of the environmental movement addresses the public’s right to intervene in environmentally damaging activities on private land?a. environmental justice b. environmental sociology c. environmental law d. environmental activism
BIOLOGY
MIDDLE SCHOOL
What process takes place in the structure ??
BIOLOGY
MIDDLE SCHOOL
red blood cells are able to maintain homeostasis because they are bathed in blood, which is what to the fluid in the cells themselves?
BIOLOGY
HIGH SCHOOL
cat's leg, dolphin,s flipper,bat's wing these similarites provides evidence for which of the following hypotheses? A.legs and wings may have evolved from flippers. B.all mammals have evolved from ancestor that was a bat. C.a cats leg, a dolphin's flipper, and a bat's wing have identical functions. D.cats, dolphins, and bats may have had the same ancestor millions of years ago.
BIOLOGY
MIDDLE SCHOOL
The allele for round seeds is represented by R. Suppose that a pea inherited two recessive alleles for wrinkled seeds. How would you write the symbols for its alleles?
BIOLOGY
HIGH SCHOOL
Which best describes genetic mutations? Some inherited genetic mutations can be good for the offspring. Different genetic mutations cause few forms of cancer. Somatic mutations can be inherited from parents or acquired during life. Genetic mutations that cause diseases are always passed on to offspring.
BIOLOGY
HIGH SCHOOL
Before the introduction of the yellow crazy ant to Christmas Island, land crabs ate many plant seedlings on the forest, and the forest floor stayed relatively clear of plants. As the crab population declined, plant seedlings flourished. The forest floor became covered with plants. Which statement best describes what occurred on the forest floor? (Points : 1)Primary succession occurred because the ant was a new species that changed the ecosystem.Secondary succession occurred because the organisms on the forest floor changed.Climax vegetation occurred because the seedlings finally had a chance to grow.Primary succession occurred because more plant life in the ecosystem was healthier.
BIOLOGY
HIGH SCHOOL
A substance that influences the reaction but does not participate in the reaction is a ?
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