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BIOLOGY
MIDDLE SCHOOL
Which of the following characteristics is common to organisms in Kingdom Eubacteria? A. live without oxygen B. live in less extreme environments than most archaebacteria C. live in the hottest and coldest places on Earth D. are multicellular
BIOLOGY
HIGH SCHOOL
Blood cells are produced in which system?a. circulatory systemb. immune systemc. skeletal systemd. endocrine system
BIOLOGY
HIGH SCHOOL
The respiratory system depends on the nervous system for signals toa. coordinate the muscles that control breathing.b. exchange gases with the circulatory system.c. enhance the amount of available oxygen in the lungs.d. release enzymes to increase the exchange of gase
BIOLOGY
HIGH SCHOOL
Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin made during his time aboard the H.M.S. Beagle prompted him to ask which question?
BIOLOGY
HIGH SCHOOL
What type of bird has a specialized beak for eating insects?A. hawkB. buzzardC. falconD. robin
BIOLOGY
HIGH SCHOOL
The largest part of the brain is thea. cerebrum.c. thalamus.b. cerebellum.d. hypothalamus.
BIOLOGY
HIGH SCHOOL
Which gland helps the body prepare for and handle stress?A. pituitary glandb. thyroid gland C. adrenal glandd. pancreas
BIOLOGY
HIGH SCHOOL
When is gene expression blocked in the lac operon system?
BIOLOGY
HIGH SCHOOL
The system protects internal organs from harmful bacteria, sunlight, and injury.
BIOLOGY
HIGH SCHOOL
Where would you find the scales of birds?a. on their beaksb. under their feathersc. on their wingsd. on their feet
BIOLOGY
HIGH SCHOOL
The function of the eardrum in the middle ear is toA. collect the sound waves.B. vibrate with the frequency of the received sound.C. amplify the received sound.D. carry the sound energy to the brain.
BIOLOGY
HIGH SCHOOL
An example of simple multicellularity is found inA. plantsB. reptilesC. spongesD. amphibians
BIOLOGY
HIGH SCHOOL
Photo 51 is a picture of the structure of DNA that was used to create a model of DNA. Who created the photo?James Watson and Francis CrickErwin ChargaffRosalind FranklinFriedrich Miescher
BIOLOGY
HIGH SCHOOL
Hair and nails are derived from cells of theA. skin.B. bone.C. blood.D. fat tissu
BIOLOGY
HIGH SCHOOL
Higher animals and plants most likely have _____.isogametesanisogametesoogametes
BIOLOGY
HIGH SCHOOL
Which animal will have more parental care?A. frogB. toadC. penguinD. snake
BIOLOGY
HIGH SCHOOL
What kind of bones do birds have?A. hollowB. narrowC. thinD. cartilage
BIOLOGY
HIGH SCHOOL
In 1668, Francesco Redi conducted an experiment with jars of meat. This experiment was noteworthy because it _____.proved that meat should be refrigerateddisproved that life can generate from nonlifeproved that meat does produce maggotsdisproved that meat was bad for you
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