________ efficiency is the ratio of production to assimilation, which measures how efficiently the consumer incorporates assimilated energy into secondary production
Fill in the blank(s) with correct word
Production
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Frogs differ from other land vertebrates in that _____
a. the circulatory system does not play a role in respiration b. lungs take in oxygen but do not release carbon dioxide c. the respiratory surface is in their gills d. they do not possess lungs e. they take in oxygen through lungs but release carbon dioxide from gills
Which statement is NOT true?
a. Membranes are often perforated by proteins that extend through both sides of the membrane. b. Some membranes have proteins with channels that allow for the passage of hydrophilic substances. c. Hydrophilic substances have an easier time passing through the lipid bilayer than do hydrophobic substances. d. The current concept of a membrane is best summarized by the fluid mosaic model. e. All of these statements are NOT true
Amniocentesis and chorionic villus sampling are two methods of prenatal diagnosis. One important
difference between these techniques is that A. chorionic villus sampling is more routinely prescribed. B. amniocentesis can diagnose chromosome disorders, while chorionic villus sampling cannot. C. chorionic villus sampling can be performed earlier than amniocentesis. D. maternal risks are higher with chorionic villus sampling. E. the risk of miscarriage is higher with amniocentesis than with chorionic villus sampling.
By examining a karyotype, it is possible to determine
A) which of two related plant forms is a gametophyte, and which is a sporophyte. B) the sex of an animal. C) the age of a fungus. D) A and B only E) A, B, and C