The analysis of energy flow in an aquatic ecosystem in Silver Springs, Florida revealed that ____
a. energy flows are difficult to measure
b. most of the sun's energy is harvested
c. only a little energy is transferred from one trophic level to the next
d. the energy flow in carnivores is equal to that of producers
e. trophic energy losses are not significant
ANSWER: c
You might also like to view...
Most of the following geographic areas are biodiversity hotspots. Select the exception
a. New Zealand b. Mexico c. Caribbean d. South-Central China e. Norway
Aside from HIV infections, the greatest number of global disease-related deaths result from
1.diarrheas. 2.various respiratory infections. 3.hepatitis. 4.malaria. 5.tuberculosis.
Starting with shredded spinach leaves, you follow a procedure that separates cellular organelles into different fractions. To identify the fraction that contains the mitochondria, you should test for the presence of
A) aquaporin. B) insulin receptors. C) phospholipids present only in the mitochondrial outer membrane. D) mitochondrial wall polysaccharides. E) electron transport proteins.
The pH of the digestive tract is
A) low throughout. B) basic in the stomach and acidic throughout the rest of the tract. C) acidic in the stomach and neutral in the intestines. D) high throughout. E) neutral throughout.