The early Earth reducing atmosphere is thought to have lacked which of the following gases?
A. N2
B. O2
C. CO2
D. H2O
E. SO4
B. O2
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Choose the organelle in column 2 that best matches the activity in column 1.
A) There is no appropriate match. B) Mitochondria C) peroxisomes D) mitochondria E) there is no appropriate match F) lysosome G) smooth endoplasmic reticulum 1) test for catalase activity 2) test for the TCA cycle enzymes 3) test for the presence of cytochromes 4) look for fractions that are green 5) hydroxylation of compounds including phenobarbital 6) presence of acid hydrolases 7) ribulose bisphosphatase activity is present
Lamarck’s ideas embody all of the following, EXCEPT
a. a metaphysical perfecting principle b. principle of use and disuse c. principle of acquired characteristics d. principle of uniformitarianism e. all species change through time
Which of the following organisms has the simplest digestive system?
a. earthworm b. jellyfish c. grasshopper d. clam e. more than one of these organisms has the simplest digestive system
When there is less in the cell compared to what's outside of it, it is called what?
What will be an ideal response?