Which of the following observations tells the biologist that the organism is eukaryotic

Why has the spread of the herbicide-resistant hydrilla through Florida's waterways resulted in them no longer being navigable by most boats

Prokaryotes are different from all other organisms in that their cells a. lack nuclei. b. have organelles. c. have cell walls. d. lack DNA.

A vaccine is something that is used to

If you had purple flowers and white flowers the bees go visit the purple flowers more, why?

Which statement beat describeso how bones are moves by skeletal muscles?

Which statement is false concerning lactic acid? a. It is formed during fast glycolysis b. It is formed when hydrogens combine temporarily with pyruvate c. It can diffuse into the blood and be carried away from the site of production d.

Imagine that you are observing an enzyme-catalyzed reaction in the lab. Every time you add more enzyme, the reaction rate increases proportionally until the reaction rate suddenly levels off.

Which human activity has had the greatest impact on climate change? A. deforestation B. burning fossil fuels C. production of nuclear waste D. building skyscrapers

Check answers. 1. The active site A. Located in an enzyme (my answer) B. Is rich in amino acid C. Is located on a substrate D. A and B E. B and C 2. Anabolism is defined as the A. Sum of all chemical reactions B.

How are genetic characteristics associated with nonreproductive activities such as feeding affected by natural selection?