During which phase of cellular respiration is the majority of ATP formed?

A. Glycolysis
B. The Krebs cycle
C. Electron transport system
D. Processing of pyruvic acid for the Krebs cycle
E. All phases produce the same number of ATP molecules.


Answer: C

Biology & Microbiology

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Fairy shrimp are a type of crustacean that is typically found in temporary ponds across the

world, including desert areas and ice-covered mountain lakes. They swim with their ventral side up (i.e., “upside down”) using their leaf-like swimming legs as paddles. Based on this description, fairy shrimp have a __________ ecological niche

a. broad b. narrow c. variable d. herbivorous

Biology & Microbiology

True or false. All blastomeres have the same cytoplasmic components and express the same genes

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following statements about the graph is true?  



A.  Oysters live longer than Hydra.
B.  Hydra and humans have parallel life spans.
C.  Humans and oysters have similar life spans.
D.  Humans have low mortality rates early in life.
E.  Oysters have high mortality rates late in life.

Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?

Gather Content:
What do you already know about the characteristics of the three survivorship curves? What other information is related to the question? 

Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?

Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

The role of an interneuron is to:

A. relay information from sensory to motor neurons. B. convey information from the internal environment of an organism. C. stimulate a muscle to contract. D. maintain homeostasis.

Biology & Microbiology