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Dayanara Ibarra
BiologyBiology
What is the trait that is ancestral to all chordates?
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Rebekah Carr
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Prozac causes the neurotransmitter serotonin to remain at the site of the synapse longer than it normally would; Prozac therefore inhibits the process termed:
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Reed Foster
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How is the Periodic Table of the Elements arranged?

alphabetically

in a neat grid with 10 rows and 11 columns

in a neat grid with 11 rows and 10 column

by aligning groups with common propertie
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Parker Watts
BiologyBiology
Both euglena and Cyanobacteria are photosynthetic unicellular organisms found in pond water. The feature that distinguishes euglena from Cyanobacteria is the-

A. Ability to maintain homeostasis

B. presence of ribosomes

C. presence of nuclear membrane
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Jordan Bartlett
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Using the lock and key theory explain how the enzyme amylase is specific for breaking down starch
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Jamison Daniel
BiologyBiology
A genetically engineered corn plant is approved for agricultural use. The plant produces pollen that can make its own toxins. These toxins protect the corn plant against pests. What is a likely impact on the farmer of growing such a variety of corn?

The financial costs for the farmer would be lowered.

Federal agencies could initiate legal action against the farmer.

The farmer may be held responsible for increasing chemical pollution.

The farmer's expenses for pest control would increase due to an increase in bee population.
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Jaden Melendez
BiologyBiology
Where is pyruvate made in the cell?

A. Cell membrane

B. Cytoplasm

C. Nucleus

D. Mitochondrion
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Coconut
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Using site-directed mutagenesis, you have created a mutant form of chymotrypsin that has alanine substituted for the usual serine at position 195. Which of the following effects would your expect to observe? a. No effect or slight increase in affinity for substrate coupled to a complete loss of enzyme activity. b. A decrease in the affinity for substrate coupled to a decrease in enzyme activity. c. An increase in the rate of peptide-bond cleavage due to an increase in the rate of acid-base catalysis. d. An increase in the rate of peptide-bond cleavage due to an increase in the rate of covalent catalysis. e. A complete loss of enzyme activity due to the inability to bind substrate
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Trevon
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What cell structure is the source of energy for a cell
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Maci Haney
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The study of energy and its changing forms is called.
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Aubrey Berg
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Which two protists have eyespots
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Seth Odonnell
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Why do ecosystems need a continual influx of new energy?
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Quinn Dougherty
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What are cells that can become any other cell type
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Emanuel Pitts
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How much does a blue whale weigh? (Metric System)
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Makai Nelson
BiologyBiology
Somatic cells are not: a) the cellular components of tissue. b) basically all the cells in the body except those involved in reproduction. c) one type of eukaryotic cell. d) also known as gametes. c) those that make up tissues, e. g. muscles and the brain.
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