Which of the following is NOT a direct threat to biodiversity in an aquatic ecosystem

A) Poisonous chemicals dumped in by factories

B) Over fishing

C) Global Warming

D) Oil Spills

A muscle contracts in response to an impulse carried by the type of neuron known as a sensory neuron. T or F

The client with a peptic ulcer is prescribed antibiotics and bismuth salts. the nurse explains that this combination of medications will:

While alcohol, tobacco, drugs, and pollution are never healthy for a developing fetus, it is most vulnerable during the first trimester. a. True b. False

How do scientists classify a vascular plant without seeds?

Which of the following does not represent a common outcome following introduction of foreign DNA into a bacterial cell? Choose one: A. If circular, the DNA may persist as a self-replicating genetic element. B. DNA integrates into the host chromosome.

Access to water is critical to survival in plants. Since competition reduces fitness, natural selection tends to favor species that partition available resources.

Assuming that a mountainside, which slopes and has a plain, which is flat, received the same amount of rain, which is more eroded?

Which would least likely be seen on an information pamphlet for red tide? People tend to stay out of the water in the area of a red tide. People are warned to avoid eating shrimp and lobster.

Resident microflora: a. can be found in the stomach and are adapted to acidic conditions b. may be responsible for opportunistic infections in immunocompromised c. may be permanent or transient

Scientific thinking: how can scientists assess the health risks of trans fats