A volcanic eruption led to the formation of a tiny island. Twenty years later, this island had many rich forms of life. What took place on this island?

A. primary succession

B. secondary succession

C. climax communities

What kinds of scientists may be oceanographers?

Besides plants what other factor distinguishes one biome from another biome

Why is it necessary to absorb some food molecules by active transport

Which of the following patterns is most likely to indicate a Foodborne illness

All BUT one of the following is a component of nucleic acids. Nucleic acids DO NOT contain A) phosphates. B) amino acids. C) ribose sugars. Eliminate D) nitrogenous bases

Which of the following describes work? a) lifting a 1 kg mass for 1 m b) holding a 1 kg mass for 1 hour c) moving 1 m in 1 hour d) holding 1 kg mass

How would an object blocking a bronchus affect its airflow?

Mary is campaigning for improved air quality in her city. She is very concerned about carbon and methane outputs, but not phosphorous. Why is that? A. She thinks phosphorous makes a positive contribution to air quality, B.

Huntington's disease is a genetic disorder that is caused by a dominant allele. Which of the following is true? A. A person with Huntington's disease will pass the disease onto 100% of their children. B.

Avery could barely detect sweetness in a sip of water from a pitcher in which one quarter of a teaspoon of sugar was mixed into a half gallon of water. for taste, this is avery's: