Exam 1: Invitation To Biology

On a very hot summer day and a few months later on a very cold winter day,you go outside and take your temperature.Each time your body temperature is 37 degrees Celsius.This example illustrates ____.

The species extinctions taking place today are being caused by ____ activities.

Which organisms are single-celled and lack a nucleus?  

Which of the following is a characteristic of all fungi?  

Match the term with its definition. -A community interacting with its environment

Which of the following words describes a tentative explanation to a given question?  

Classification. Answer the following questions in reference to life's diversity. Choose only the most correct answer. -Besides feeding themselves,these multi-celled organisms,serve as food for most other organisms.

What is a characteristic of eukaryotes?  

Which level of taxonomy encompasses all of the others?  

The variable(s)in the 2005 peacock butterfly experiment is(are)the ____.

Based on the Olestra potato chip experiment conducted by researchers at the Johns Hopkins University School of Medicine, match the following letters to the number with which they best correspond. -A subset of people got Olestra-containing chips.

Match the term with its definition. -Two or more atoms bonded together

The dynamics of an ecosystem depends on two main processes,which are ____.

Classification. Answer the following questions in reference to life's diversity. Choose only the most correct answer. -These prokaryotes are able to colonize extreme environments such as hydrothermal vents on the seafloor.

The difference between results obtained from a subset and results obtained from the whole is known as the ____.

Based on the Olestra potato chip experiment conducted by researchers at the Johns Hopkins University School of Medicine, match the following letters to the number with which they best correspond. -Percentages are about equal.Therefore,Olestra is not the cause of intestinal cramps observed in some people who have ingested Olestra-containing food.

Error bars on a graph indicate ____.

A control group ____.

What practice helps scientists avoid bias in their findings?  

A scientific theory ____.