True or False: The study of biology can help you better understand human reproduction.
True or False: All living things are composed of chemicals.
True or False: Unlike the sand Dollar, The Paramecium doe not have to maintain a stable internal environment.
True or False: Scientists have not discovered any new species on Earth for more than 20 years.
True or False: Resolution is a microscope's power to increase an object's apparent size.
Biology is the study of _________.
contains information for growth and development
All organisms possess DNA. DNA ________.
keeping things the same
Homeostasis means ____________.
Which of the following is not necessarily a distinct property of living things?
a. homeostasis c.complexity
The smallest units that can carry on all the functions of life are called __________.
need energy for life processes, have the ability to reproduce, and are composed of cells
All organisms are composed of __________.
A scientist noticed that in acidic pond water some salamanders developed with curved spines. This was an___________.
The English physician Ronald Ross wanted to try to find the cause of malaria. Based on his observations, Dr. Ross suggested that the Anopheles mosquito might spread malaria from person to person. This suggestion was a __________.
a testable possible explanation of an observation
A hypothesis is ________.
A hypothesis that does not explain an observation __________.
A light microscope that has an objective lens of 10x and an ocular lens of 20x has a magnification of _______.