Life Science Chapter 8 Question Preview (ID: 23906)
History Of Life On Earth.
TEACHERS: click here for quick copy question ID numbers.
What is one important biological event that occurred during the Precambrian time?
a) life began
b) multicellular organisms appeared
c) reptiles appeared
d) large mammals appeared
These hominids made sophisticated tools, hunted large animals, wore clothing, and cared for the sick and elderly. Their extinction is a mystery.
a) australopithecines
b) hominids in the genus Homo
c) Neanderthals
d) Cro-Magnons
Which of the following is not an evolutionary change in early hominids that lead to the rise of modern humans?
a) longer legs
b) bigger brains
c) shorter arms
d) bipedalism
The first primate ancestors, called hominids, appeared during the Cenozoic era.
a) True
b) False
c)
d)
Why are there usually more fossils from the Cenozoic era than from any other geologic era.
a) There is more life
b) The Cenozoic era is the oldest era, so the fossils are found closer to the surface.
c) The Cenozoic era is the present era, so the fossils are easier to find because they are closer to the surface.
d)
Scientists think the first cells were anaerobic because there was no oxygen available when they developed.
a) True
b) False
c)
d)
Humans and human-like ancestors are called ___________.
a) primates
b) hominids
c) promisians
d) australopithecines
Where did life originate?
a) land
b) oceans
c) air
d) magma
The group of mammals including apes, monkeys, humans, and prosimians.
a) hominids
b) primates
c) australopithecines
d) homo habilias
The atmosphere has always been composed of oxygen.
a) True
b) False
c)
d)
The ozone is important because it ________________________.
a) It blocks UV radiation from the sun.
b) It uses up breathable oxygen.
c) You can breathe it in.
d)
245 million years ago, the continents were one giant landmass called _________.
a) Pangea
b) Gondawandaland
c) Laurasia
d)
What percentage of the original substances will be present after two half-lives have occurred?
a) 50%
b) 75%
c) 25%
d) 0%
Plate tectonics is the theory of how huge pieces of crust, tectonic plates, move around the globe.
a) True
b) False
c)
d)
Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 23906 in the upper right hand corner or click here.
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 23906 in the upper right hand corner or click here.
TEACHERS / EDUCATORS
Log In | Sign Up / Register
Log In | Sign Up / Register