Concepts of Science
Showing posts with label Concepts of Science. Show all posts
Showing posts with label Concepts of Science. Show all posts

_____ had larger brains than Homo sapiens.

_____ had larger brains than Homo sapiens.



a) Australopithecus afarensis
b) Homo habilus
c) Neanderthals
d) Australopithecines
e) Homo erectus







Answer: C

Of the items beliefs listed below, which one is a creationist most likely to believe?

Of the items beliefs listed below, which one is a creationist most likely to believe?


a) God created all life in its modern form.
b) Fossils are good evidence of evolution.
c) The Earth is approximately 5 billion years old.
d) There was no catastrophic flood on Earth.
e) The Bible is not a good source for the history of the Earth.









Answer: A

It is thought that the geological time period called Cretaceous ended:

It is thought that the geological time period called Cretaceous ended:




a) because of the largest known mass extinction.
b) at the time of the first appearance of flowering plants.
c) with the impact of a giant asteroid on the Earth.
d) with giant eruptions of lava and global wildfires.
e) none of the above.







Answer: C

What is the most likely cause of the mass extinction that occurred about 65.5 million years ago?

What is the most likely cause of the mass extinction that occurred about 65.5 million years ago?







a) The Earth's north and south magnetic poles reversed.
b) A giant asteroid struck the Earth causing global consequences.
c) A rapid mountain-building episode blocked animal migration at that time.
d) Forest fires caused a vast reduction in global oxygen.
e) An increase in the luminosity of the Sun boiled away most of the oceans.









Answer: B

The Cambrian explosion indicates:

The Cambrian explosion indicates:




a) an asteroid struck Earth during the Cambrian Period.
b) something profound happened in Wales early in Earth history.
c) a decrease in fossil evidence of primitive life.
d) an increase in fossil evidence of primitive life.
e) that life evolved from a chemical mix in tidal pools.







Answer: D

Life on Mars:

Life on Mars:




a) is still a topic under study.
b) was once there but is extinct now.
c) was proven by a meteorite from Mars.
d) is well known but not much discussed.
e) probably came from Earth to Mars after Mars oceans dried up.







Answer: A

Black smokers are found in:

Black smokers are found in:




a) the centers of ocean basins.
b) the in lakes and rivers.
c) oil slicks on the ocean surface.
d) places where forests are burning.
e) none of the above.








Answer: A

Which comment below most accurately describes black smokers?

Which comment below most accurately describes black smokers?



a) rare organisms existing on the mouth of active volcanoes
b) an ecosystem that obtains energy from the Earth's internal heat rather than the Sun
c) giant tube worms growing along the mid-Atlantic Ocean ridges
d) water samples that have different physical and chemical properties
e) volcanic islands that may have one time been an Atlantic Ring of Fire







Answer: B

Planetary research in recent years has shown that:

Planetary research in recent years has shown that:




a) Mars may have had a sea of water for a billion years.
b) like Earth, Mars has gone through multiple mass extinctions.
c) being beyond the asteroid belt, Mars was never struck by any meteorites of size.
d) the gravity of Mars is deflecting asteroids toward Earth.







Answer: A

What may have been the function of RNA molecules in the earliest life forms?

What may have been the function of RNA molecules in the earliest life forms?





a) to facilitate the Y-chromosome in reproduction
b) to allow respiration of early organisms to be anaerobic or aerobic
c) to act as enzymes in protein synthesis
d) to recycle products of elimination
e) all of the above





Answer: C
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