1) A theory is:
a. an idea that has been proven
b. an explanation of an idea that is broad in scope and has
multiple lines of evidence
c. a belief that has been accepted by all scientists as fact
d. a concept in the early stages that still needs to be
tested
e. a description of a belief that inbokes the supernatural
2) Some deep-sea bacterica live near submerged volcanoes
and make their own food using energy derived from minerals coming
from the volcanoes. These bacteria would be classified
as:
a. no living
b. heterotrophic
c. autothrophic
d. photosynthetic
3) Which four elements make up approximately 96% of
living matter?
a. carbon, sodium, chlorine, magnesium
b. carbon, sulfur, phosphorus, hydrogen
c. carbon, oxygen, sulfur, calcium
d. oxygen, hydrogen, calcium, sodium
e. carbon, hydrogen, aluminium, oxygen
4) All members of which of the following groups have the
greatest number of characteristics in common?
a. class
b. family
c. genus
d. phylum
e. order
5) The fluid mosaic model describes membranes as fluid
because _________.
a. the phospholipids and proteins move around within the
bilayer
b. the phospholipid molecules are bonded to one another, making
them more moveable
c. the phospholipids of membranes are constantly moving from one
layer to the other layer
d. the phospholipids move from place to place around the
motionless member proteins
e. the membrane is composed mainly of water
Kindly help me with these questions please, much appreciated
(:
1 - d
2 - c
3 - either b or c (the most abundant are C, H, O & N,
followed by S, P & Ca), not a very fair question.
4 - either d or c (Kings Play Chess On Fine Green Silk),
depending on how you interpret the question.
5 - a