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WorksheetsSEM 2 BIO ??? REVIEW
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Egg cells and sperm cells are called:
a)
Spores
b)
Gametes
c)
Algae
d)
Diploid
2.
Having HALF the normal number of chromosomes for that species
a)
haploid
b)
diploid
3.
Bacteria are called _____ because their genetic material is not contained in a nucleus.
a)
prokaryotes
b)
eukaryotes
c)
cells
d)
viruses
4.
These are tiny packets of cells for asexual reproduction
a)
Spores
b)
Sperm
c)
Eggs
d)
Diploid
5.
Algae, all Plants and the animal group called the Cnidarians (which includes the jelly fish) all reproduce with this life cycle:
a)
The Alternation of Generations
b)
The Confusion of Young Science Students
c)
Sexual reproduction with Eggs or Ovules being fertilized by Sperm cells
d)
Asexual reproduction with spores being spread by wind.
6.
Natural selection produces evolutionary change because it changes a population's
a)
genetic composition
b)
number of species
c)
randomness
d)
strength
7.
Humans choosing which animals or plants will reproduce, and therefore pass on their genetic traits is called:
a)
natural selection
b)
artificial selection
c)
succession
d)
stabilizing selection
8.
Natural selection requires these 3 things:
1. variation within a species that can be inherited.
2. over reproduction
3. struggle for existence.
1. variation within a species that can be inherited.
2. over reproduction
3. struggle for existence.
a)
TRUE
b)
FALSE
9.
Anything the restricts the number of individuals living in a population is
a)
a limiting factor
b)
population spacing
c)
symbiosis
d)
the biotic potential
10.
Individual organisms do not
a)
evolve
b)
reproduce
c)
have variations
d)
have DNA
11.
Pollination occurs when pollen from the the anther on the top of the male stamen contacts the female:
a)
filament
b)
pistil
c)
stigma
d)
ovary
12.
Multicellular, heterotrophic, eukaryotes.
a)
Fungi
b)
Plants
c)
Protists
d)
Animals
13.
What does a gastrovascular cavity do?
a)
Circulation and food getting
b)
Exchange gasses as well as excretion
c)
Digestion and circulation
d)
Reproduction and defense
14.
Sponges, Cnidarians, Flatworms, Roundworms, and segmented worms all get their oxygen:
a)
through their lungs
b)
through their gills
c)
by simple diffusion across their body surface
d)
through tracheal tubes
15.
Which one of the following taxonomic categories contains more organisms?
a)
Species
b)
Order
c)
Phylum
d)
Family
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