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WorksheetsSexual Reproduction
Total questions: 28
Worksheet time: 14mins
Reproduction in which the genetic materials from ______ different cells combine producing an offspring is Sexual reproduction.
2
4
1
5
Sexual Reproduction occurs in organisms that are eukaryotic, have a nucleus
true
false
The cells that combine for sexual reproduction are called
sex cells
animal cells
simple cells
The female sex cell is called an
egg
sperm
The male sex cell is called the
egg
sperm
What is it called when an egg cell and sperm cell join together
Fertilization
Reproduction
The genetic variation among offspring is called
Diverse offspring
Simple offspring
Reproduction
True or False
Half of the DNA comes from the mother and Half of the DNA comes from the father
True
False
Due to genetic variation, individuals within a population have
Major differences
Slight differences
Plants
grow big
resist diseases
get sick often
Selective Breeding
Used to develop many types of plants and animals that have desirable traits
Agriculture/
Farming:
Better plants and larger animals
Creates desirable pets
All answer choices
A disadvantage of sexual reproduction is
Time and energy
Desirable pets
Better plants
Developing traits to resist harsh environments
What can develop to resist harsh environments that allow an organism to survive?
Traits
Fertilization
Selective Breeding
Organisms have to _______ and _______ until they are old enough to produce sex cells.
grow and develop
live and breath
die and regenerate
Why is searching and finding a mate a disadvantage of sexual reproduction?
Searching can expose individuals to predators, diseases or harsh environmental conditions
Searching makes the animals cranky
Finding a mate is difficult in the wild
Fertilization cannot take place during pregnancy.
True or False
True
False
Requirements for successful reproduction are:
Finding a mate
Fertilization
Creating the offspring
All answer choices
True or False
Many animals have features and behaviors to attract a mate.
True
False
What are examples of displays in birds?
Exotic plumage (colorful feathers),
Dancing,
Vocalization,
Nest Making
Dancing and Nest Making
Vocalization and Dancing
Nest Making
and Exotic Plumage
What animal is an example of bioluminescence?
Birds
Deer
Jellyfish
Elephants
Bioluminescence means an animal
glows to attract mates
swims in the ocean
floats to the surface
Biochemistry is
activated to glow in a deep sea relative of the jellyfish and firefly
a way of reproduction
Bright colors, large antlers, and tusks are examples of
Displays
Bioluminescense
What happens to antlers after mating season?
They fall off
They grow bigger
They shrink
Antlers and tusks are used to
defend females from other suitors
protect themselves
Animals that can sense smell, use ______ to attract a mate
scent
feathers
bright colors
Smells can help males and females find eachother over great distances.
True
False
Insects , Reptiles, and Mammals all attract potential mates with
Scent
Color
Plumage
