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WorksheetsReproductive biology Quiz for 7th Grade
Total questions: 12
Worksheet time: 6mins
Which reproductive strategy involves an embryo developing inside an egg within the mother's body until it hatches?
Vivipary
Ovovivipary
External fertilization
Sexual selection
Why would the development of a waterproof egg crucial for land animals? How would it help the egg develop and hatch?
To prevent predation
To reduce weight of the egg
To enclose internal water and prevent dehydration
To make eggs more colorful
In the context of sexual selection, what might be a key factor in how animals like salmon choose their mates?
Random chance
Genetic fitness and physical characteristics
Size of their habitat
Number of eggs produced
What unique adaptation do some amphibians use to protect their young?
Camouflage
Mouthbrooding
Underground nesting
Rapid migration
Why are mammals like the platypus considered unique in their reproductive strategy?
They do not reproduce at all
They are mammals that lay eggs
They have no mammary glands
They cannot nurse their young
The amniotic membrane solved a critical evolutionary challenge by:
Making eggs more attractive
Increasing egg size
Enclosing water internally for land-based reproduction
Preventing egg rotation
What primary function does the placenta serve in mammalian reproduction?
Producing hormones
Exchanging nutrients and waste between mother and embryo
Generating body heat
Protecting against infections
Metamorphosis in amphibians represents:
A static developmental process
A dramatic transformation from larval to adult form
A method of asexual reproduction
Why do sea turtle hatchlings emerge at night?
To avoid predators
Because it's cooler
To follow moonlight to the ocean
To conserve energy
Which reproductive characteristic is shared by ALL mammals?
Laying eggs
Having a pouch
Nursing young with mammary glands
Living exclusively on land
Marsupials
lay eggs at night only
have an umbilical cord
lay eggs on a beach
raise their young in a pouch.
A chick’s first breath of air is likely to come from an air pocket located
in the placenta
at the rounded end of the egg
on the side of an egg
in the yolk
