Which of the following is NOT a characteristic of sexual reproduction?
A.Involves two parents
B.Produces genetically identical offspring
C.Involves fusion of gametes
D.Results in genetic variation
What is the main function of the tail in a sperm cell?
A.To store genetic material
B.To provide energy
C.To enable swimming movement
D.To protect the nucleus
Where does fertilization typically occur in humans?
A.In the ovary
B.In the uterus
C.In the oviduct (fallopian tube)
D.In the vagina
Why do fish and frogs lay hundreds of eggs?
A.They have more space in water
B.To ensure at least some eggs survive and develop
C.They cannot count their eggs
D.Water makes them produce more eggs
What is IVF commonly known as?
A.Internal fertilization
B.Test tube baby technique
C.Natural fertilization
D.Cloning
What is the correct sequence of early embryonic development?
A.Zygote → Foetus → Embryo → Baby
B.Embryo → Zygote → Foetus → Baby
C.Zygote → Embryo → Foetus → Baby
D.Foetus → Embryo → Zygote → Baby
Which animals are viviparous?
A.Animals that lay eggs
B.Animals that give birth to live young ones
C.Animals that undergo metamorphosis
D.Animals that reproduce asexually
What type of fertilization occurs in frogs?
A.Internal fertilization
B.External fertilization
C.Both internal and external
D.No fertilization needed
What is metamorphosis?
A.Change in diet of an animal
B.Transformation from larva to adult through drastic changes
C.Movement from water to land
D.Process of laying eggs
How does binary fission occur in amoeba?
A.Parent divides into four cells
B.Parent produces buds
C.Parent divides into two equal parts
D.Parent lays eggs
Where are sperms produced in the male reproductive system?
A.Penis
B.Sperm ducts
C.Testes
D.Prostate gland
What provides energy for sperm movement?
A.The head of the sperm
B.The tail of the sperm
C.Mitochondria in the middle piece
D.The egg cell
Why is the egg cell much larger than the sperm cell?
A.To swim faster
B.To store nutrients for early development
C.To produce more eggs
D.To attract more sperms
Which part of the female reproductive system is the site of embryo development?
A.Ovary
B.Oviduct
C.Uterus
D.Vagina
What happens to a tadpole during metamorphosis?
A.It grows wings
B.It develops legs and lungs while losing its tail
C.It becomes a fish
D.It starts laying eggs
How are identical twins formed?
A.Two eggs fertilized by two sperms
B.One fertilized egg splits into two
C.Two eggs fertilized by one sperm
D.External fertilization
What is the advantage of internal fertilization over external fertilization?
A.More eggs are produced
B.Higher chance of successful fertilization
C.Faster development
D.Less energy required
Which statement about oviparous animals is correct?
A.They give birth to live young
B.Development occurs inside the mother
C.They lay eggs that develop outside the body
D.They only reproduce asexually
In budding, what happens to the offspring?
A.It remains permanently attached to parent
B.It develops from an outgrowth and eventually separates
C.It forms inside the parent
D.It develops from broken pieces
What was unique about Dolly the sheep?
A.First animal to reproduce asexually
B.First mammal cloned from an adult cell
C.First sheep to live in a laboratory
D.First animal born through IVF
Why do animals that undergo external fertilization produce more gametes?
A.They have more reproductive organs
B.To compensate for losses due to predation and environmental factors
C.They live longer
D.Water makes them produce more
What is the main difference between embryo and foetus?
A.Embryo is larger than foetus
B.Foetus has identifiable body parts while embryo doesn't
C.Embryo comes after foetus
D.There is no difference
Which process does NOT occur in asexual reproduction?
A.Cell division
B.Growth
C.Fusion of gametes
D.Formation of new individuals
What is the jelly-like coating around frog eggs for?
A.Nutrition for developing embryo
B.Protection and keeping eggs together
C.Helping eggs float
D.Attracting sperms
In which type of animals does the embryo develop inside an egg with a hard shell?
A.Fish
B.Frogs
C.Birds
D.Hydra
What determines whether a bee egg develops into a queen, worker, or drone?
A.Temperature of the hive
B.Size of the egg
C.Whether the egg is fertilized and the diet provided
D.Time of year
Why can't humans reproduce asexually like hydra?
A.Humans are too large
B.Humans have complex body organization requiring sexual reproduction
C.Humans live on land
D.Humans don't have tentacles
What is the role of the nucleus in fertilization?
A.It provides energy
B.It contains genetic material that fuses during fertilization
C.It helps the sperm swim
D.It breaks down the egg wall
Which statement about test tube babies is correct?
A.They develop entirely in test tubes
B.Only fertilization occurs outside the body
C.They are genetically modified
D.They cannot reproduce naturally
How many parents are involved in binary fission?
What adaptation helps sperm cells move through liquid?
A.Large size
B.Round shape
C.Tail for swimming
D.Multiple nuclei
During which stage can you identify the gender of a human baby?
A.Zygote stage
B.Early embryo stage
C.Foetus stage
D.Only after birth
What is the advantage of genetic variation from sexual reproduction?
A.Offspring are identical to parents
B.Better adaptation to changing environments
C.Faster reproduction
D.Less energy required
Why do butterfly eggs hatch into caterpillars instead of butterflies?
A.Eggs are damaged
B.Butterflies undergo complete metamorphosis
C.Temperature is wrong
D.Not enough food
What happens if frog eggs are laid on land instead of water?
A.They develop faster
B.They dry out and die
C.They turn into toads
D.They grow larger
In humans, how many eggs typically mature and release each month?
A.Hundreds
B.About 10-20
C.One
D.None
What is the main purpose of the large number of mitochondria in sperm's middle piece?
A.To store genetic material
B.To provide energy for swimming
C.To digest the egg membrane
D.To produce hormones
Which animals would you definitely NOT be able to collect eggs from?
A.Frogs and fish
B.Birds and reptiles
C.Dogs and cats
D.Insects and spiders
Why was Dolly the sheep identical to the Finn Dorsett sheep and not the Scottish Blackface ewe?
A.The Finn Dorsett sheep was her mother
B.The nucleus with genetic material came from Finn Dorsett sheep
C.She was fed Finn Dorsett milk
D.Scottish Blackface genes were removed
How does implantation relate to pregnancy?
A.It ends pregnancy
B.It is when the embryo attaches to the uterus wall
C.It is when the baby is born
D.It is when eggs are released
What would happen if a hydra's bud didn't separate from the parent?
A.Both would die
B.They would continue living as a colony
C.The bud would shrink
D.The parent would absorb it back
Why is reproduction essential for species but not for individual survival?
A.Individuals can live without reproducing
B.Reproduction uses too much energy
C.Only some individuals need to reproduce
D.Reproduction is harmful to individuals
What role does temperature play in reptile reproduction?
A.It determines egg size
B.It can determine the sex of offspring in some species
C.It prevents egg laying
D.It has no effect
Which reproductive strategy would be most advantageous in a stable, unchanging environment?
A.Sexual reproduction with high genetic variation
B.Asexual reproduction producing identical offspring
C.External fertilization
D.Metamorphosis
What is the primary function of the uterus?
A.To produce eggs
B.To produce hormones
C.To provide a place for embryo development
D.To store sperms
How do young ones receive nutrition in viviparous animals?
A.From egg yolk
B.Through the placenta from the mother
C.They don't need nutrition
D.From the environment
Why might cloning be controversial?
A.It's too expensive
B.It raises ethical concerns about creating life artificially
C.It always fails
D.Cloned animals live forever
What allows a frog to breathe both in water (as tadpole) and on land (as adult)?
A.It holds its breath
B.Metamorphosis changes gills to lungs
C.It never leaves water
D.It uses its tail to breathe
In a bee colony, why do worker bees not reproduce?
A.They are male bees
B.They are sterile females
C.They are too young
D.They are too busy working
What would be the main challenge in conserving species that reproduce through external fertilization?
A.They reproduce too slowly
B.They need specific water conditions for successful reproduction
C.They only reproduce once
D.They cannot be observed