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Class 8 Practice – Level 3 – Set 2 – Reproduction in animals
Total questions: 15
1.
How does sexual reproduction promote genetic diversity within a species?
By producing genetically identical offspring
Through genetic recombination during meiosis
By cloning individuals
By ensuring all offspring are haploid
None
2.
Which of the following mechanisms is least likely to occur in terrestrial animals?
Internal fertilization
Asexual reproduction
External fertilization
Parthenogenesis
None
3.
The acrosome of a sperm cell is crucial for:
Facilitating penetration of the egg membrane
Protecting the genetic material
Providing energy to the sperm
Storing enzymes for movement
None
4.
Which of the following reproductive strategies typically results in a higher survival rate of offspring?
Oviparity
Viviparity
Asexual reproduction
External fertilization
None
5.
Which hormone is primarily responsible for thickening the endometrial lining in preparation for a potential pregnancy?
Follicle-stimulating hormone (FSH)
Estrogen
Luteinizing hormone (LH)
Progesterone
None
6.
What is a primary disadvantage of asexual reproduction?
It requires more energy.
It produces genetically diverse offspring.
It can only occur in certain environments.
It limits genetic variation.
None
7.
Which structure in the female reproductive system is primarily responsible for the production of eggs?
Uterus
Ovary
Fallopian tube
Vagina
None
8.
What is one key difference between the fertilization processes in mammals and amphibians?
Mammals undergo internal fertilization, while amphibians usually undergo external fertilization.
Both mammals and amphibians use external fertilization.
Amphibians reproduce only through asexual means.
Mammals reproduce through budding.
None
9.
Which hormone initiates the development of ovarian follicles during the menstrual cycle?
Estrogen
Luteinizing hormone (LH)
Progesterone
Follicle-stimulating hormone (FSH)
None
10.
Genetic disorders can arise in offspring due to:
Errors during mitosis only
Environmental factors exclusively
Errors during meiosis and genetic mutations
Only through inheritance from both parents
None
11.
Which of the following organisms reproduces primarily through fragmentation?
Bacteria
Starfish
Fungi
Yeast
None
12.
During gametogenesis, which process specifically leads to the formation of sperm cells in males?
Oogenesis
Binary fission
Mitosis
Spermatogenesis
None
13.
Which event marks the beginning of the luteal phase in the menstrual cycle?
Menstruation
Fertilization
Ovulation
Follicular growth
None
14.
In females, the total number of eggs produced is generally:
Continuous throughout life
Limited and finite
Infinite, as long as conditions are favorable
Dependent on external fertilization
None
15.
Which of the following strategies would most likely enhance reproductive success in a variable environment?
Asexual reproduction
Sexual reproduction
Cloning
Parthenogenesis
None
1 out of 15
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