Q1 LE2

The type of asexual reproduction wherein an organism can develop and create offspring without fertilization is called ______.

• Parthenogenesis
• Budding
• Fission
• Fragmentation

Which among the choices below CORRECTLY describes fission?

• A sea anemone separates into two equal sizes
• A starfish having one of its arms broken
• A flatworm being cut diagonally
• A hydra having a small outgrowth

What is an ADVANTAGE of asexual reproduction?

• It requires the involvement of specialized reproductive cells from two parents
• Increases genetic variation in the population
• Allows organisms to reproduce without a mate
• Ensures that offspring are better adapted than the parents

What is a DISADVANTAGE of sexual reproduction?

• Requires more time and energy compared to asexual reproduction
• Increases genetic variation among offspring
• It helps species adapt more easily to changing environments
• It usually involves the production of large numbers of offspring in a short time

Among the following, vertebrates switch to parthenogenetic reproduction EXCEPT one:

• Response to low population density
• Unavailability of males
• Physical and physiological barriers
• Increased opportunities for cross fertilzation

Which is CORRECT between parthenogenesis and hermaphroditism?

• Parthenogenesis requires 2 parents, hermaphroditism requires only 1
• Parthenogenesis produces lesser genetic variation than hermaphroditism
• Both are sexual modes of reproduction
• Parthenogenesis does not need a mate to produce offspring, hermaphroditism does .

A critically endangered animal lives in the deep sea. What mode of reproduction would best ensure the continuation of its species?

• Internal Fertilization
• External fertilization
• Parthenogenesis
• external fertilization

Which of the following best describes a hermaphroditic organism?

• It reproduces only through parthenogenesis.
• It possesses both male and female reproductive organs.
• It can only reproduce with males of its species.
• It alternates between sexual and asexual reproduction.

What is the main advantage of hermaphroditism in animals such as earthworms?

• It allows them to fertilize plants.
• It increases the chances of successful mating when mates are scarce.
• It guarantees offspring are genetically identical.
• It avoids the need for gametes.

Human sperm cells first arise in the ___.

• prostate gland
• vas deferens
• testicles
• epididymis