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Questions and Answers

What is one advantage of sexual reproduction compared to asexual reproduction?

It allows for organism cloning.

It leads to greater genetic variation. (correct)

It requires less time for offspring development.

It necessitates less energy expenditure.

Which of the following pairs are organisms that reproduce sexually?

Bacteria and Roses

Fungi and Butterflies

Chickens and Sunflowers

Iguanas and Lobsters (correct)

How does internal fertilization differ from external fertilization?

Internal fertilization involves sperm fertilizing eggs outside the female.

Internal fertilization occurs in the water.

External fertilization typically involves species like fish and amphibians. (correct)

External fertilization happens within the female.

Which statement is true regarding flowers as reproductive organs?

Some flowers can have both male and female reproductive organs. Signup and view all the answers

What is NOT a typical characteristic of asexual reproduction?

It requires a mate for reproduction. Signup and view all the answers

What is a primary characteristic of asexual reproduction?

Produces identical offspring Signup and view all the answers

Which of the following organisms primarily reproduces asexually?

Bacteria Signup and view all the answers

What term describes the process where an organism divides into two identical cells?

Binary Fission Signup and view all the answers

In sexual reproduction, which of the following statements is true?

Involves genetic material from two parents Signup and view all the answers

What advantage does asexual reproduction have over sexual reproduction?

Faster population growth Signup and view all the answers

Which of the following organisms does NOT reproduce asexually?

Amphibians Signup and view all the answers

What is budding in terms of reproductive strategy?

Outgrowth from a parent organism Signup and view all the answers

Which statement about spores is true?

They are airborne cells released from a parent Signup and view all the answers

What is regeneration in the context of asexual reproduction?

The growth of a new body part after a part has been lost Signup and view all the answers

What characterizes fragmentation as a means of asexual reproduction?

A parent breaks into parts that regenerate into new individuals Signup and view all the answers

Which of the following is an example of a method of vegetative propagation in plants?

Plant cuttings Signup and view all the answers

What is the primary result of the mitosis process in asexual reproduction?

An exact copy of the parent cell Signup and view all the answers

Which organism is NOT known to reproduce asexually?

Human Signup and view all the answers

What is a disadvantage of asexual reproduction?

It can lead to offspring inheriting genetic diseases from the parent Signup and view all the answers

What type of reproduction involves the combination of genetic material from two parents?

Sexual reproduction Signup and view all the answers

Which of the following characteristics is associated with asexual reproduction?

Involves only one parent Signup and view all the answers

Study Notes

Asexual Reproduction

Requires only one parent
Offspring are genetically identical to the parent (clones)
Faster and uses less energy than sexual reproduction
Common in unicellular organisms
Several methods exist, including binary fission, budding, fragmentation, plant cuttings, and spore formation.

Sexual Reproduction

Involves two parents
Offspring have a mixture of genetic material from both parents, leading to variation
Slower process and requires more energy
Common in multicellular organisms.
Involves meiosis and fertilization.
Methods include internal and external fertilization

Asexual Reproduction: Specific Methods

Binary fission: A single cell divides into two identical cells. Common in bacteria and protists.
Budding: A new organism develops as an outgrowth from the parent organism. Occurs in some invertebrates like hydra.
Fragmentation: A parent organism breaks into fragments, each of which develops into a new organism. Found in some invertebrates like starfish.
Spore formation: Specialized cells that develop into new organisms. Common in fungi, algae, and some plants.
Vegetative propagation: Asexual reproduction in plants using stems, roots, or leaves.

Sexual Reproduction: Specific Methods

Internal fertilization: Fertilization occurs inside the female's body. Common in mammals, birds, reptiles.
External fertilization: Fertilization occurs outside the female's body. Common in fish and amphibians.
Meiosis: The process of cell division that produces reproductive cells (gametes) with half the number of chromosomes as the parent cell. Essential for sexual reproduction.