Reproduction

What is sexual reproduction?

• A process involving only one parent organism.

• The fusion of male and female gametes, resulting in offspring with genetic variation.

• A method of reproduction that does not involve gametes.

• A type of reproduction that occurs only in plants.

How do environmental factors influence reproduction?

• They have no effect on reproduction.

• They can affect reproductive success by influencing temperature, availability of resources, and habitat.

• They only affect the growth of organisms, not reproduction.

• They only influence reproduction in aquatic environments.

What is the difference between internal and external fertilization?

• Internal fertilization occurs inside the female's body, while external fertilization occurs outside, usually in water.

• Internal fertilization occurs outside the female's body, while external fertilization occurs inside.

• Both internal and external fertilization occur inside the female's body.

• Internal fertilization is a method used only by mammals, while external fertilization is used by all other animals.

What is the significance of genetic variation in reproduction?

• It decreases the chances of survival in changing environments.

• It has no impact on adaptation.

• Genetic variation increases the chances of survival and adaptation in changing environments.

• It only affects physical traits, not survival.

What is an example of asexual reproduction?

• A worm is split in two; each half grows back into a complete worm.

• A plant produces seeds that grow into new plants.

• A frog lays eggs that hatch into tadpoles.

• A starfish regenerates a lost arm.

What attracts animals needed for plant reproduction?

• Flower shape, color, and odor

• Leaf size and texture

• Soil type and moisture

• Sunlight exposure and temperature

What determines the height of a plant?

• Genetic factors only

• Environmental factors only

• Both genetic and environmental factors

• Soil type only

What is cloning in the context of asexual reproduction?

• Cloning is a method of sexual reproduction where two organisms combine their genetic material.

• Cloning is a method of asexual reproduction where an organism is produced that is genetically identical to the parent.

• Cloning is a process that involves the mixing of DNA from different species.

• Cloning is a technique used to create genetically modified organisms.

What is the relationship between the number of offspring and body length?

• The longer the mother, the greater the number of offspring.

• There is no relationship between body length and number of offspring.

• Shorter mothers tend to have more offspring.

• Body length has a negative correlation with the number of offspring.

What role do pollinators play in plant reproduction?

• They help in the growth of plants by providing nutrients.

• They assist in the transfer of pollen from one flower to another, facilitating fertilization.

• They protect plants from pests and diseases.

• They increase the size of the flowers for better visibility.