Unit 3: Genetics, Adaptations, Tropisms Review

What is the advantage of having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

Modern whales developed their traits through natural selection. What occurs during the process of natural selection?

• Organisms choose mates from other species to create new species

• Breeders selectively cross organisms with desired traits

• Only the fittest organisms can survive and reproduce

• Organisms remain exactly the same over time.

Type of reproduction?

• sexual; budding
• asexual; budding
• asexual; regeneration
• asexual; binary fission

Sexual reproduction requires ______ parent(s) and asexual reproduction requires ______ parent(s).

• one, one

• two, two

• two, one

• one, two

Tags

NGSS.MS-LS3-2

What is an advantage of sexual reproduction?

• Allows genetic variation
• Only needs one parent
• Happens very quickly
• Offspring are exact copies of parent

Tags

NGSS.MS-LS3-2

What is a segment of DNA called?

• Chromosome
• gene
• dominant trait
• nucleus

A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, for which trait should the farmer select?

• Taller stems

• Deeper roots

• Resistance to pesticides

• More cobs on plant

What determines your specific traits? (Like eye color)

• vacuole

• genes

• nucleus

• cytoplasm

Individual plants or animals in a population with certain desired traits are chosen by breeders, farmers, or ranchers to mate. The people hope to get the desired traits in the offspring.

• Natural selection
• Selective breeding
• Gene flow
• Mutations

Tags

NGSS.MS-LS4-5

The coral snakes that were able to survive the summer drought reproduced. Their offspring will likely be able to tolerate drought.

Natural selection [or] Selective breeding?

• Natural selection

• Selective breeding

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4