BENCHMARK REVIEW PART 1 (DE BIO. 181)

A student notices that the leaves of a potted sunflower placed near a window gradually bend and face the direction of the sunlight throughout the day. This movement helps the plant capture more light for food-making process. The movement of plants toward sunlight is referred to as —

• Photosynthesis
• Phototropism
• Adaptation
• Dormancy

Which of the following best describes the difference between a structural adaptation and a behavioral adaptation?

• Structural adaptations are caused by change in the environment and behavioral adaptations are the effects of change in the structure of DNA.
• Structural adaptations are usually caused by a gene mutation and behavioral adaptations arise out of the organism's need to respond to the environment.
• Structural adaptations create new species and behavioral adaptations change existing species
• Structural adaptations involve only changes in genes, where behavioral adaptations always involve both social and genetic changes.

What is involved in the development of a zygote into a mature adult form of an organism?

• Cell division and meiosis
• Cell differentiation and cell division
• Cell differentiation only
• Cell division only

While hiking in the snowy mountains, a student spots a snowshoe hare whose white fur makes it nearly invisible against the snow. This feature helps the hare avoid predators during winter. What adaptation is used to help an animal blend with its surroundings?

• Camouflage
• Instinct
• Hibernation
• Mimicry

The main difference between sexual and asexual reproduction is —

• sexual reproduction requires one parent while asexual reproduction requires two.
• only plants can reproduce asexually.
• sexual reproduction requires two parents while asexual reproduction requires only one.
• asexual reproduction produces a larger variety in the offspring.

In a desert, a lizard has skin that blends in with the sandy environment, making it less visible to predators. This feature increases its chances of survival and allows it to produce more offspring. A characteristic that helps an organism survive and reproduce in its environment is called —

• an adaptation
• a genetic mutation
• a response to stimulus
• a homologous structure

Which statement is true about Modern Taxonomy?

• It is a continually changing field and studies continue today.
• Until more fossils are discovered, scientists cannot continue additional research on the classification of modern organisms.
• The classification of organisms has not changed since Linnaeus’ time.
• All living organisms are currently classified and there is little debate on their current classifications.

The two-word system used in Biology for naming organisms is called —

• Polynomial equations
• Binomial nomenclature
• Genus species
• Dichotomous system

The image shows a branching diagram of reptiles and birds. Which statement is true?

• Birds and dinosaurs evolved separately.
• Birds are more closely related to crocodiles than lizards.
• Birds evolved independently.
• Birds share the most characteristics with lizards.

When new evidence is found concerning an organism, in the Modern System of Classification, the —

• organism can be classified into a new taxa.
• organism will no longer be classified.
• organism is determined to be extinct.
• classification system is considered invalid.