Spiral MP1

What function is shared by immune and integumentary systems?

• excretion

• protection

• movement

• storage

Which of the following occurs during a lysogenic cycle?

• viral DNA is replicated and the host cell is not destroyed

• viral DNA is not replicated and the host cell is not destroyed

• viral DNA is not replicated and the host cell is destroyed

• viral DNA is replicated and the host cell is destroyed

The pant tissues Xylem (transport water up the plant stem), and Pholem (transport organic materials up/down the plant stem) are similar to what animal body system?

• digestive

• respitory

• excretory

• circulatory

Which group in the food web has the greatest available energy?

• hawks

• owls & ospreys

• rabbits, fish, & squirrels

• plants trees, & algae

In an Australian wetland ecosystem, sedges are one of the major producers. Moths eat the sedges and frogs eat the moths. Kookaburras eat the frogs. The frogs also eat ants and dragonflies, both of which get their energy from the sedges. Which would happen in this ecosystem if all the kookaburras died out?

• the frog population would decrease

• the ant population would decrease

• the dragonfly population would increase

• the sedge population would decrease

Why are ecosystems that undergo secondary succession more likely to reach equilibrium faster than ecosystems that undergo primary succession?

• soil already exists in secondary

• lichens break down rock faster in secondary

• secondary only occurs in warmer climates

• primary succession cannot reach equilibrium

Intensive fishing is one contributing factor to algae overgrowth in marine ecosystems. This overgrowth of algae poses a major problem for coral reefs. Which of the following is a possible explanation that relates the intensive fishing to the overgrowth of algae?

• Allows more sunlight to be available to algae increasing their growth.

• Decreases the competition between different algae species.

• Reduces the number of organisms available to feed on algae.

• Slows the spread of pathogens that reduce algal colonies.

A wasp feeds on the nectar of an orchid. In this process the wasp gains nutrition while picking up the orchid’s pollena (containing pollen) and spreads the plant’s pollen to the next flower visited. The relationship between the wasp and the orchid can be described as –

• reversible

• mutualistic

• parasitic

• predatory

The fact that all organisms use DNA for their genetic material is evidence that all organisms —

• have been genetically engineered

• evolve at the same rate

• share a common ancestor

• undergo sexual reproduction

Which statement about evolution is correct?

• Individuals can change their behavior, so individuals can evolve.

• Evolution applies to genetic changes over time, so depending on the lifespan of the organism, they may have time to evolve.

• Evolution applies to genetic changes over time in an entire population.

• Populations of organisms do not change, so if a variation in the organism's genetic makeup occurs, a new population is started.