Biology Semester Exam 2 Flow of Energy and Relationships

The diagram above is intended to show relationships in an ecosystem. What do the arrows represent?

• The direction of population migration

• Differences in dietary habits

• Progressively smaller organisms

• The direction of energy flow

A food pyramid shows pictorially the flow of energy. In this food pyramid, which level contains the greatest amount of energy?

• Tertiary consumers

• Secondary consumers

• Primary consumers

• Producers

In what order are the levels in the diagrams?

• Population community ecosystem

• Organism community population

• Organism population community

• Ecosystem population community

A terrestrial food web is shown below.

Which of the following lists only organisms that are secondary consumers in this food web?

• Mice, rabbits, herbivorous insects, and

  squirrels

• Predaceous insects, toads, spiders, and foxes

• Spiders, foxes, owls, hawks, and snakes

• Insectivorous birds, seed-eating birds, owls, and hawks

Dogs (Canis familiaris) are most closely related genetically to which of the following organisms?

• African hunting dog (Lycaon pictus)

• Gray wolf (Canis lupus)

• Grizzy bear (Ursus arctos)

• Domestic cat (Felis catus)

The most specific scientific name of an organism is based on its -

• phylum and genus

• kingdom and phylum

• kingdom and species

• genus and species

The cell above most likely belongs to an organism of the kingdom--

• Animalia

• Plantae

• Fungi

• Eubacteria

Phylogentic trees are models that show the ancestrial relationships among taxonomic groups based on genetic similarities.

Which taxonomic group has the greatest genetic difference from Homo sapiens?

• Pongo

• M. sylvanus

• Hylobates

• Pan

Enchanted Rock State Natural Area is located in Central Texas. Enchanted Rock is a dome of granite. The area contains four easily identifiable communities. The table describes characteristics of each type of community in the area.

A student studying primary succession should focus on which of these communities?

• Open oak woodland

• Mesquite grassland

• Floodplain

• Granite rock

Monarch butterflies are extremely unpalatable, or unappetizing, to its predators. By possessing very similar orange and black banding patterns, the Viceroy butterfly is supplied with protection from predators attempting to avoid the unwelcome taste.

What adaptation is the Viceroy butterfly utilizing by looking so similar to the inedible Monarch butterfly?

• Mimicry

• Monophenotype

• Fitness

• Camouflage