BIO 2 EXAM 2 PRACTICE TEST

Which of the following groups of plants is most likely to undergo the process of coevolution with a pollinating animal?

A cherry tree

Which of the following is a distinctive feature shared by all land plants?

Growth from apical meristems

Photosynthesis by bryophytes and lycophytes 300-360 million years ago removed from the atmosphere, which produced a global climate which eventually promoted the success of seed plants.

carbon dioxide . . . drier, cooler

You are trying to determine whether the green organism that you found in a pond sample is a charophyte or simple plant. Finding which of the following characteristic would be most helpful in doing so?

Sexual reproduction

Photosynthesizers in the have primary plastids, which were aquired by endosymbiosis of a .

Archaeplastida . . . autotrophic prokaryote

You find a bloom of blueish green microscopic organisms in a coastal embayment. After bringing some cells from it back to the lab you find that they release oxygen as they photosynthesize, and that they have no nucleus. You therefore determine that this bloom contains

Cyanobacteria

Kelp, a multicellular photosynthetic seaweed that is anchored to the seafloor by rootlike structures and can grow to heights of 60 m, is a kind of

Stramenopile

Why has the development of fruit been a trait that was selected for in angiosperms?

because fruit can increase dispersal of seeds

Kale, bananas, strawberries, corn, and broccoli are all plants that can be purchased at your local grocery store. What feature unites all of these plants?

The evolution of all of them was shaped by thousands of years of artificial selection.

A tree produces ovulate and pollen cones, and no flowers. By what mechanism is the pollen of this plant most likely to be dispersed?

Wind

A population of red oaks is found on an island off the coast of Maine which has historically had very few herbivores. In the 1990s, the winter moth, an invasive species, was introduced to Maine and establishes a healthy population on this island. Winter moths are herbivores and consume oak leaves.

Directional selection is likely going to cause an increase in the concentration of phenolic compounds (secondary metabolites) in leaves

Which of the following traits are present in both Archaea and Eukarya?

2 and 4 (histones and chromosomes)

In what way does the green alga Ulva lactuca resemble land plants?

It has a complex life cycle with alternation between multicellular diploid and haploid generations

Many flower traits are specifically attractive to a certain type of pollinator. For example, the scent of rotting flesh is very attractive to certain flies, but is not attractive at all to most other pollinators. What adaptive purpose is served by this kind of "niche marketing" of flowers to specific pollinators?

Attracting specialized pollinators helps to increase the likelihood that pollen will be delivered to another flower of the same species. If more generalist pollinators were used, the odds would be greater that pollen will end up on the stigma of a different species.

Eukaryotic __ plastids are the result of an endosymbiotic event that involved cyanobacteria as endosymbionts. Since this original endosymbiotic event, some DNA may have been exchanged between the two symbiotic partners in a process called

primary plastids…..horizontal gene transfer

Of the following, the plant that has an adaptation that allows it to be the tallest is

fern, because of its vascular system

Which of the following groups is NOT in the same supergroup as land plants?

brown algae

Which of the following statement about protists phylogeny is correct?

The group "protist" is paraphyletic and the group "Archaeplastida" is monophyletic

All protists

are eukaryotic

I’m interested in building a nice coffee table from a plant in my backyard. What kind of plant would be the LEAST useful for my project?

One with flagellated sperm

Chemoheterotrophic bacteria obtain their carbon from and their energy from .

organic molecules… organic molecules

You find something green growing in water. Like a good biologist, you collect the green thing and subject it to a battery of scientific tests. You figure out that the female gametophyte retains the embryo within its tissues. Armed with this fact, you can confidently rule out the possibility of this green thing being a…

Chlorophyte

Which of the following is true concerning flowering plants?

The flower includes sporophyte tissue.

These silica shells were created by a protozoan with filose pseudopodia. That organism is a

radiolarian, a type of Rhizarian

Which of the following organisms is most closely related to your pet cat?

choanoflagellates

Bacteria can gain new genetic material in many ways. How many of the following pairs are correct?

Two are correct

Bacteria are important in the global carbon cycle because

some can fix N₂ and thereby increase primary production rates

The marine, free-living Stilbonematinae (a type of round worm in the phylum Nematoda) inhabit marine sands and are characterized by an association with ectosymbiotic bacteria. The bacteria are Gram-negative, coccus, chemoautotrophic sulfur oxidizers. Which of the following accurately describes these bacteria?

They are round-shaped, use energy from inorganic molecules to create organic molecules and have a thin peptidoglycan cell wall

You find a plant with four basic plant adaptations. Which adaptation would most direcly indicate that the plant is able to tolerate very dry desert habitats?

Seeds

A species of plant lives close to a hot, dry environment. Which adaptation would help this species to colonize the hot, dry habitat?

Leaves that have low surface area to volume ratio

Which of the following statements about the conifer life cycle is accurate?

Conifer pollen grains contain male gametophytes

In which group is the sporophyte generation smaller than and completely dependent upon the gametophyte generation?

bryophytes

Photosynthesis by bryophytes and lycophytes 300-360 million years ago removed from the atmosphere, which produced a global climate which eventually promoted the success of seed plants.

carbon dioxide . . . drier, cooler