BioMO2B First Test review

In the figure above which number represents the mature gametophyte

7

which of the following is LEAST associated with the others Horizontal gene transfer Conjunction Binary Fission Transformation

Binary Fission

What do all deuterostomes have in common?

The pore (blastopore) formed during gastrulation becomes the anus.

Which part of the life cycle does a pollen grain represent?

a male gametophyte

Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

adaptive radiation

the type of life cycle seen in plants is called

alternation of generations

In a flowering plant the cells that give rise to sperm undergo meiosis in the

anthers

Diatoms

are autotrophs with a glassy cell wall that contains silica.

which type of reproduction is typical in molds

asexual reproduction through the production of spores

The pathogenic prokaryotes that cause cholera are _____.

bacteria that release an exotoxin

The fruit of the mistletoe ... the outside of the seed is sticky... What should be expected of the fruit if the viscosity of Viscum seeds is primarily an adaptiation for dispersal rather than an adaptation for infecting host plant tissues? It should _________

be nutritious to the dispersing organisms

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

brown alga

which mode of nutrition would you predict that a prokaryote would use if it is placed in an aquatic environment that had moderate sunlight available as well as dead plant material

chemoautotrophic

bacteria preform each of the following ecological roles. Which role does NOT involve symbiosis

decomposer

which of the following statements correctly describes the alternation of generations in a plant life cycle

diploid sporophytes that produce spores by meiosis alternate with haploid gametophytes that produce gametes by mitosis

all fungi reproduce sexually

false

A patient visits her Dr complaining of stomach cramps, vomitting , and nausea. When he takes bacteria sample, he determines E. Coli bacteria have used ______ to attach to the cells in her gastrointestinal tract

fimbriae

Fungi are found associated with the earliest plant fossils. Fungi may have helped plants become terrestrial by

forming associations to obtain water and minerals

which structure is found in angiosperms but not gymnosperms

fruit

The laying of eggs has what type of analog in angiosperms

fruit dispersal

which of the following statements regarding fungi is FALSE

fungi can break down only plant material

According to the fossil record, plants colonized terrestrial habitats _____.

in conjunction with fungi that helped provide them with nutrients from the soil

Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that most animals derive their nutrition by _____.

ingesting it

Many mammals have skins and mucous membranes that are sensitive to phenolic secretions of plants like poison oak (Rhus). These secondary compounds are primarily adaptations that _____.

inhibit herbivory

An organism that exhibits cephalization probably also _________

is segmented

If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably also

lack antibiotic-resistant genes

mycorrihizae are to the roots of vascular plants as endophytes are to vascular plants' _________

leaf mesophyll

which substance, by providing strength, allows sclerenchyma cells to provide support and play a role analogous to that of an animals skeleton

lignin

If you think of the earthworm body plan as a drinking straw within a pipe, where would you expect to find most of the tissues that developed from endoderm?

lining of the straw

Angiosperms consist of the clades

monocots and eudicots

which of the following is unique to animals? A. heterotrophy B. nervous system signal conduction and muscular movement C. flagellated gametes D. structural carbohydrate, chitin

nervous system signal conduction and muscular movement

Lichens

occur in a variety of colors and forms

which of the following best describes the physical relationship of the partners involved in lichens

photosynthetic cells are surrounded by fungal hypae

at which stage of a basidiomycete's life cycle would reproduction be halted if an enzyme that prevented the fusion of hyphae was introduced

plasmogamy

which of the following represents the male gametophyte of a conifer

pollen grain

Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogous to a human __________

putting more red blood cells into circulation when atmospheric oxygen levels decline

There is a good chance you will eat carrageenan today and that you will eat nori at some point in your life, if you haven't already. In either case, you will be eating a product of

red algae

The heterokaryotic phase of a fungal life cycle is a

stage in which hyphae contain two genetically different haploid nuclei

which of the following is a feature of the tube-within-a-tube body plan in most animal phyla

the mouth and anus form at the ends of the inner tube

What is the goal of bioremediation?

to clean up areas polluted with toxic compounds by using bacteria

prokaryotic cell walls function

to prevent the cell from bursting in a hypotonic environment.

the _______ represent the sporophyte generation of a conifer and the _____ produces gametophytes

tree; cone

each species of lichen has its own species of fungus

true

Viruses ___________

use the host cell to copy themselves and make viral proteins

__________ are heterokonts/stramenopiles that commonly are found decomposing dead animals in freshwater habitats

water molds