Bio Exam #4

Front 1

Seed embryos are nourished by a triploid tissue called

Back 1

Endosperm

Front 2

Sperm transport tube found in a the carpel

Back 2

Pollen-tube

Front 3

Multicellular organ that consists of nodes and internodes

Back 3

Stem

Front 4

Transport pathway which is a continuum of cytosol connected plasmodesmata

Back 4

Symplast

Front 5

Group of actively or potentially interacting individuals of a single species

Back 5

Population

Front 6

Factors outside the organisms which include light, day length, temperature, pH, moisture, etc are classified as

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Abiotic

Front 7

The result when two or more species (or individuals) are using the same limited resources

Back 7

Competition

Front 8

Water sap is conducted through

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Tracheids and vessel elements

Front 9

Responsible for generating and maintaining the resting membrane potential of neurons

Back 9

Na+/K+ ATPases

Front 10

Root elongation occurs as cells increase their length by up to 10x in the

Back 10

Elongation zone

Front 11

The relationship between two organisms in which one benefits and the other is harmed is termed

Back 11

Parasitism

Front 12

An example of a secondary consumer would be

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Human and Fox

Front 13

During the repolarization phase of an action potential, ___ions rush ___ of the cell through specific ion channels

Back 13

K+; out

Front 14

This part of the vertebrate brain is primarily responsible for maintaining day/night (circadian) rhythm

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Epithalamus/pineal gland

Front 15

This network of interconnected groups of neurons scattered throughout the brain stem serves to excite the cerebrum and promote a state of wakefulness, it is called

Back 15

The reticular activating system

Front 16

Higher thought is a product of which part of the brain

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Cerebral cortex

Front 17

Guttation is a consequence of

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Root pressure

Front 18

Water-water bonding aids transpirational pull this is called

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Cohesion

Front 19

Ultimately, ths sink for water from a plant is mediated by the _____which allow water to exit the plant

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Stomata

Front 20

The most abundant neuroglia cell in the brain supports neuronal metabolism and may even modulate neuronal signaling, it is called an

Back 20

Astrocyte

Front 21

A human being decides to eat a salad of greens. At what trophic level is the person eating

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Primary

Front 22

The black cottonwood extends from Alaska through Oregon, but it is confined to flood plains. The black cottonwood has a narrow

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Range

Front 23

If a voltage-gated K+ ion channel were activated (opened), what would be the effect on the plasma membrane

Back 23

Repolarization/hyperpolarization

Front 24

The greatest number of organisms would be expected to exist at which trophic level

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Primary producers

Front 25

Regarding population growth, in the Logistic Growth Model, as the number of individuals in a population, N, approaches the carrying capacity, K, the rate of growth

Back 25

Slows down as N approaches K

Front 26

Ultimately, all solutes that enter the xylem are "filtered" through a plasma cell membrane by virute of the

Back 26

Casparian strip

Front 27

Bill length in the Rock Nuthatch varies among poplulations found in Greece, Iran, and China. This is an example of

Back 27

Character displacement

Front 28

A common cause of "overshoot" of the carrying capacity is

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Predator removal

Front 29

In the plants, co-transport of solutes is mediated by

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Hydrogen ions

Front 30

Which of the following characteristics does not describe monocots

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Vascular bundles in stem arranged in circular pattern

Front 31

Which of the following place limits on habitat

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Local climate, suitable soil, suitable vegetation, competition with other species

Front 32

A group of individuals of the same species with the potential to interact is a

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Population

Front 33

High plant and animal diversity is characteristic of this terrestrial equatorial biome

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Tropical rain forest

Front 34

Poison arrow dart frogs are brightly colored as a warning to would be predators. The frogs will lose their toxin if maintained in captivity however. This is because

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They obtain their toxin from their diet of exotic fungi

Front 35

Heat is transferred from warmer equatorial regions to cooler regions by virtue of

Back 35

Wind and Ocean currents

Front 36

An example of an abiotic factor is

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Wind, light, magnetic forces, and gravity

Front 37

Two species cannot co-exist indefinetly when utilizing the same limited resources. This is termed

Back 37

Competitive exclusion