Abeka Grade 10 Biology Test 8

Front 1

What type of symmetry does the worm shown below demonstrate?

Back 1

bilateral symmetry

Front 2

An important part of modern agriculture is maintaining an artificial environment in which plants and animals can grow. a farmer is growing various food plants, such as vegetables and grains.

Explain three ways that he can control abiotic factors and one way that he can control biotic factors.

For each method, list the factors controlled and briefly describe their effects on the plants.

Back 2

Abiotic factor of water can be affected directly by irrigation and drainage and indirectly by time of planting with different amounts of rainfall during different seasons. Affects all plant activities and is essential for life.

Abiotic factor of soil can be controlled by growing plants in purchased topsoil and by fertilization. Effects vary, since different plants have different optimum soil conditions; provides minerals and other nutrients and affects soil water and oxygen.

Abiotic factors of temperature can be affected strongly by radiation, so can be controlled by anything that affects that; can also be affected by growing plants indoors or (indirectly) by planting at different times of year. Affects all plant activities

The biotic factors of the use of insecticides to control pestilent insects, allowing plants to grow unhindered.

Front 3

Chickens will dig in the dirt with their feet to find seeds and insects to eat. in which group are chickens classified by their eating habits?

Back 3

omnivores

Front 4

In a coral reef, what level of ecology do the coral animals represent?

Back 4

population

Front 5

Sweet potatoes grow best when the soil pH (a measure of acidity) is between 5.0 and 5.9, but they can still grow when the pH is outside this range. what property of sweet potatoes does the pH range from 5.0 to 5.9 represent?

Back 5

optimum range

Front 6

What BEST explains why man is not considered a mammal?

Back 6

man is created in the image of God

Front 7

Cattle trample grass with their hooves, crushing it.

Back 7

amensalism

Front 8

A hawk captures and eats a rabbit.

Back 8

predation

Front 9

An orchid grows on a tree branch, neither hurting nor helping the tree.

Back 9

commensalism

Front 10

Bees feed on nectar from flowers and carry pollen from flower to flower on their legs.

Back 10

mutualism

Front 11

Wheat rust fungus grows on wheat, stealing nutrients from the wheat and hindering its growth.

Back 11

parasitism

Front 12

A snake and eagle both eat rodents from the same limited area.

Back 12

competition

Front 13

A mammal that enters a dormant state during the winter in which its body temperature falls to near the freezing point is said to ____.

Back 13

hibernate

Front 14

Evaporation, condensation, and precipitation are the three major processes of the _____.

Back 14

hydrologic cycle

Front 15

Some hoofed mammals have ____, head structures that are made of solid bone and shed every year.

Back 15

antlers

Front 16

Plants are usually on the ____ trophic level of a food chain.

Back 16

first

Front 17

A model showing all possible feeding relationships at each trophic level is an

Back 17

food web

Front 18

The first organisms that colonize a disturbed ecosystem are a

Back 18

pioneer species

Front 19

Animals that chew the cud are

Back 19

ruminants

Front 20

Because they have eggs, the echidna and platypus are ____ mammals.

Back 20

oviparous

Front 21

largest animal of all

Back 21

blue whale

Front 22

largest living marsupial

Back 22

kangaroo

Front 23

largest rodent

Back 23

capybara

Front 24

largest land-dwelling carnivore

Back 24

bear

Front 25

often called a sea cow

Back 25

manatee

Front 26

venomous, egg-laying mammal with a duck-like bill and webbed feet

Back 26

platypus

Front 27

slowest land mammal

Back 27

sloth

Front 28

largest living land animal

Back 28

elephant

Front 29

What term refers to man's God-given authority to use nature to meet his physical needs?

Back 29

dominon

Front 30

What is NOT a biogeochemical cycle?

Back 30

citric acid cycle

Front 31

What is NOT a characteristic of mammals?

Back 31

poikilothermic

Front 32

What is the mass of specialized tissue and blood vessels by which a developing mammal embryo is nourished?

Back 32

placenta

Front 33

What is a baleen whale?

Back 33

blue whale

Front 34

What group that consists of odd-toed hoofed mammals such as rhinos, horses, and tapirs?

Back 34

perissodactyls

Front 35

What is an example of a bovid?

Back 35

cattle

Front 36

What term refers to animals that are active at night?

Back 36

nocturnal

Front 37

What type of marine ecosystem occurs where nutrient-rich fresh water from rivers and streams meets and mixes with seawater?

Back 37

estuary

Front 38

What group of mammals that raise their young in special abdominal pouches?

Back 38

marsupials

Front 39

What type of symmetry characterizes mammals?

Back 39

bilateral symmetry

Front 40

found at high mountain altitudes

Back 40

alpine tundra

Front 41

includes praises, plains, African savannas, Russian steps, and Argentinian pampas

Back 41

grassland

Front 42

has well-defined seasons and sufficient precipitation to support large trees and diverse animal species

Back 42

temperate deciduous forest

Front 43

found near the equator and characterized by abundant rainfall

Back 43

tropical rain forest

Front 44

hottest and driest biome

Back 44

desert

Front 45

characterized by harsh, long winters with freezing temperatures, snow, ice, and high winds

Back 45

Arctic tundra

Front 46

An animal with a notochord or backbone and an endoskeleton is a _____.

Back 46

vertebrate

Front 47

An organism's function or "occupation" is its ____.

Back 47

niche

Front 48

A biome is identified by its ____ vegetation.

Back 48

climax

Front 49

All ecosystems fall into one of the two general categories, aquatic and ____.

Back 49

terrestrial

Front 50

An _____ species that still exists on Earth today but is in danger of becoming extinct.

Back 50

endangered

Front 51

An ecosystem's ability to withstand and recover from changes is its ____.

Back 51

stability

Front 52

The study of how living things interact with one another and with their physical environment is called ____.

Back 52

ecology

Front 53

The entire period of growth from fertilization to birth ____ period.

Back 53

gestation

Front 54

The ____ zone is home to the coral reef system and supports the commercial ocean-fishing industry.

Back 54

neritic

Front 55

An organisms's environment or home is its _____.

Back 55

habitat

Front 56

Animals with hooves are ____.

Back 56

ungulates

Front 57

Shrews, moles, and hedgehogs are all _____.

Back 57

insectivores

Front 58

Most vertebrates are tetrapods because they have four ____.

Back 58

appendages

Front 59

The ____ are mostly arboreal, noted for their intelligence, and have five fingers and toes with nails instead of claws.

Back 59

primates

Front 60

Gnawing mammals such as mice, beavers, and squirrels are ____.

Back 60

rodents

Front 61

rabbits, hares, pikas are ____.

Back 61

lagomorphs

Front 62

Animals that are attached to a single location but can move the environment toward themselves for the purpose of trapping food are _____.

Back 62

sessile

Front 63

Animals that regulate their body temperature by internal mechanisms and maintain a stable body temperature regardless of their environment are ____.

Back 63

homeothermic

Front 64

Primates without tails are ____.

Back 64

apes