LAB 3

Question 1

Photosynthesis

Answer 1

mechanism by which organisms use CO2 (carbon dioxide) + H2O (water), in the presence of sunlight to make sugars (C6H12O6 = glucose) + O2 (oxygen gas, released)

Question 2

Xylem

Answer 2

conducting tissue in plants, moves water from roots to leaves

Question 3

Phloem

Answer 3

conducting tissue in plants moves sugars and other nutrients from leaves to other parts of plant

Question 4

Cephalization

Answer 4

a concentration of sensory structures in anterior region of the body

Question 5

Radial Symmetry

Answer 5

A body plan in which identical parts are arranged in a circular fashion around a central axis, sea stars

Question 6

Bilateral Symmetry

Answer 6

a body plan where the organism has mirror-image right and left sides

Question 7

Are plants multicellular or unicellular organisms ?

Answer 7

Multicellular

Question 8

Are plants autotrophic or heterotrophic organisms?

Answer 8

autotrophic

Question 9

Are plants prokaryotic or eukaryotic organisms?

Answer 9

Eukaryotic

Question 10

What physical characteristics do you observe that lead you to your answers?

Answer 10

Green in life

Question 11

By what process do plants generate their energy?

Answer 11

Photosynthesis

Question 12

What materials are needed by the plants to perform this (reaction) and the end product of this reaction?

Answer 12

CO2 + H2O and sunlight

C6H12O6 + O2

Question 13

What are the leaves function?

Answer 13

the main photosynthetic structure

Question 14

What is the stems function?

Answer 14

conduction of material

Question 15

What are the roots function?

Answer 15

absorption and anchorage to soil

Question 16

What substance is transported by the xylem?

Answer 16

water

Question 17

From where to where is water being transported?

Answer 17

from roots to leaves

Question 18

What substance is transported by the phloem?

Answer 18

sugar and other substances

Question 19

From where to where is sugar and other substances being transported?

Answer 19

leaves to other locations

Question 20

Function of carpel?

Answer 20

reproductive structure and contains stigma style and ovary

Question 21

Function of stamens?

Answer 21

release sperm-containing pollen

Question 22

Function of ovary?

Answer 22

the part of the pistal that holds the eggs awaiting fertilization and becomes the fruit

Question 23

Why do plants produce flowers?

Answer 23

to attract pollinators

Question 24

When you eat a fruit, what part of the plant are you eating?

Answer 24

ovary

Question 25

When you eat a vegetable, what part(or parts) of the plant are you eating?

Answer 25

leaves, roots, stems, flower

Question 26

What is the function of a fruit(think of what is inside)?

Answer 26

attract a consumer to eat fruit, carry seed away

Question 27

Observe the various seeds displayed in the room, what is the purpose of a seed?

Answer 27

nourishment of embryonic plant, dispersal to new location, dormancy

Question 28

What is the feeding method of sponges?

Answer 28

filter feeder

Question 29

What are commercial uses of the sponges skeleton?

Answer 29

applying make up, cleaning, and bathing

Question 30

What type of body symmetry does the jellyfish display?

Answer 30

radical symmetry

Question 31

How do jellyfish disable their prey?

Answer 31

their sting

Question 32

What is cephalization?

Answer 32

a concentration of sensory structures in the anterior end of the body

Question 33

What type of symmetry is displayed by flatworms?

Answer 33

bilateral

Question 34

Why do tapeworms not need a digestive system?

Answer 34

Live in intestines where food is already digested just need to absorb the nutrient matter across the body surface

Question 35

What are some major illnesses caused by roundworms?

Answer 35

trichinella, ascariasis, and enterobiasis

Question 36

Where does Trichinella live?

Answer 36

in the muscle

Question 37

How can you avoid infection with parasitic roundworms?

Answer 37

by not eating under cooked pork

Question 38

What molluscs are common common food items?

Answer 38

clams, mussels, oysters, and scallops

Question 39

Where can molluscs be found?

Answer 39

on land, in freshwater, or in the ocean

Question 40

How are earthworms beneficial in the soil?

Answer 40

Aerate soil, decompose organic matter and release nutrients plants can use, waste products are a type of fertilizer

Question 41

What are some of the major ecological roles of insects?

Answer 41

disease vectors, food source, decomposers, aerate soil, control insect and plant pests

Question 42

What group of aquatic arthropods include many food items?

Answer 42

crustaceans

Question 43

What is an exoskeleton?

Answer 43

external skeleton

Question 44

Which member of the echinoderms is a prized food item?

Answer 44

sea urchin

Question 45

What are four characteristics of the chordates?

Answer 45

dorsal notochord, dorsal nerve chord, pharyngeal gill slits, and post-anal tail

Question 46

What special feature of the amphibians allows them to inhabit a terrestrial environment( as opposed to fish which are restricted to an aquatic environment)?

Answer 46

their gills

Question 47

What special feature of reptiles allow them to be successful on land?

Answer 47

their lungs

Question 48

What special features of reptiles allow them to be successful on land?

Answer 48

their hard shelled egg, and water tight skin

Question 49

What special feature of the birds assists them in temperature regulation?

Answer 49

homeothermic, feathers for insulation

Question 50

What characteristics of human cause them to be classified as mammals?

Answer 50

mammary glands and fur/hair

Question 51

What segmented worm is used in medicine

Answer 51

leech

Question 52

How are insects important in food production?

Answer 52

can be pollinators, can be pests and destroy crops, certain other insects eat the crop pests thereby helping crops