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Marine Biology- sponges, microbes, algae

Total questions: 77

Worksheet time: 45mins

Name
Class
Date
1.

During a biology class, students were discussing the major domains of life. One student mistakenly mentioned a group that is not considered a domain of life. Which of the following is NOT a domain of life?

a)

Plantae

b)

Eukarya

c)

Archaea

d)

Bacteria

2.

In a biology class, students are asked to classify a newly discovered species. Of the following, which classification level is the least specific?

a)

Phylum

b)

Family

c)

Order

d)

Class

3.

Imagine you are studying two types of cells under a microscope. One is from an animal tissue, and the other is from a bacterial culture. What key difference would you observe?

a)

The cell from animal tissue has a nucleus; the cell from bacterial culture does not

b)

The cell from bacterial culture has a nucleus; the cell from animal tissue does not

c)

The cell from bacterial culture does not have DNA; the cell from animal tissue does

d)

The cell from animal tissue does not have DNA; the cell from bacterial culture does

4.

Imagine you're a scientist studying microscopic organisms. You're comparing bacteria and viruses, noting they can both cause diseases. What is the ONE big difference between them?

a)

Bacteria can reproduce by themselves; viruses cannot

b)

Viruses can reproduce by themselves; bacteria cannot

c)

Bacteria have a nucleus; viruses do not

d)

Viruses have a nucleus; bacteria do not

5.

Imagine you're exploring a hot spring and you find microorganisms thriving in the boiling water. What type of organisms are these likely to be?

a)

Archaeans known as 'extremophiles' because they can live in extreme environments like a hot spring.

b)

Common bacteria that are capable of causing extreme illnesses in their hosts.

c)

Ordinary plants that cannot survive in extreme environments like a hot spring.

d)

Adventurous animals that do extreme things like bungee jumping.

6.

What are the calcareous mounds formed by cyanobacteria called?

a)

Stromatolites

b)

Plankton

c)

Algae

d)

Diatoms

7.

What could lead to an algal bloom in a coastal town's water supply?

a)

High nutrient levels from agricultural runoff

b)

Heavy metal pollution from industrial waste

c)

Too many whales migrating close to the shore

d)

Low nutrient levels due to strict environmental regulations

8.

Which part of a seaweed thallus is the site for photosynthesis?

a)

Blade

b)

Leaf

c)

Stipe

d)

Pneumatocyst

9.

During a coastal cleanup, a group of environmentalists discuss the characteristics of seaweed compared to terrestrial plants. Which of the following is NOT a difference they might note?

a)

Role as a primary producer

b)

Presence of roots

c)

Presence of pneumatocysts

d)

Presence of leaves

10.

The holdfast of a seaweed

a)

Only anchors the seaweed to the floor

b)

Is the exact same as the root of a plant

c)

Extracts nutrients from the sea floor

d)

Extracts water from the sea floor

11.

During a marine biology lesson, students learn about the largest and most structurally complex seaweeds. Which type of seaweed is being described?

a)

Brown

b)

Green

c)

Red

d)

Blue

12.

Which type of brown algae is found in warm waters and is used to clean industrial waste?

a)

Sargassum

b)

Kelp

c)

Seagrass

d)

Spiral rockweed

13.

Phycocolloids are chemicals found in many seaweeds that are often used in human-made products to enhance creaminess. Which of the following is NOT a product containing one of these phycocolloid chemicals?

a)

Chicken broth

b)

Pudding

c)

Ice cream

d)

Toothpaste

14.

Where are you most likely to find a marine flowering plant?

a)

Near the coast

b)

In the deep sea

c)

Floating in the open ocean

d)

Around mid-ocean ridges

15.

During a marine biology expedition, researchers discovered a unique type of sponge on the ocean floor. They are curious to know, in which phylum do these glass sponges belong?

a)

Porifera

b)

Animalia

c)

Calcarea

d)

Eukarya

16.

Which sponge body type is the least complex and efficient?

a)

Asconoid

b)

Osculoid

c)

Syconoid

d)

Leuconoid

17.

What type of sponge cell is responsible for trapping/ingesting food particles?

a)

choanocyte

b)

archaeocyte

c)

porocyte

d)

pinacocyte

18.

What function do spicules provide?

a)

structure

b)

trap food

c)

water flow

d)

temperature regulation

19.

Look at the image. Which part allows water to flow out of the sponge?

a)

spongocoel

b)

pinacoderm

c)

spicules

d)

osculum

20.

While examining a sponge under the microscope, you notice certain cells highlighted in red. What are these cells called?

a)

Choanocytes

b)

Pinacocytes

c)

Porocytes

d)

Ostia

21.

Which class of sponges are ONLY marine and have spicules made of calcium carbonate?

a)

Calcarea

b)

Hexactinellida

c)

Demospongiae

22.

Why are sponges important to our marine ecosystem?

a)

They provide a habitat for fish

b)

They eat toxic fish

c)

They perform photosynthesis

23.

In the vast ocean, creatures known as sponges belong to the domain __________.

a)

eukarya

b)

bacteria

c)

plantae

d)

porifera

24.

During a marine biology lesson, students learn that sponges are classified in the kingdom __________.

a)

eukarya

b)

animalia

c)

plantae

d)

porifera

25.

Sponges are found in the phylum __________,

a)

eukarya

b)

animalia

c)

plantae

d)

porifera

26.

Imagine you are studying marine life and come across a creature attached to a rock. Which of these characteristics would indicate it's not a sponge?

a)

sessile

b)

bilateral symmetry

c)

multicellular

d)

composed of 2 layers

27.

During a marine biology expedition, researchers are studying the feeding mechanisms of sponges in their natural habitat. Which parts or cells are involved in sponge nutrition? (mark all that apply)

a)

choanocytes

b)

amoebocytes

c)

porocytes

d)

pinacocytes

e)

spongocoel

28.

Sponges reproduce only sexually.

a)

True

b)

False

29.

Match the class of sponge to its description: Calcarea

a)

small, calcium carbonate spicules, marine, shallow water, vase shaped

b)

6 rayed silicon spicules & are marine, glass sponge, polar water

c)

silicon spicules or spongin, marine & freshwater species, all are leuconoid

30.

Match the class of sponge to its description: Hexactinellida

a)

small, calcium carbonate spicules, marine, shallow water, vase shaped

b)

6 rayed silicon spicules & are marine, glass sponge, polar water

c)

silicon spicules or spongin, marine & freshwater species, all are leuconoid

31.

Identify the characteristics of the Demospongiae class found in a marine biology study:

a)

small, calcium carbonate spicules, marine, shallow water, vase shaped

b)

6 rayed silicon spicules & are marine, glass sponge, polar water

c)

silicon spicules or spongin, marine & freshwater species, all are leuconoid

32.

Marine microbes that photosynthesize and provide energy to the food web are called:

a)

photospores

b)

primary producers

c)

endospores

d)

bateriophages

33.

In a remote alien planet, the newly discovered microscopic life forms, similar to Earth's prokaryotes, do not have

a)

DNA

b)

cell walls

c)

membrane bound organelles

d)

ribosomes

34.

Diatoms have a two part cell wall (frustule) made of

a)

cellulose

b)

silica

c)

lipids

d)

glucose

35.

These are the most important temperate and polar open-water primary producers

a)

diatoms

b)

dinoflagellates

c)

cyanobacteria

d)

kelp

36.

When observing the ocean's microscopic life, one might find organisms with cell walls made of plates composed of

a)

cellulose

b)

silica

c)

lipids

d)

protein

37.

Protozoans obtain energy from

a)

photosynthesis

b)

ingesting food particles

c)

photosynthesis and ingesting food particles

d)

chemosynthesis

38.

Red tides can be toxic because of a toxin released by these unicellular protists

a)

diatoms

b)

dinoflagellates

c)

protozoans

d)

all answers are correct

39.

What Kingdom do seaweeds (multicellular algae) belong?

a)

Plantae

b)

Protista

c)

Animalia

d)

Fungi

40.

What do seaweeds such as giant kelp provide beyond being a food source (primary producer)?

a)

they protect coral reefs

b)

they take salt out of the water

c)

they create a habitat for many organisms

41.

This gelatinous type of chemical from seaweeds is used in food processing and the manufacturing of many goods:

a)

chlorophyll

b)

carotenoid

c)

phycobilin

d)

phycocolloid

42.

In a typical garden, flowering plants have

a)

true leaves

b)

transport tissue (xylem and phloem)

c)

roots

d)

all answers are correct

43.

Mangroves trees produce

a)

broad-shaped seedlings to drift away on currents

b)

pencil-shaped seedlings to stick in the mud

c)

parachute-seedlings to drift on coastal winds

44.

Most sponges are ________________, but some live in freshwater.

a)

marine

b)

yellow

c)

square

d)

good cooks

45.

As adults sponges are _____________, meaning they remain in one place.

a)

wrinkly

b)

slow

c)

sessile

46.

Sponges get food by ________________________.

a)

filter-feeding

b)

hunting

c)

going to the Crusty Crab

47.

What type of symmetry do sponges (Porifera) have?

a)

asymmetrical

b)

radial

c)

bilateral

d)

medial

48.

Do sponges have an organ system?

a)

no

b)

yes

49.

I have no mouth but many pores and am asymmetric. I don't move very much but I am a marine animal.

a)

I am an arthropod

b)

I am a mollusk

c)

I am a sponge

d)

I am a cnidarian

50.
Sponges use pores to 
a)
move from place to place.
b)
filter food from the water.
c)
defend themselves.
d)
clean themselves
51.

How do Sponges interact with organisms around them?

a)

Sponges provide shelter for algae, shrimp, and crabs.

b)

sponges are heterotrophic and hunt fish around them.

c)

Sponges decompose organic materials in the coral.

d)

Sponges are sessile and do not interact with organisms in the environment.

52.
What phylum of invertebrates does the following picture belong?
a)
Platyhelminthes
b)
Cnidaria
c)
Porifera
d)
Mollusca
53.
What type of sponge does the following diagram belong?
a)
Leuconoid sponge
b)
Syconoid sponge
c)
Asconoid sponge
d)
Sponge Bob type
54.
The structure of a sponge that attaches to the rocks and other substrate is called a/an ________________________?
a)
holdfast
b)
false foot
c)
root
d)
spicule
55.
Sponges can reproduce asexually through a process called __________________.
a)
budding
b)
regeneration only
c)
fusion
d)
amphiblastula
56.
A flexible, fibrous material that can make up the skeleton of a sponge?
a)
spicule
b)
spongin
c)
grass sponge
d)
spongocoel
57.
What is an invertebrate?
a)
An animal with a backbone
b)
a mammal
c)
An animal without a backbone
d)
birds
58.

The small openings all over a sponge are...

a)

Collar cells

b)

Flagella

c)

Osculum

d)

Pores

59.

A sponge is a very simple _____________________.

a)

vertibrate

b)

invertebrate

60.

Because they do not have heads, arms, legs, internal organs or even brains sponges are the ________________________ of all animals.

a)

complicated

b)

simplest

c)

remarkable

d)

largest

61.

What is a defense that some sponges have?

a)

Venom

b)

Some have spines (spikes)

c)

They attach to the host and eat them

d)

They can float away from predators

62.

the stem-like portion of then of seaweeds

a)

thallus

b)

blade

c)

stipe

d)

pneumatocyst

e)

holdfast

63.

body of seaweed

a)

stipe

b)

macroalgae

c)

thallus

d)

blade

64.

How are seaweed classified or sorted in to groups?

a)

By their pigment

b)

By their length

c)

By the water they are found in

d)

By their toxins

65.

Which products contains seaweed?

a)

cosmetics

b)

dairy products - icecream, processed cheeses, yogurts

c)

fertilizers

d)

toothpaste, shampoos, etc.

e)

All of these

66.

green pigment

a)

fucoxanthin

b)

chlorophyll

c)

carotenoids

d)

phycoblins

67.
Largest of the algae. The_______ grows to up to _______.
a)
bull kelp, 6'
b)
sea lettuce, 100'
c)
giant kelp, 300'
d)
Japanese kelp, 6'
68.

Algae are similar to plants, yet they don't have _____

a)

Roots

b)

Flowers and Fruits

c)

Stem

d)

Leaves

69.

Is seaweed a type of algae?

a)

Yes

b)

No

70.

Mode of Nutrition in Algae is

a)

Heterotrophic

b)

Autotrophic

c)

Both Autotrophic and Heterotrophic

d)

None

71.

What phylum does brown algae belong to?

a)

rhodophyta

b)

chlorophyta

c)

phaeophyta

d)

fucucillin

72.

What phylum does green algae belong to?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

73.

Scientific name?

a)

Egregia menziesii

b)

Fucus spiralis

c)

Ulva

d)

Nereocystis luetkeana

74.

Allows the leaf-structures of the seaweed to float

a)

Blade

b)

Holdfast

c)

Bulb / Gas Bladder / Pneumatocyst

d)

Stipe

75.

Which group of algae contains the larges species of seaweed, including kelp and sargasso?

a)

red algae

b)

green algae

c)

purple algae

d)

brown algae

76.

Red Algae belong to which phylum?

a)

Rhodophyta

b)

Chrysophyta

c)

Euglenophyta

d)

Chlorophyta

77.

Red Algae are contains a jelly-like substance which is used as a medium to grow bacteria for research purposes.

a)

Algin

b)

Sap

c)

Agar

d)

Grime

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