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Exam 3 BIO 124 Review

Total questions: 125

Worksheet time: 10hrs 25mins

Name
Class
Date
1.

The hypothesis of animal origins which states that animals are descended from an ancestor which resembled a hollow, spherical colony of flagellated cells is referred to as

a)

the eucoelomate hypothesis.

b)

the multinucleate hypothesis.

c)

the cephalization hypothesis.

d)

the colonial flagellate hypothesis.

e)

the segmentation hypothesis.

2.

From earliest to latest, which is the correct order of the significant innovations in the evolutionary tree of animals?

a)

multicellular, true tissue germ layers, bilateral symmetry, body cavity, eucoelom, segmentation, jointed limbs

b)

multicellular, body cavity, true tissue germ layers, bilateral symmetry, jointed limbs segmentation, eucoelom

c)

body cavity, bilateral symmetry, true tissue germ layers, multicellular, eucoelom, jointed limbs segmentation

d)

true tissue germ layers, multicellular, bilateral symmetry, eucoelom, body cavity, segmentation, jointed limbs

e)

bilateral symmetry, true tissue germ layers, multicellular, body cavity, eucoelom, segmentation, jointed limbs

3.

Animals which have definite right and left halves are said to have

a)

trilateral symmetry.

b)

bilateral symmetry.

c)

radial symmetry.

d)

asymmetry.

e)

spherical symmetry.

4.

A localization of a brain and specialized sensory organs in the anterior end of the animal's "head" is called

a)

homology.

b)

eucoelomate.

c)

cephalization.

d)

bilateral symmetry.

e)

segmentation.

5.

Which statement is least distinctive of the Cnidarians?

a)

They live in salt and fresh water.

b)

They have two body forms: polyp and medusa.

c)

They capture their prey.

d)

They have radial symmetry.

e)

They have a digestive system.

6.

If you were studying animals which have a body cavity completely lined with mesoderm such as molluscs and arthropods, you would be studying

a)

deuterostomes.

b)

pseudocoelomates.

c)

acoelomates.

d)

coelomates.

e)

radial symmetry.

7.

Organisms in which the mouth appears at or near the blastopore are referred to as

a)

protostomes.

b)

deuterostomes.

c)

acoelomates.

d)

pseudocoelomates.

e)

coelomates.

8.

If you were studying animals which have a mantle, visceral mass, and a foot, you would be studying

a)

annelids.

b)

chordates.

c)

echinoderms.

d)

arthropods.

e)

molluscs.

9.

Which statement is true of at least some arthropods other than arachnids?

a)

They have three body parts.

b)

Spiders and scorpions are examples of arachnids.

c)

They have fours pairs of walking legs.

d)

They have no antennae.

e)

Some are parasitic and some are predators.

10.

The major insect body parts are

a)

head, thorax, and abdomen.

b)

cephalothorax and abdomen.

c)

cephalothorax, midsection, and abdomen.

d)

head, pyothorax, and metathorax.

e)

head, cephalothorax, and abdomen.

11.

This figure shows the four chordate characteristics. What does "a" represent?

a)

pharyngeal pouches

b)

dorsal tubular nerve cord

c)

vertebral column

d)

notochord

e)

postanal tail

12.

This figure shows the four chordate characteristics. What does "b" represent?

a)

postanal tail

b)

dorsal tubular nerve cord

c)

vertebral column

d)

notochord

e)

pharyngeal pouches

13.

This figure shows the four chordate characteristics. What does "d" represent?

a)

postanal tail

b)

notochord

c)

dorsal tubular nerve cord

d)

vertebral column

e)

pharyngeal pouches

14.

Tetrapods evolved from which of the following groups?

a)

amphibians

b)

ray-finned fishes

c)

jawless fishes

d)

lobe-finned fishes

e)

cartilaginous fishes

15.

Which animal would be excluded from a study of reptiles?

a)

crocodiles

b)

lizards

c)

snakes

d)

frogs

e)

turtles

16.

The amphibians' unique contribution to the evolution of land vertebrates was

a)

the development of the tail for propulsion.

b)

the leathery waterproof egg shell.

c)

the ability to move onto land.

d)

respiration by gills.

e)

respiration through the skin.

17.

Animals which get their heat from the outside environment are referred to as:

a)

Endothermic

b)

Integuthermic

c)

Ectothermic

d)

Adipothermic

e)

Homeothermic

18.

In order for organisms to maintain homeostasis by reversing a change that has occurred they will use:

a)

Neutral feedback

b)

Positive feedback

c)

A control center to detect the change in the environment.

d)

Almost no energy

e)

Negative feedback

19.

Which of the following tissue type forms the external lining of organs?

a)

Cardiovascular

b)

Epithelial

c)

Skeletal

d)

Nervous

e)

Connective

20.

The kidneys are at what level of biological organization?

a)

Organism

b)

Organ system

c)

Organ

d)

Cellular

e)

Tissue

21.

If you were studying several organs working together to perform a particular function, you would be studying:

a)

A cell system

b)

A metabolic system

c)

An organ system

d)

A tissue system

e)

An organism system

22.

This figure shows the levels of biological organization. What does "b" represent?

a)

An organ system

b)

A cell

c)

An organ

d)

A tissue

e)

An organism

23.

This figure shows the levels of biological organization. What does "e" represent?

a)

An organ system

b)

A cell

c)

An organ

d)

A tissue

e)

An organism

24.

If you were a biologist studying connective tissue, which of the following types of tissue would you not be interested in studying?

a)

Adipose

b)

Cuboidal

c)

Cartilage

d)

Bone

e)

Blood

25.

Muscles are connected to bones by:

a)

Epithelial tissue

b)

A basement membrane

c)

Ligaments

d)

Tendons

e)

Nerve tissue

26.

Which of the following would be considered a type of loose connective tissue?

a)

Cartilage

b)

Adipose

c)

Tendons

d)

Ligaments

e)

Bone

27.

Which type of muscle is unstriated and involuntary?

a)

Skeletal

b)

Cartilage

c)

Intercalated

d)

Cardiac

e)

Smooth

28.

Which is the extension of a neuron that conducts signals toward the cell body?

a)

Myelin

b)

Nucleus

c)

Axon

d)

Dendrite

e)

Intercalated disk

29.

The system which is responsible for collecting extra fluid from the tissues and returning it to the cardiovascular system is the:

a)

Reproductive system

b)

Urinary system

c)

Respiratory system

d)

Lymphatic system

e)

Digestive system

30.

Which of the following is an example of homeostasis?

a)

There is more red blood cells than white blood cells

b)

Muscular tissue that is specialized to contract

c)

An organism is limited in how high it can jump

d)

The human body temperature is always maintained close to 37° C (98.6° F)

e)

Tendons connect muscle to bone

31.

Which of the following is not associated with a bulk feeder?

a)

Biting off chunks of food

b)

Swallowing prey whole

c)

Human feeding strategy

d)

Sifting small particles out of water

e)

Eating discontinuously

32.

This figure shows the phases of digestion. What does "A" represent?

a)

Elimination

b)

Absorption

c)

Defecation

d)

Ingestion

33.

This figure shows the phases of digestion. What does "C" represent?

a)

Absorption

b)

Ingestion

c)

Defecation

d)

Elimination

e)

Digestion

34.

Organisms which are parasites are described as ________ feeders.

a)

Suspension

b)

Bulk

c)

Substrate

d)

Filter

e)

Fluid

35.

If you were examining an organism that has a gizzard which serves as an area for mechanical digestion of food you would be studying which of the following?

a)

A bird

b)

A rabbit

c)

A cow

d)

A flatworm

e)

A fox

36.

The main function of the esophagus is to:

a)

Transport food from the mouth to the stomach

b)

Transport food from the small intestine to the large intestine

c)

Digest carbohydrates

d)

Transport food from the stomach to the small intestine

37.

Muscles that encircle tubes and act as valves are called:

a)

Dilators

b)

Sphincters

c)

Lacteals

d)

Constrictors

e)

Mucosa

38.

What substance protects the stomach lining from the acidic nature of the HCl acid in the stomach?

a)

Antacids

b)

Bacteria

c)

Pepsinogen

d)

Pepsin

e)

Mucus

39.

The main function of bile is:

a)

To kill bacteria

b)

Helps break down starch

c)

Emulsify fats

d)

Neutralize stomach acid

e)

Aids in the absorption of glucose

40.

Name the structure and organ that has microvilli and absorbs nutrients:

a)

Folds, large intestine

b)

Villus, large intestine

c)

Villus, stomach

d)

Folds, stomach

e)

Villus, small intestine

41.

If you were studying the molecules where most of the cells get their energy from, you would be studying which of the following?

a)

Sugars and starches

b)

Fats

c)

Nucleic acids

d)

Minerals and vitamins

e)

Proteins

42.

Water is absorbed primarily by the:

a)

Colon

b)

Stomach

c)

Esophagus

d)

Anal canal

e)

Duodenum

43.

What physical process must take place in order for gas exchange to occur during respiration?

a)

Fermentation

b)

Diffusion

c)

Cellular respiration

d)

Osmosis

e)

None of these are necessary in order for gas exchange to take place.

44.

The gas exchange between air and the blood within the lungs is referred to as:

a)

Pulmonary respiration

b)

External respiration

c)

Ventilation

d)

Cellular respiration

e)

Internal respiration

45.

If you were studying the gas exchange between blood and the tissue fluid you would be studying which of the following?

a)

Internal respiration

b)

Ventilation

c)

External respiration

d)

Cellular respiration

e)

Pulmonary respiration

46.

Which feature is not necessary in order for external respiration to be effective?

a)

A large surface area in relation to the body size.

b)

A moist surface area.

c)

A surface area that is external to the body.

d)

A thin surface area.

e)

A surface area that is vascular.

47.

Ventilation in insects involves _______ that can expand to draw air inside the animal.

a)

Gills

b)

Air sacs

c)

Tracheoles

d)

Lungs

e)

Tracheae

48.

A biologist is counting the small holes on an insect's body which allow air to enter its respiratory system. Based on this information you would conclude that he or she is counting which of the following?

a)

Spiracles

b)

Tracheae

c)

Tracheoles

d)

Alveoli

e)

Air sacs

49.

Trace the path of inhaled air molecules.

a)

Nasal cavity, pharynx, glottis, larynx, trachea, bronchioles, bronchi, alveoli

b)

Nasal cavity, glottis, larynx, trachea, pharynx, bronchi, bronchioles, alveoli

c)

Nasal cavity, pharynx, larynx, glottis, trachea, bronchi, bronchioles, alveoli

d)

Nasal cavity, pharynx, glottis, trachea, larynx, bronchi, bronchioles, alveoli

e)

Nasal cavity, pharynx, glottis, larynx, trachea, bronchi, bronchioles, alveoli

50.

When we eat dinner, what structure prevents food from entering the respiratory system instead of the digestive system?

a)

Epiglottis

b)

Alveoli

c)

Glottis

d)

Larynx

e)

Pharynx

51.

A biologist is studying organisms that have a one-way ventilation mechanism. Based on this information you would conclude that he or she is studying:

a)

Amphibians

b)

Mammals

c)

Reptiles

d)

Birds

e)

Earthworms

52.

Expired air will contain ________ than inspired air.

a)

Less oxygen and less carbon dioxide

b)

More oxygen but less carbon dioxide

c)

More oxygen and more carbon dioxide

d)

The same amount of oxygen and carbon dioxide

e)

Less oxygen but more carbon dioxide

53.

During countercurrent flow which direction does water and the blood flow?

a)

Water flows out of the gills while blood flows in the opposite direction

b)

Water flows across the surface of the lungs while blood flows in the opposite direction

c)

Water flows in through the gills while blood flows in the opposite direction

d)

Water flows inward across the gills while blood flows in the same direction

e)

Water flows out of the gills while blood flows in the same direction

54.

The production of which waste product requires the greatest amount of energy?

a)

Urea

b)

Ammonia

c)

Urea and ammonia are equal

d)

Urea, ammonia, and uric acid all require the same amount of energy.

e)

Uric acid

55.

Which metabolic waste requires the greatest amount of water to excrete?

a)

Uric acid, urea, and ammonia all require the same amount of water to excrete.

b)

Uric acid, urea, and ammonia do not require any water to excrete.

c)

Ammonia

d)

Urea

e)

Uric acid

56.

If you were studying organisms which have flame cells you would be studying which of the following?

a)

Planarians

b)

Insects

c)

Sharks

d)

Earthworms

e)

Fish

57.

The functional unit of excretion found in the kidneys is the:

a)

Alveoli

b)

Glomerulus

c)

Microvilli

d)

Bowman capsule

e)

Nephron

58.

The hormone which is responsible for the reabsorption of water is:

a)

Angiotensin I

b)

Antidiuretic hormone

c)

Angiotensin II

d)

Aldosterone

e)

Renin

59.

Which hormone from the adrenal cortex will cause the distal convoluted tubules to reabsorb more sodium ions?

a)

Aldosterone

b)

Angiotensin II

c)

Renin

d)

Antidiuretic hormone

e)

Angiosinogen

60.

Which body system coordinates activities of body parts by releasing hormones into the blood?

a)

The circulatory system

b)

The nervous system

c)

The respiratory system

d)

The endocrine system

e)

The digestive system

61.

Which of the following is not true about hormones?

a)

Hormones are secreted into the bloodstream

b)

Hormones have a slower effect than that mediated by the nervous system

c)

Hormones bind to receptor sites at a target cell

d)

Hormones are made by glands that have ducts

e)

Hormones may be used at a far distance from where the hormone is made

62.

If you were studying hormones which never enter the cell and are commonly called the first messengers, you would be studying which of the following?

a)

Steroid hormones

b)

Peptide hormones

c)

DNA hormones

d)

RNA hormones

e)

Lipid hormones

63.

A biologist is studying hormones which enter the cell or nucleus where they bind to receptors. Based on this information you would conclude that he or she is studying which of the following?

a)

RNA hormones

b)

DNA hormones

c)

Steroid hormones

d)

Lipid hormones

e)

Peptide hormones

64.

Which two body systems will growth hormone have the biggest influence on?

a)

Skeletal and muscular

b)

Endocrine and digestive

c)

Muscle and reproductive

d)

Skeletal and nervous

e)

Muscular and reproductive

65.

A woman is considered pregnant when:

a)

The developing embryo implants itself in the endometrial lining

b)

The fertilized egg implants in the ovary

c)

The sperm and egg combine

d)

Sperm are in the vagina

e)

Sperm are in the uterus

66.

The ________ develops into the fetal portion of the placenta.

a)

Archenteron

b)

Allantois

c)

Yolk sac

d)

Chorion

e)

Amnion

67.

During development, which of the following describes the correct sequence?

a)

Growth, morphogenesis, differentiation

b)

Morphogenesis, differentiation, growth

c)

Differentiation, growth, morphogenesis

d)

Differentiation, morphogenesis, growth

e)

Growth, differentiation, morphogenesis

68.

Which of the following is the correct order of cellular development?

a)

Blastula - gastrula - zygote - morula

b)

Gastrula - zygote - morula - blastula

c)

Zygote - morula - blastula - gastrula

d)

Morula - blastula - gastrula - zygote

e)

Zygote - morula - gastrula - blastula

69.

Which hormone stimulates and maintains the secondary sexual characteristics in males at puberty?

a)

GnRH

b)

Estrogen

c)

LH

d)

Testosterone

e)

FSH

70.

Which issue do organisms who reproduce on land have to deal with that organisms who reproduce in water do not?

a)

Difficulty in finding a mate

b)

Predators that will eat the young

c)

The egg can dry out

d)

Finding enough food for the offspring to survive

e)

Finding suitable habitat for reproduction

71.

Which structure is not found among animals that reproduce on land?

a)

Penis

b)

Extra embryonic membranes

c)

Egg shell

d)

Yolk

e)

All of theses can be found in animals that reproduce on land

72.
Gas exchange in amphibians occurs in which of the following structures?
a)
Gills
b)
Lungs
c)
Skin
d)
All of these
73.
Which of the following is NOT a characteristics of all mammals?
a)
Hair of some kind
b)
Mammary Glands
c)
Specialized Teeth
d)
Lay Eggs
74.
Nematocysts or cnidocytes are used for
a)
defense
b)
reproduction
c)
excretion
d)
circulation
75.
A water-vascular system is characteristic of the phylum
a)
Echinodermata
b)
Annelida
c)
Mollusca
d)
Arthropoda
76.
layer of cells lining the inner surface of the gastrula
a)
endoderm
b)
mesoderm
c)
coelom
d)
ectoderm
77.
layer of cells lining the outer surface of the gastrula
a)
ectoderm
b)
endoderm
c)
coelom
d)
mesoderm
78.
body plan of an organism that can be divided down its length into right and left halves that form mirror images
a)
bilateral symmetry
b)
radial symmetry
c)
sessile
d)
asymmetry
79.

Which of the following consist of a hollow ball of cells

a)

Embryo

b)

Morula

c)

Blastula

80.

Animal with a mouth that does NOT develop from the opening in the gastrula.

a)

deuterostome

b)

protostome

c)

insect

d)

snail

81.

Fertilization that takes place inside the female organism's body is ___________.

a)

internal fertilization

b)

gestation period

c)

external fertilization

d)

asexual reproduction

82.

What is one benefit of having an amniotic egg?

a)

Their egg does not require oxygen

b)

their can have external fertilization

c)

their eggs are protected by jacobson's organs

d)

they do not have to return to the water to reproduce

83.

Which of the following definitions do not match the system next to it?

a)

Endocrine System — The bodily system that consists of the endocrine glands and the hormones that they secrete.

b)

Lymphatic System - Immune Response

c)

Muscular System - The framework of the body.

d)

Nervous System - the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia.

84.

Select all of the organs associated with the Urinary System

a)

Kidneys

b)

Urethra

c)

Uterus

d)

Uterine Tube

e)

Ureter

85.

Which of the following is an example of negative feedback?

a)

After a meal, blood sugar levels in the body rise; insulin is secreted to lower blood sugar levels.

b)

The onset of contractions during childbirth stimulates the release of a hormone that stimulates further contractions.

c)

A person who loses 3 pounds continues to diet to lose an additional 10 pounds

d)

The arrival of platelets at a wound site stimulates the recruitment of more platelets to form a clot.

86.

The giant squid is a large, very active invertebrate. What type of circulatory system do you think it has?

a)

closed circulatory system

b)

no circulatory system

c)

open circulatory system

d)

water vascular system

87.

In a frog, the structure through which digestive wastes, urine, and reproductive cells leave the body is called the

a)

anus

b)

colon

c)

cloaca

d)

coelom

88.

Cardiac muscle is considered a:

a)

Nonstriated involuntary muscle

b)

Striated involuntary muscle

c)

Nonstriated voluntary muscle

d)

Striated voluntary muscle

89.

Smooth muscles can be found in the:

a)

Heart

b)

Stomach

c)

Pelvic limb

d)

Diaphragm

90.

The hormone produced by a developing ovarian follicle is:

a)

Estrogen

b)

Progesterone

c)

Prolactin

d)

Oxytocin

91.

Efferent neurons are part of what system?

a)

Motor

b)

Interneuron

c)

Sensory

d)

Extraneuron

92.

Afferent neurons are part of what system?

a)

Motor

b)

Interneuron

c)

Sensory

d)

Extraneuron

93.

The function of the red blood cell is to:

a)

Provide defense from foreign invaders

b)

Act as a phagocyte

c)

Carry oxygen to the tissues

d)

Respond to the need for clotting

94.

Which structure connects the Brain to the Peripheral Nervous System, while also directing some of the body's reflexes?

a)

Spinal Cord

b)

Esophagus

c)

Pharynx

d)

Larynx

e)

Trachea

95.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
96.

In order to breathe in, pressure must __ in the thoracic cavity.

a)

increase

b)

decrease

c)

stay the same

97.
What function do the kidneys perform?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
play a role in gas exchange
98.

Which of the following is NOT a function of saliva?

a)

lubrication of food

b)

initial digestion of carbohydrates

c)

lubrication of the mouth

d)

initial digestion of proteins

99.

Gastric juices in the stomach:

a)

kill bacteria.

b)

work together to digest food.

c)

include hydrochloric acid.

d)

All of the above.

100.

What function does the basement membrane serve?

a)

provide blood to the epithelial tissue

b)

hold cartilage to bone

c)

anchor epithelial tissues to underlying connective tissue

d)

secretes the matrix.

101.

What is another name for the hypodermis, which is the deepest layer of the skin?

a)

epidermis

b)

subcutaneous layer

c)

stratum basale

102.
a)

Dendrites

b)

Axon Terminals

c)

Myelin Sheath

d)

Schwann Cells

103.
a)

Nucleus

b)

Cell Body

c)

Axon

d)

Node of Ranvier

104.
The Gallbladder is an organ that?
a)
Stores bile
b)
Produce bile
c)
Creates enzymes
105.
Which structure reduces friction between bones?
a)
cartilage
b)
tendons
c)
muscles
d)
bone marrow
106.
Cartilaginous organ containing the vocal cords, located between the trachea and pharynx, also called the voice box.
a)
glottis
b)
trachea
c)
larynx
d)
pharynx
107.
majority of nutrients are absorbed here
a)
Small Intestine
b)
Stomach
c)
Pancreas
d)
Esophagus
108.

What is an endothermic animal?

a)

an animal that has the ability to maintain their own body temperature

b)

animals that have the ability to produce milk and give birth to live young

c)

animals that have gills to breathe

d)

animals that exhibit a notochord

109.

Which system can be defined as all forms of tissue in the body that can contract to perform movement or similar functions?

a)

muscular

b)

integumentary

c)

respiratory

d)

skeletal

110.

Which of the following is the liquid in the circulatory system?

a)

blood

b)

water

c)

saliva

d)

sweat

111.

If an individual’s blood analysis reveals a higher number of white cells then what could this indicate?

a)

The liver is overacting

b)

The body is in normal condition

c)

The body is fighting an infection

d)

The body requires an additional amount of iron

112.

How do the circulatory and excretory systems work together?

a)

The circulatory system brings nutrients and oxygen so our cells can produce energy.

b)

The circulatory system brings blood to the kidneys to filter and remove waste.

c)

The circulatory system bring white blood cells around the body to fight infection and disease.

d)

The circulatory system helps the excretory system digest food.

113.
Question Image

Match the body systems with their functions

a)

Brings oxygen to the body and moves carbon dioxide out of the body

1.

Respiratory system

b)

Produces hormones that help regulate the other systems of the body

2.

Endocrine system

c)

Filters the blood and eliminates waste from the body

3.

Excretory system

d)

Helps the body control and communicate

4.

Nervous system

114.
Question Image

Match the body systems with their functions

a)

Supports the body, protects the organs

1.

Skeletal system

b)

Responsible for movement

2.

Muscular System

c)

Delivers oxygen and nutrients throughout the body.

3.

Cardiovascular System

d)

Changes food into nutrients and energy for the body

4.

Digestive System

115.

What is the main product of the endocrine system?

a)

Bones

b)

Blood

c)

White blood cells

d)

Hormones

116.

What type of feedback loop is represented here?

a)

Positive

b)

Negative

117.

Give an example of an animal with radial symmetry.

a)

jellyfish

b)

butterfly

c)

elephant

d)

starfish

118.

Name the three germ layers in tissue organization.

a)

ectoderm, mesoderm, and endoderm

b)

epidermis, dermis, and hypodermis

c)

protoplasm, cytoplasm, and nucleoplasm

d)

epithelium, connective tissue, and muscle tissue

119.

Explain the role of germ layers in tissue organization.

a)

Germ layers only give rise to organs, not tissues.

b)

Germ layers have no role in tissue organization.

c)

Tissue organization is not influenced by germ layers.

d)

Germ layers play a crucial role in tissue organization by giving rise to different types of tissues and organs in the body.

120.

Type of circulation that refers to blood flow from the heart to the lungs and back to the heart again?

a)

Systemic circulation

b)

Renal circulation

c)

Portal circulation

d)

Pulmonary circulation

121.

Type of circulation that refers to the blood flowing through the entire body?

a)

Systemic circulation

b)

Renal circulation

c)

Portal circulation

d)

Pulmonary circulation

122.

The type of blood vessel where exchange of gases, nutrients, and wastes occurs?

a)

arteries

b)

capillaries

c)

veins

123.

What is meant by an OPEN CIRCULATORY SYSTEM?

a)

Does not have blood vessel

b)

Have blood vessels

c)

Contain haemolymph

d)

Contain blood

124.

As organisms get more complex, cells become specialized to perform specific functions in the body. What is the function for the cell shown?

a)

contract and shorten movement

b)

provide coverage and protection

c)

carry impulses around the body

d)

connects parts together

125.
What do neuroglia do?
a)
Release neurotransmitters
b)
Support and nourish neurons
c)
Release calcium to activate neurons
d)
Absorb nutrients from neurons

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