Question 1

Which is NOT a correct association of scorpion structures and functions?

Accepted Answer

A) Pectines-tactile organs to explore the ground 
B) Spermatophore-a packet of sperm 
C) Chelicerae-large six-jointed pincers 
D) Cephalothorax-bears the appendages 
E) Postabdomen-bears a tail with sting 
A) Pectines-tactile organs to explore the ground 
B) Spermatophore-a packet of sperm 
C) Chelicerae-large six-jointed pincers 
D) Cephalothorax-bears the appendages 
E) Postabdomen-bears a tail with sting

Question 2

The exoskeleton is a "suit of armor" with muscles attached from inside.Yet the exoskeleton must be periodically shed.Describe the layers of the exoskeleton and the process of molting.

Accepted Answer

The exoskeleton, often found in arthropo

Question 3

Reproduction in millipedes is

Accepted Answer

A) external in moist moss or soil. 
B) internal and the young are born live. 
C) internal and the eggs are abandoned under rocks and rotting logs. 
D) internal and eggs are laid in a nest and guarded by the female. 
E) by asexual segmentation. 
A) external in moist moss or soil. 
B) internal and the young are born live. 
C) internal and the eggs are abandoned under rocks and rotting logs. 
D) internal and eggs are laid in a nest and guarded by the female. 
E) by asexual segmentation.

Question 4

Many millipedes defend themselves by secreting toxic or repellant fluids from _________ __________.

Accepted Answer

repugnator

Question 5

What features constitute "arthropodization" and what evidence exists that these features evolved once rather than several times independently?

Accepted Answer

Arthropodization refers to the suite of

Question 6

Tactile organs on the ventral side of scorpions are ________________.

Accepted Answer

The answer of Tactile organs on the ventral side of...

Question 7

The parasitic or micropredatory arachnids belong to the order ________.

Accepted Answer

The answer of The parasitic or micropredatory arachnids belong to...

Question 8

Insects are basically small creatures.How does a small organism retard water loss? Discuss both structural and physiological mechanisms.

Accepted Answer

Insects have evolved various structural

Question 9

Which arachnid has a bite or sting that is neurotoxic and causes paralysis?

Accepted Answer

A) Scorpion 
B) Brown recluse spider 
C) Black widow spider 
D) All arachnids have such a toxin and are dangerous if large enough to bite us 
E) No arachnid has a dangerous neurotoxic bite 
A) Scorpion 
B) Brown recluse spider 
C) Black widow spider 
D) All arachnids have such a toxin and are dangerous if large enough to bite us 
E) No arachnid has a dangerous neurotoxic bite

Question 10

The excretory system of spiders and insects is a structure known as ________ ________.

Accepted Answer

The answer of The excretory system of spiders and insects...

Question 11

Why is the formation of the cuticular exoskeleton with jointed appendages considered central to the success of arthropod diversity?

Accepted Answer

The formation of the cuticular exoskelet

Question 12

Scorpions

Accepted Answer

A) feed during the day. 
B) are most common in the temperate areas of the world. 
C) are docile animals that,in spite of their reputation,cannot harm humans. 
D) are sensitive to surface waves produced by movement on the ground. 
E) All of the choices are correct. 
A) feed during the day. 
B) are most common in the temperate areas of the world. 
C) are docile animals that,in spite of their reputation,cannot harm humans. 
D) are sensitive to surface waves produced by movement on the ground. 
E) All of the choices are correct.

Exam 19: Trilobites, Chelicerates, and Myriapods

Which is NOT a correct association of scorpion structures and functions?

The exoskeleton is a "suit of armor" with muscles attached from inside.Yet the exoskeleton must be periodically shed.Describe the layers of the exoskeleton and the process of molting.

Reproduction in millipedes is

Many millipedes defend themselves by secreting toxic or repellant fluids from _________ __________.

What features constitute "arthropodization" and what evidence exists that these features evolved once rather than several times independently?

Tactile organs on the ventral side of scorpions are ________________.

The parasitic or micropredatory arachnids belong to the order ________.

Insects are basically small creatures.How does a small organism retard water loss? Discuss both structural and physiological mechanisms.

Which arachnid has a bite or sting that is neurotoxic and causes paralysis?

The excretory system of spiders and insects is a structure known as ________ ________.

Why is the formation of the cuticular exoskeleton with jointed appendages considered central to the success of arthropod diversity?

Scorpions

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

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Acoelomorpha, Platyzoa, and Mesozoa

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Smaller Ecdysozoans

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Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

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Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

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Many millipedes defend themselves by secreting toxic or repellant fluids from _ __.

The excretory system of spiders and insects is a structure known as .