Aquarium and Stingrays

Question 1

Mangrove thickets form important nurseries for marine fish and invertebrates.

True or False

Answer 1

True

Question 2

Nocturnal fishes tend to have the following characteristics:

a. Large eyes, more solitary, red or yellowish-brown, well developed lateral line.
b. Large eyes, more solitary, blue or blackish, well developed lateral line.
c. Small eyes, gregarious, red or yellowhis brown, well developed lateral line.
d. Large eyes, more solitary, red or yellowish brown, poorly developed lateral line.

Answer 2

a. Large eyes, more solitary, red or yellowish-brown, well developed lateral line.

Question 3

The “pharyngeal jaws” of moray ells may have been an inspiration for Ridley Scot’s “Alien”.

True or False

Answer 3

True

Question 4

What percentage of the total area of the Sonoran Desert is the Sea of Cortez?

Answer 4

50%

Question 5

The Vaquita is the rarest and most endangered marine mammal in the world.

True or False

Answer 5

True

Question 6

Vaquita means “little sheep”.

True or False

Answer 6

False

Question 7

It is the male seahorse who appears to “give birth” to the young.

True or False

Answer 7

True

Question 8

Rather than encouage people to get live seahorses for their home aquarium, we suggest they purchase dried seahorses at shell shops.

True or False

Answer 8

False

Question 9

A single pound of shrimp may cause up to 80 pounds of bycatch to be netted, much of which is discarded.

True or False

Answer 9

True

Question 10

Our stingrays are _________,

Answer 10

Cownose Rays

Question 11

A fish is generally an animal with the following characteristics:

a. Vertebrate, ectothermic, breathes with lungs, lives in water, pared fins, body covered in scales.
b. Vertebrate, endothermic, breathes with gills, lives in water, paired fins, skin smooth and slimy.
c. Vertebrate, ectothermic, breathes with gills, lives in water, paired fins, body covered in scales.
d. Invertebrate, ectothermic, breathes with gills, lives in water, paired fins, body covered in scales.

Answer 11

c. Vertebrate, ectothermic, breathes with gills, lives in water, paired fins, body covered in scales.

Question 12

There are exceptions: From the list below, chose the fish that:

__ Lives partially on land

__ Is endothermic (“warm-blooded”)

__ Lacks paried fins or body scales

__ Breathes using lungs

1. Tuna
2. Lungfish
3. Mudskipper
4. Lamprey

Answer 12

Mudskipper (3) Lives partially on land

Tuna (1) Is endothermic (“warm-blooded”)

Lamprey (4) Lacks paried fins or body scales

Lungfish (2) Breathes using lungs

Question 13

Chondrichthys means “cartilage-fish” and refers to the group that contains sharks, skates, and rays.

True or False

Answer 13

True

Question 14

Fishes make up what percentage of all known vertebrate animals?

Answer 14

50%

Question 15

A “stingray” is any member of the order Myliobatiformes that posseses onne or more serrated barbs made for the delivery of a painful venom.

True or False

Answer 15

True

Question 16

Some species of stingrays use their barbs to attack and kill prey.

True or False

Answer 16

False

Question 17

The hammerhead shark is a major predator of rays in the Gulf of California.

True or False

Answer 17

True

Question 18

We have a hammerhead shark here at the Museum, in the Warden Aquarium.

True or False

Answer 18

True

Question 19

We say that there are “about” ___ kinds of rays in the Sea of Cortez.

Answer 19

40

Question 20

Cownose rays have how many young in a typical litter?

Answer 20

One, occasionally two.

Question 21

Our Rays were born in captivity at which institution?

Answer 21

Phoenix Zoo

Question 22

As a docent, it’s more important for me to know the genus and species of each fish in our aquarium than to know their general adaptations and habitats.

True or False

Answer 22

False

Question 23

Stingray’s “wings” are their:

a. Dorsal fins
b. Ventral fins
c. Pectoral fins
d. Adipose fins

Answer 23

c. Pectoral fins

Question 24

Stingray venom is protein-based, and can best be inactivated by ______.

Answer 24

heat

Question 25

We like to bring up the case of Steve Irwin when pointing out the dangers of stingrays. **True** or **False**

Answer 25

False

Question 26

Ampullea of Lorenzini are structures in the skin of sharks and rays that can detect and interpret electrical signals given off by other animals. **True** or **False**

Answer 26

True

Question 27

Our exhibit is called "Stingray Touch" because we create the situation where the ray touches the visitor rather than the other way around. **True** or **False**

Answer 27

True

Question 28

A group of rays is called a \_\_\_\_\_\_\_\_.

Answer 28

Fever

Question 29

"Sustainable seafood" means that it is fished or farmed in ways that protect sea life and habitats with methods that avoid overexploitation of resources. **True** or **False**

Answer 29

True

Question 30

Our stingrays are fed sustainable seafood. **True** or **False**

Answer 30

True