Texas A&M AgriLife Extension
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North Texas Master Naturalist

Ichthyology Homework

Are you ready to complete your Ichthyology Homework?

 

Name (Please use your real name) Email
1. 

There are more different fish species than the combined total species of reptiles, amphibians, mammals and birds.

2. 

Scientists believe that fish were the earliest vertebrates, and that all other vertebrates evolved from fish.

3. 

Which natural grouping of fishes includes sharks and rays?

4. 

Which natural grouping of fishes includes the majority of fish species?

5. 

What is the approximate number of fish species that have been identified worldwide to date?

6. 

How many freshwater species of fish have been identified in Texas?

7. 

____________ fishes are those that live and feed on or near the bottom of seas or lakes, while ____________ fishes are those that live and feed away from the bottom in the open water column.

8. 

The function of a swim bladder in ray-finned fishes is to:

9. 

_____________ fishes such as salmon migrate between fresh and marine water during different stages of their lives.

10. 

Choose all that apply: Humans harm fish populations by ____________.

Be sure to click Submit Quiz to see your results!

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1
7:00 PM - Chapter Meeting
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1
Spring Creek Forest Hike (VH)
January 1, 2025    
9:00 am - 11:00 am
Welcome the New Year by strolling with friends on a small-group guided walk along the creek and through the massive trees of Spring Creek Forest...
More Info
LLELA || First Day Nature Hike (AT)
January 1, 2025    
10:00 am - 11:30 am
Thrive Nature Park;
LLELA || First Day Nature Hike (AT) Wednesday, January 1, 2025  |  10:00am – 11:30am   CT Description:  Kick off the New Year with an invigorating...
More Info
Chapter Meeting
January 1, 2025    
7:00 pm - 8:45 pm
Room 125.
Chapter Meeting Placeholder. A further description monthly meeting will appear here as the scheduled meeting draws near. Join us in north Dallas at Dallas College...
More Info
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT)
January 4, 2025    
7:30 am - 9:30 am
John Bunker Sands Wetland Center (AT)
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT) Saturday, January 4, 2025  ||  7:30am – 9:30am Description:  Join us...
More Info
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT)
January 4, 2025    
9:00 am - 11:00 am
Branch Hollow Park, Kiosk
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT) Saturday, January 4, 2025   9:00 AM – 11:00 AM Description: Join Randy...
More Info
Heard Museum || 1st Saturday Guided Trails  (AT)
January 4, 2025    
9:30 am - 10:30 am
Heard Natural Science Museum & Wildlife Sanctuary
Heard Museum || 1st Saturday Guided Trails  (AT) Saturday, January 4, 2025  ||  9:30am – -10:30am CT Experience the ecology, geology, flora and fauna of...
More Info
Monthly Board Meeting Via Zoom
January 6, 2025    
7:23 pm - 8:23 pm
Board Meetings are open to all members and to the public. Please contact the Vice President at vicepresident@ntmn.org for meeting details if you want to...
More Info
LLELA || 2nd Saturday Bird Walk (AT)
January 11, 2025    
7:30 am - 10:00 am
Lewisville Lake Environmental Learning Area
LLELA || 2nd Saturday Bird Walk (AT) Saturday, January 11, 2025  |  7:30am – 10:00am   CT Description:  Birders of all skill levels are welcome to...
More Info
Heard Museum || 2nd Saturday Bird Walk (AT)
January 11, 2025    
8:00 am - 9:30 am
Heard Natural Science Museum & Wildlife Sanctuary
Heard Museum || 2nd Saturday Bird Walk (AT) Saturday, January 11, 2025 ||  8am – 9:30am CT Description:  2nd Saturday Bird Walks are intended to...
More Info
TMN-Elm Fork Chapter || 2nd Saturday Trail Walk at Furneaux Creek (AT)
January 11, 2025    
8:00 am - 10:00 am
Branch Hollow Park, Kiosk
TMN-Elm Fork Chapter || 2nd Saturday Trail Walk at Furneaux Creek (AT) Saturday, January 11, 2025   8:00 AM – 10:00 AM Description: Fun for all...
More Info
Trinity River Audubon Center || Second Saturday Guided Hike (AT)
January 11, 2025    
8:30 am - 10:00 am
Trinity River Audubon Center
Trinity River Audubon Center || Second Saturday Guided Hike (AT) Saturday, January 11, 2025  |  8:30am – 10:00am   CT Description: Join us for a guided...
More Info
Heard Museum || 3rd Thursday Bird Walk (AT)
January 16, 2025    
8:00 am - 9:30 am
Heard Natural Science Museum & Wildlife Sanctuary
Heard Museum || 3rd Thursday Bird Walk (AT) Thursday, January 16, 2025  |  8am – 9:30am CT Description: 3rd Thursday Bird Walks in the Heard...
More Info
Dallas Master Gardners-at Lakewood Branch Library || Unveiling the Hidden Wonders of Planting a Pollinator Garden (AT)
January 16, 2025    
6:00 pm - 7:00 pm
Dallas Public Library - Lakewood Branch
Dallas Master Gardners || Unveiling the Hidden Wonders of Planting a Pollinator Garden (AT) Thursday, January, 16, 2025  ||  6:00pm to 7:00pm   CT Description:  Growing...
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Trinity River Audubon Center || Morning Bird Walk (AT)
January 18, 2025    
7:30 am - 9:00 am
Trinity River Audubon Center
Trinity River Audubon Center || Morning Bird Walk (AT) Saturday, January 18, 2025  |  7:30am – 9am  CT Description:  Hit the trails with us to...
More Info
John Bunker Sands Wetland Center || 3rd Saturday Guided Boardwalk Tour (AT)
January 18, 2025    
9:00 am - 10:30 am
John Bunker Sands Wetland Center
John Bunker Sands Wetland Center || 3rd Saturday Guided Boardwalk Tour (AT) Saturday, January 18, 2025 ||  9:00 AM – 10:30 AM    CT Description:  As...
More Info
Lewisville Parks & Rec || Thrive Nature Walk –(AT)
January 19, 2025    
9:00 am - 10:30 am
Thrive Nature Park;
Lewisville Parks & Rec || Thrive Nature Walk –(AT) Sunday, January 19, 2025 | 9am – 10:30am   CT Description:  Sights of plants and wildlife, smells...
More Info
Buckeye Trail Restoration (VH)
January 25, 2025    
10:00 am - 12:30 pm
Please join us in re-establishing this beautiful Great Trinity Forest trail to the lovely grove of Texas Buckeyes! Rain dates are the following Saturday. Sign...
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Trinity River Audubon Center || Sunday Morning Bird Walk (AT)
January 26, 2025    
9:00 am - 10:00 am
Trinity River Audubon Center
Trinity River Audubon Center || Sunday Morning Bird Walk (AT) Sunday, January 26, 2025  |  9am – 10am  CT Description:  Join us for a Sunday...
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Friends of Piedmont Ridge Restoration Day
January 26, 2025    
1:30 pm - 4:30 pm
  Sunday, January 26, 2025  1:30 - 4:30pm Address: 2725 N. Jim Miller Rd. Dallas, Texas 75217; A few blocks south of Scyene in the parking...
More Info
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT)
February 1, 2025    
7:30 am - 9:30 am
John Bunker Sands Wetland Center (AT)
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT) Saturday, Feb 1, 2025  ||  7:30am – 9:30am Description:  Join us...
More Info
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT)
February 1, 2025    
9:00 am - 11:00 am
Furneaux Creek
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT) Saturday, February 1, 2025  ||  9:00 AM – 11:00 AM  CT Description:...
More Info
Heard Museum || 1st Saturday Guided Trails  (AT)
February 1, 2025    
9:30 am - 10:30 am
Heard Natural Science Museum & Wildlife Sanctuary
Heard Museum || 1st Saturday Guided Trails  (AT) Saturday, February 1, 2025  ||  9:30am – 10:30am CT Discription: Experience the ecology, geology, flora and fauna...
More Info
Events on January 1, 2025
01 Jan
Spring Creek Forest Hike (VH)
1 Jan 25
01 Jan
LLELA || First Day Nature Hike (AT)
1 Jan 25
Lewisville
01 Jan
Chapter Meeting
1 Jan 25
Farmers Branch
Events on January 4, 2025
04 Jan
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT)
4 Jan 25
Seagoville
04 Jan
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT)
4 Jan 25
Carrollton
04 Jan
Heard Museum || 1st Saturday Guided Trails  (AT)
4 Jan 25
McKinney
Events on January 6, 2025
06 Jan
Monthly Board Meeting Via Zoom
6 Jan 25
Events on January 11, 2025
11 Jan
LLELA || 2nd Saturday Bird Walk (AT)
11 Jan 25
Lewisville
11 Jan
Heard Museum || 2nd Saturday Bird Walk (AT)
11 Jan 25
McKinney
11 Jan
TMN-Elm Fork Chapter || 2nd Saturday Trail Walk at Furneaux Creek (AT)
11 Jan 25
Carrollton
11 Jan
Trinity River Audubon Center || Second Saturday Guided Hike (AT)
11 Jan 25
DALLAS
Events on January 16, 2025
16 Jan
Heard Museum || 3rd Thursday Bird Walk (AT)
16 Jan 25
McKinney
16 Jan
Dallas Master Gardners-at Lakewood Branch Library || Unveiling the Hidden Wonders of Planting a Pollinator Garden (AT)
16 Jan 25
Dallas
Events on January 18, 2025
18 Jan
Trinity River Audubon Center || Morning Bird Walk (AT)
18 Jan 25
DALLAS
18 Jan
John Bunker Sands Wetland Center || 3rd Saturday Guided Boardwalk Tour (AT)
18 Jan 25
Seagoville
Events on January 19, 2025
19 Jan
Lewisville Parks & Rec || Thrive Nature Walk –(AT)
19 Jan 25
Lewisville
Events on January 25, 2025
25 Jan
Buckeye Trail Restoration (VH)
25 Jan 25
Events on January 26, 2025
26 Jan
Trinity River Audubon Center || Sunday Morning Bird Walk (AT)
26 Jan 25
DALLAS
26 Jan
Friends of Piedmont Ridge Restoration Day
26 Jan 25
Events on February 1, 2025
01 Feb
John Bunker Sands Wetland Center || 1st Saturday Walk & Talk Bird Tour (AT)
1 Feb 25
Seagoville
01 Feb
TMN-Elm Fork Chapter || Early Bird Watch & Walk at Furneaux Creek (AT)
1 Feb 25
Carrollton
01 Feb
Heard Museum || 1st Saturday Guided Trails  (AT)
1 Feb 25
McKinney