Honors Marine BiologyModule 4
October 7, 2014
Class Challenge
Who can tell the best joke
4-H Registration
Weekly AssignmentsAlways check the website first additional information from
and for class. It is important to take the time to view videos and read the content;
Reading Assignment is one week ahead
On Your Own Questions: “OYO’s”
Study Guide Questions:
Finish Experiments in Lab book
Studying for the Quiz
Class Challenge
Notebook Checks
Will be October 21 when we have finished Module 4.
All On Your Own, Study Guide questions and Tests completed and Graded
for Modules 3 & 4.
Your Lab book completed.
South Lido Park Wet Lab
Joshua in the DR
Were you able to collect data?
Go to The website for data:Water Temperature: Salinity:
Vegetation:
Using Drag nets we collected the following
Specimens
Birds:
Start your day early with an eclipse of the full Moon! Before or during dawn on October 8, 2014, a total lunar eclipse will
be visible across most of North America.
The "blood moon" total lunar eclipse will rise during the full moon of Oct. 8 just before sunrise on the East Coast of the United States, totality starts at 6:25 a.m. EDT in North America. (4:45 EDT to 7:24 EDT)
But red might not be the only color people see during the total eclipse. Weather permitting, it's possible that some sharp-eyed observers might be able to see some blue in the moon's glow. The event will be the second of four consecutive total lunar eclipses in 2014 and 2015, according to NASA officials.
We’re approaching the second of four total lunar eclipses that come at half-year intervals in 2014 and 2015: a lunar-eclipse tetrad. All four can be seen from at least parts of North America.
"It promises to be a stunning sight, even from the most light-polluted cities," NASA eclipse expert Fred Espenak said in a statement. "I encourage everyone, especially families with curious children, to go out and enjoy the event."
To Learn how to photograph a Lunar Eclipse go to:
http://www.skyandtelescope.com/observing/observing-and-photographing-lunar-eclipses/
If you snap an amazing picture of the Oct. 8 total lunar eclipse, you can send photos, comments and your name and location to managing editor Tariq Malik at [email protected].
During October's lunar eclipse, the planet Uranus will be nearby. The Moon’s position might vary a bit; it’s plotted here for an observer in the middle of North America at the start of totality.
Total Eclipse of the Moon -Blood Moons-
Marine Invertebrates
Invertebrates: Animals that do not possess a backbone.
Vertebrates: Animals that possess a backbone.
Kingdom PoriferaSponges
Sponges are complex groups of specialized cells. These cells do not work together like cells in true tissues, but they cluster into special groups of cells that carry out specific functions.
Sponges
These groups are organized into a recognizable individual.
Examples
Tarpon Springs, Florida
Sponges
Grow in an amazing variety of shapes, sizes and colors and can range in size from less than a few centimeters to many meters high.
Even through they are considered animals, they are attached to the sea floor called substrate.
Diagram of a SpongeFigure 4.2 page 78
3 Body Types of a Sponge
Ascon Sycon Leucon
Sponge Spicules
Larger and more complex sponges are beg enough to require a form of support. Some have a network of SPICULES made of calcium carbonate or silica.
These form the “skeleton” of the larger sponges, supporting them so they stand upright in the water.
Sponge Classification
In order to classify sponges, a marine biologist often looks at the sponge’s unique spicule shape rather than looking at a sponge’s overall appearance.
Sponges• Spongin: Web-like skeleton of elastic protein
fibers.• Amoebocytes: Cells within a sponge that
produce its skeletal, perform digestion, and cell damage.
• Gemmule: A group of cells surrounded by a shell made of spicules.
• Larva: An immature stage of an animal that appears different from the adult stage.
• Metamorphosis: A complete morphological change from larval to adult form.
Cnidaria
Also know as coelenterates.
Contain a coel, a large body
cavity.
Jellyfish, corals,
sea anemones.
Cnidaria
1. Have specialized tissues that perform specific functions.
2. Have the ability to move in a more intricate way than a sponge.
Cnidaria Body Symmetry
The three body types:1. Spherical symmetry: A body form in which
any cut through the organism’s center results in identical halves.
2. Radial Symmetry: A body form in which any longitudinal cut (along the length) through the organism’s central axis results in identical halves.
3. Bilateral Symmetry: A body form in which only one longitudinal cut through the organism’s center results in identical halves.
Cnidarian
Cnidarians display radial symmetry, having no true head, front, or back.
The only differentiation in these animals is that they have a side with a mouth – an oral side – and an opposite side – an aboral side.
Organisms in this phylum have one of two basic body forms: Polyp or Medusa. (figure 4.6)
Medusa
Is very much like an upside-down polyp. Both polyp and medusa have a similar body plan, with a centrally located mouth surrounded by food-capturing tentacles.
The tentacles have unique stinging structures called nematocysts that can paralyze prey or ward off predators.
Mesoglea
Is the jelly-like substance between the inner layer and outer layer of cells in an cnidarian.
Cnidarians
Nearly all of them are carnivors.
Many capture prey much larger than the plankton that sponges eat.
Life cycle of Cnidarian
Experiment 4.1: Observation of a Sponge
Introduction: Sponges are pore-filled organisms of various folded body types. Observe and label sponge specimen.
Supplies: A natural sponge, knife or scissors
Observations:
Type of sponge; body type; spicule shape
Experiment 4.A: Life cycle of Cnidarian
Carefully draw into lab book
Homework
Read Module 4 pages 88-93;Answer OYO questions: 4.1 – 4.4Answer Study Guide Questions: 2-13 and define a-j;Complete Experiments 4.1 and 4.AClass Challenge:Quiz: What is a Spicula on a sponge? Define a collar cell on a sponge. Define and Draw the 3 Body Symmetry (Figure 4.5) Notebook Check: October 21: Modules 3 and 4
