Chapter 7 Waves and Sound - 1
Chapter 7: Waves and Sound
A wave is a disturbance which travels through a medium from the source that causes the
disturbance. For example, Alfred is peacefully fishing from his canoe on a still lake when a
UNIT 2: MATTER
A. BASICS OF MATTER
Anything that has mass and volume
Chemistry is the study of matter
2. STATES OF MATTER
Solid, liquid, gas
3. PROPERTIES OF MATTER
Physical Properties: can be changed without changing the composition. Same subs
UNIT 3: CHEMICAL REACTIONS
REACTIONS AND CHEMICAL EQUATIONS
(A) CH EMIC AL EQ UAT IO N
2Na(s) + 2H2O(l) 2NaOH(aq) + H2(g)
Expresses the identities and quantities of substances involved in a chemical or physical change.
Substances that react (reactant
PHYS 1114 Basic Physics
Week 9 slides
Chapter 6: Fluids
1. Two objects are placed in a fluid. Object 1 has
weight 10.0 N while Object 2 has weight 8.0 N. Both
objects experience a buoyant force of 4.0 N. Which
object has a smaller apparent wei
Langara College Math1170 Section 2.7
2.7 Operations of Functions
Functions have their own arithmetic that is consistent with the
arithmetic of real numbers.
Suppose f and g are functions and
SELF-CARE DEPRESSION PROGRAM
Dan Bilsker PhD
Randy Paterson PhD
Dan is a clinical psychologist
who works at Vancouver General
Hospital and consults to a mental
health research group at Simon
FINALLY, MY THESIS ON ACADEMIC
JUSTIN D. MCCLOSKEY
Presented to the Faculty of the Graduate School of
The University of Texas at Arlington in Partial Fulfillment
of the Requirements
for the Degree of
MASTER OF SCIENCE IN PSYCHOLOGY
BIOLOGY 1203 WEEK 1
Energy storage and usage
Other nutritional factors
ENZYMATIC DIGESTION LAB
Examining the effect and efficiency of various
Note the initial sets of choices in your key should be based on major anatomical differences,
not something like colour that may change with the season, or surface markings. Look back at
the key in this lab manual see the major distinctions made early in
Gram Stain Procedure
Watch the demonstration of this technique before attempting to make your own slide.
a. Preparing a Bacterial Smear:
1. Obtain a clean dry glass slide. With a wax pencil, draw a circle about 2 cm wide on
the bottom of the glass. You wi
e. Lobe finned fishes (Class Sarcopterygii)
The Coelacanths were thought to have become extinct over 65 million years ago until live
specimens were discovered in deep water off the coast of Madagascar, East Africa, and in parts
of Asia. These fish have sm
3 Skin with scales.
3 Skin with no scales.
4 Skin with hair or fur, mammary glands present
4' Skin without hair or fur, no mammary glands .
5 Skin smooth, toes without claws .
5' Skin with scales .
Next to the whole mount is a cross section slide of Amphioxus. Draw the cross section and
label the dorsal hollow nerve chord and notochord evident in the specimen.
SUBPHYLUM VERTEBRATA: THE MAJOR CLASSES
Within the Phylum Chordata, the members of
1. The Key Characteristics
Ask yourselves the following questions as you move through the display material set up for you
in the lab. Make sure that you fill in the chart at the end of this lab with the answers to these
a. Is there a persistent
D. Phylum Mollusca
The Phylum Mollusca is remarkable in that its members have been shaped by evolution into a
great diversity of body forms. All are bilaterally symmetrical at some point in their development
and also show protostome embryonic development.
Obtain a slide labeled c.s. of the earthworm from the cardboard booklet at your table. Focus
under low power on your compound microscope, and locate the intestine, the body wall, and the
space between the two. Sketch the earthworm cross section slide, and
IV. THE MAJOR INVERTEBRATE PHYLA
Identify the characteristics discussed above in the specimens, charts, slides and models of the
invertebrate phyla provided. Summarize your observations in the table on pages 4-16 and 4-17.
A. Phylum Porifera:
What is the function of the operculum? _
Watch how the fish in the tank use different fins to move. From your observations, which fin(s)
do you think that fastest swimming fish use for propulsion?
See the chart on display re different fish body shapes
Observe the slides of bacteria on display, and draw the shape (morphology) of each type of
bacterial cell. Make a slide of the cyanobacterium, Anabaena, and draw a filament.
d) cyanobacteria: Anabaena filament
Observe the specimens on display and sketch several representative echinoderms.
Describe pentaradial symmetry seen in this phylum. Give two anatomical features that show
this unique symmetry. This answer may be more obvious after you have completed the
Reptiles are also classified as heliotherms.
Birds (Subclass Aves)
Common representatives of this subclass: _
The relationship of birds to other animals has long been debated, but the overwhelming
evidence which suggests that they are descended from o
Would you expect any growth to occur on Plate D, the uninoculated control? Explain why.
Eukaryotic organisms are usually larger and more complex than prokaryotes. Give two
additional ways that eukaryotes significantly differ from
c) Dinoflagellates are motile photosynthetic organisms that are a very important component of
marine ecosystems. Over half of the known species are photosynthetic. View the slide of
dinoflagellates on the side bench and draw an organism below.
j. If an animal is oviparous, does it have an amniotic egg (containing membranes that suspend
the embryo in a fluid filled sac with a tough outer covering) or is it lacking such membranes?
In fish and amphibians, the egg lacks a shell and protective embry
Domains are subdivided into series of increasingly specific categories. Phyla are further
subdivided into: Class, Order, Family, Genus and species. A way to remember the order of
the entire set of groupings is: Dutch Kings Play Chess On Finely Ground sand
scale also has comb-like projections on its back surface. This type of fish scale is called a
ctenoid scale. Draw a fish scale in the space provided below.
What are three functions of fish scales?
Using scissors, cut through the skin and muscles alo