Egg. Sperm. BAM! Zygote!

Document Sample
Egg. Sperm. BAM! Zygote! Powered By Docstoc
					Egg. Sperm. BAM! Zygote!

   A story of how it all began…
      To complete this lab…
1. Open and print out the lab from
   the website…“Sea Urchin Lab.”
  –unless you have a copy already from your teacher!

2. Follow the slides in this
   PowerPoint.
3. Draw the pictures.
4. Answer the questions.
5. Turn it in.
Once upon a time there was a…
                                S
    Hi!                         E
                                A
                                U
                                R
                                C
                                H
                                I
                                N
In order for me to shed gametes…
                     Inject a few mL
                     of potassium
                     chloride injected
                     in the urchin
                     around the
                     mouth…
                       Here…
Sperm—about 100   Eggs—
                    billions too!!!
    billion!!!!
Now—Egg! Sperm! Bam! Zygote!




      +        =
Egg   +   Sperm =    Zygote
A now it’s division time…
                The End!
• You should have all your pictures
  drawn.

• You will also have to answer all the
  questions.

• And turn it in!

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:20
posted:10/1/2012
language:Unknown
pages:9