*Human Development and Comparative Embryology Quiz Thursday,  10/24*          Review every night!

                                                             Power Words

• zygote- the single cell formed from the union of male and female sex cells
• embryo-the first 8 weeks of embryonic development
• fetus-the unborn, young organism having a basic structural resemblance to the adult animal.  All major organs are present at this time.
• fertilization-the union of male and female sex cells during sexual reproduction.  In plants, this is called pollination and in humans it is called insemination.
• phylogeny- the embryonic development of a related group of organisms, like vertebrates.  They are all in the same phyla.
• ontogeny-the embryonic development of a single species, like humans.  

zygote- 1 cell
embryo- 1 million cells
newborn- 2 trillion cells
adult- 100 trillion cells
 
 

Here is the study guide for Friday's quiz:

Study Guide Reproduction/Organ System Quiz

1.   Name 3 organs of the respiratory system.

2.   Name 3 organs of the digestive system.

3.   In which 2 organ systems is the heart considered a major organ?

4.   In which organ system is the spinal cord a major organ?

5.   What are the 3 main parts of the circulatory system?

6.   What is one function of the skeletal system?

1.   ______________________ occurs when a male and female sex cell combine.

2.   In __________________ reproduction offspring form when nuclear material from 2 different parent cells combine.

3.   ____________________ reproduction is the production of offspring from a single parent.  Offspring are ________________ to the parent cell.

4.   Eggs are ___________________ formed in a female sex organ.

5.   Sperm are _______________________ formed in a male sex organ.

6.   One-celled organisms reproduce by ________________   ____________________.

7.   During fertilization, a single cell called a ______________ is formed

8.   Bacteria reproduce by _________________  __________________ when one bacterial cell splits into two.

9.   The production of a new plant from a portion of another plant is called ____________________  _________________________.

10.        Yeast cells reproduce when an offspring grows out of the body of the parent in _________________________.

11.        ___________________________ is the re-growth of a lost or damaged part of an organism.

Compare and contrast sexual and asexual reproduction.

Introduction to Reproduction

 Here is the power point on asexual and sexual reproduction we viewed in class today.