Science Homework
Due: Block Day, November 9
Name: ______________________________
th
/November
10th, 2011
Teacher: ____________
Period: ____
TEST REVIEW:
Word Bank:
Allele
Different
Function
Sexual Reproduction
Structure
Genotype
Phenotype
DIRECTIONS: Use the word bank and your notes to complete each sentence below.
1. ___________________ is the mating of two organisms to produce offspring. This produces the most
diversity in offspring.
2. An ________________ is a form of a gene that you inherit from each parent. It can be recessive or
dominant.
3. The exact alleles that are inherited by each parent are considered a person’s _________________.
Another way to say this would be that it is a person’s genetic code for a trait.
4. A _____________________ is the outward expression of a trait or characteristic. It is the appearance
of the trait.
5. The __________________ is the way something is built, its parts and how it is organized.
6. The __________________ can also be described as the job of a cell, tissue, organ or organism.
7. Things with different structures also have ___________________ functions.
Directions: Using your notebook please complete the following drawing.
DRAW DNA in the form of chromosomes in the nucleus of a cell. LABEL the cell, nucleus, chromosomes,
and genes
Directions: Use the word bank to complete the following sentences about reproduction.
Asexual
Sexual
More
one
different
less
offspring
Sexual
identical
1. A paramecium, shown on the right, is a one-celled organism that
reproduces by splitting in half to become two new cells. This can be
described as ________________________ reproduction because there
is only _________________ parent. All __________________ produced
have DNA which is _______________ to the parent.
2. Asexual reproduction produces offspring with _____________
genetic variation than in _________________ reproduction.
3. In ____________________ reproduction offspring are produced from two parents. Each offspring
produced has _____________ DNA from each of the two parents. Offspring produced from sexual
reproduction have ______________ variety of genotypes and phenotypes produced, when compared
with asexual reproduction.
Organize the following terms with the least complex in the inner circle and the most complex on the outer circle.
Organism
organ
tissue
organ system
cell
Directions: Look at the monster traits below in the chart. Use both to complete the table below.
You have captured a monster on the way home from school. Pictured below is a pair of the monster’s
chromosomes. Use the information to describe the genotype and phenotype of your monster, using the traits
in the chart above. Finally, draw the phenotype of the monster you have captured in the space below.
Trait
Fangs
Horns
Skin Color
Trait
Fangs
Horns
Skin Color
Dominant Allele
Big Fangs (B)
Horns on Head (H)
Green (G)
Your Monster’s Genotype
Recessive Allele
No fangs (b)
No horns (h)
Red (g)
Your Monster’s phenotype
Draw and color your monster’s phenotype:
Comparing and Contrasting the Nervous System and the Endocrine System
Nervous System
Both Systems
to collect, analyze, store, and send
information throughout body
Sends messages by creating and
sending _______________
impulses.
Endocrine System
Regulate body function
Control body systems
Allow the body to respond to
______________ in the
environment.
Sends messages by creating and
sending chemical messengers
called __________________.
Keep the body in
___________________, another
word for balance.
Examples of major organs:
Word Bank:
testes
Brain
Major organs
Hormones
adrenal gland
spinal cord
nerves
Label the major organs of the Endocrine System:
pituitary gland
Examples of major organs:
homeostasis
electrical
pancreas
stimuli
ovaries