Blogs for March 15,16, 17,18,19
March 10, 2010
1. Which statement correctly identifies a difference bewteen the function of most arteries and veins?
a. Arteries carry red blood cells, whereas veins carry white blood cells.
b. Veins carry red blood cells, whereas arteries carry white blood cells.
c. Arteries carry blood to the heart, whereas veins carry blood away from the heart.
d. Veins carry blood to the heart whereas arteries carry blood away from the heart.
2. Which statement best describes how the nervous system helps a person react quickly after stepping on something sharp?
a. Electrical impulses are created by the muscles to move the foot away.
b. Each skin cell has pain receptors that directly cause muscle movement in the foot.
c. The muscles conduct pain impulses to the brain, which directs nerves to pull the foot back.
d. Signals travel on the nerves to the spinal cord, which causes a reflex that pulls the foot away.
3. Which organ is not functioning properly if an individual is unable to compact waste or reabsorb liquid from undigested food?
a. stomach
b. esophagus
c. small intestine
d. large intestine
4. As blood flows to the heart from the toes and fingers, it travels mainly through tissue called
a. veins
b.alveoli
c.arteries
d.capillaries
5. Somtimes when people eat, the food accidently enters a tube near the beginning of the respiratory system instead of the digestive system. This causes a person to cough. In which part of the respiratory system can food sometimes get stuck and casue difficulty in breathing?
a. lung
b. alveoli
c.trachea
d. diapghragm
Blog for March 8,9,10,11,12
March 10, 2010
1. What organelle is responsible for producing food for plants?
a. vacuole
b. cell wall
c. nucleus
d. chloroplast
2. What organelle stores food for the plant?
a. vacuole
b. cell wall
c. nucleus
d. chloroplast
3. Which statement describes how a plant cell’s functions would change in the absence of a vacuole?
a. The cell would not be able to produce proteins.
b. The cell would lack energy to destroy foreign objects.
c. Fluid and wastes would not be stored within the cell.
d. Materials would not be transported between the nucleus and cell membranes.
4. A scientist wanted to study a cell which lacked the structure that contains the materials needed to control cell’s activities. Which structure would need to be missing from the cell for this study to take place?
a. nucleus
b. vacuole
c. lysosome
d. mitochondrion
5. All cells have the which organelle?
a. nuclues
b. ribosomes
c. cell wall
d. chloroplast
Blogs for march 1,2,3,4,5
March 1, 2010
1.When on a windy day, most plants can remain upright. Which structure plays the greatest role in providing a plant with this type of support.
a. nucleus
b. mitochondria
c. cell wall
d. skeleton
Blogs ARMT Feb. 22, 23,24, 25,26, 2010
February 17, 2010
1. Which statement describes the process of growth within an organism?
a. A green vine uses energy from the Sun to produce more cells.
b. A fire produces more heat as additional fuel is added.
c. An oak tree drops its leaves when the seasons change.
d. An animal’s fur is raised when it senses danger.
Blog Feb. 12th
February 11, 2010
What do you know about Genetics?
Blog Feb. 11th
February 11, 2010
We traveled to Reflectives today to plant flowers for the Care Center. We learned many wonderful scientific from Mrs. McClintock, name a few new things that you learned. What did you enjoy most about the experience?
Blog Feb. 10th
February 11, 2010
What would happen in the cell if cytokinesis never took place after mitosis?
Blog Feb. 9th
February 11, 2010
Why is Interpahse so important in the cell cycle? Why is most of the time spent in this phase compared to the phases of Mitosis?
Blog Feb. 8th
February 11, 2010
What are some important facts that you learned from Dr. Hereford during his Black History Speech that you can use to make the world a better place today?
Blog Feb. 5th
February 2, 2010
List and explain the stages of interphase and mitosis.
