Chapter 5: Populations

Here's the link to chapter 5 in the textbook.

Vocabulary Test 4

Here's the vocabulary that could be on Vocabulary Test 4, which will be Mon, Nov 16.

Vocabulary

• biomass - the total amount of living tissue within a given trophic level
• carnivore - organism that obtains energy by killing and eating animals
• chemosynthesis - process in which chemical energy is used to produce carbohydrates
• consumer - organism that relies on consuming other organisms for its energy and food supply
• decomposer - organism that chemically breaks down and obtains energy from dead organic matter
• detritivore - organism that feeds on plant and animal remains and other dead matter
• herbivore - organism that obtains energy by eating only plants
• heterotroph - organism that obtains energy by consuming other organisms
• omnivore - organism that obtains energy by eating plants and animals
• primary producer - first producer of energy-rich compounds that are later used by other organisms
• scavenger - animal that consumes the caucuses of other animals
• transpiration - loss of water from a plant through its leaves
• trophic level - each step in a food chain or food web
• aphotic zone - dark layer of oceans where sunlight does not penetrate
• benthos - organisms that live attached to or near the bottom of lakes, streams, or oceans
• ecological succession - series of gradual changes that occur in a community following a disturbance
• limiting factor - factors that cause population growth to decrease
• photic zone - sunlight region near the surface of water
• pioneer species - first species to populate an area during success
• plankton - microscopic organisms that live in aquatic environments
• primary succession - succession that occurs in an area in which no trace of a previous community is present
• salinity - the amount of dissolved salt in water
• secondary succession - type of succession that occurs in an area that was only partially destroyed by disturbance

1st period homework

Since the 10th graders missed 1st period on Oct 10 due to the class ring presentation, there's a homework assignment to get you caught up on chapter 4, section 1. Read pages 96-98 of the textbook and answer questions 1 and 2 (all parts) on page 98. Here's a link to the PDF of the textbook.

Bring your homework to class on Monday, Nov 2. 

Chapter 4 of the textbook

Here's a link to the PDF of the textbook.


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atoms review extra credit

The extra credit assignment is to answer questions 1-5 on page 38 of the textbook. Restate the questions and write complete sentences. This is worth up to 20 points added to your class assignments average.

You can use the PDF of chapter 2 to complete this assignment. It's due on Tuesday, Oct 27. If you don't have this class on Tuesday, bring turn it in before school or between classes. 

Period 4 homework

Here's the homework assignment for 4th period. This is a chance to review information on macromolecules from chapter 2.

Open the PDF of chapter 2 and answer questions #1-3 (all the parts) from page 49. Turn the homework in on Friday, Oct 23.

Chapter 3: The Biosphere

Here's the PDF for chapter 3.