Day 31Animal Cell Structure

Miochondrion – where energy is produced. Cell membrane – the wall of the cell.Nucleus – contains the cell’s genetic materials. (chromosomes/DNA)

Day 32 – Plant Cell

Choloroplasts – photosynthesis – making energy from light.

Day 33

meters milliliters grams

Day 34

Day 35

Scientists studied a rattlesnake population from 1972 through 2002. No snakes moved into or out of the population during this time.

What most likely happened between 1992 and 2002? A. There were more births than deathsB. There were less births than deaths. C. The birth and death rate were equal

A biologist is studying the effects of enzymes.

Which measuring instrument should the biologist use to add the enzyme to the test tubes? A. flaskB. beakerC. pipette flask beaker pipette

Day 36

What is the role of Test Tube 4 in this experiment? a. It was the control. (Hold the same) b. It was the dependent variable. (the result) c. It was the independent (tested) variable.

Day 37

1. Which instrument would be used to measure milligrams? Kilograms?

2. Which body part is most like the grasshopper leg?

Day 38A student is researching three examples of animal relationships. - Worms live in a sheep’s liver and feed on the sheep’s tissues. - Wasp lay their eggs on caterpillars to the wasp larvae can feed on the caterpillar. - Small “cleaning” shrimp eat the parasites off the bodies of fish.

Which statement best describes the students observations? a. The wasps and caterpillars are an example of mutualism.B b. The worms and sheep are an example of commensalism. c. The shrimp and fish are an example of mutualism.

Day 39

Day 40