(a) Describe the importance of phenotypic variation in louse body color among individuals in a population of lice.

(b) Justify the decision of the researchers to hold lighting conditions constant in their experiment.

This is science by the way which of the following is an example of an environmental pressure a. the air pressure in the atmosphere b. a lake that is gradually running out of water c. a fight between two members of the same species d. breeding between two members of the same species

  usually, loads of more than pounds require the assistance of a second person.           a. 40   b. 20   c. 50   d. 30

1. the community center is putting on a play. there are several things the crew has to create for the scenery. (a) they spent $6.17 on each of 4 poster boards. how much did they spend on poster boards in total? show your work. (b) they spent $200.20 total on new lighting. each of the four lights cost the same amount. how much did they pay per light? show your work. (c) if the total budget was $300, how much more can they spend? show your work.