C. TRUE/FALSE Indicate if the following statements are
true or false.
a. Weeds are parasites.
B. Weeds may serve as hosts for insects or pathogens.
C. Weeds can reduce the carbon dioxide content of a greenhouse
D. Weeds can reduce the heat efficiency of a greenhouse
E. Weeds are visible problems only. They do not persist unseen in the soil
F. Weeds do not have botanical names because they are not of economic importance
G. All weeds are annuals
H. Dormant weed seeds can persist in the soil for several years
I. Uncultivated land is likely to have more weed seeds in the soil than cultivated land
J. Weed seeds can pass through the digestive tract of animals
K. The action threshold signaling the need for control is a common standard that can be applied to all crops and sites
L. IPM scouting requires the immediate recognition of when the action threshold for a plant is near
M. Alternate host plants can be used to a tracked insect pests away from economically prized plants

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa.which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars