Fact 1: Antigens are found on cancer cells and the cells of transplanted organs. Fact 2: Anything that can trigger an immune response is called an antigen. Given the two facts above, answer the question "What can trigger immune response?" with the following options: - harmful substances - Transplanted organs - desire - an area swollen with pus - death - pain - colors of the spectrum - Contaminated wounds
Transplanted organs

(Question)
Fact 1: Many consumers feed at more than one trophic level. Fact 2: Carnivores are consumers which eat animals or other consumers. Given the two facts above, answer the question "many what feed at more than one trophic level" with the following options: - roots - humans - carnivores - cacti - animals - people - algae - plants
(Answer)
carnivores

Ques: Fact 1: Fat is used to keep animals warm. Fact 2: With a thick fur coat and 4 inches of fat a bear stays warm. Given the two facts above, answer the question "What protects a bear from the cold?" with the following options: - hair - Fat - Mountains - coat - fur - bone - Glaciers - Fields
Ans: Fat

(Q).
Fact 1: Most plants grow roots down into the soil to absorb water and minerals. Fact 2: Bamboos are vigorous, rugged plants. Given the two facts above, answer the question "What grows roots down into the soil to absorb water and minerals?" with the following options: - bamboo - potatoes - the Sun - water - ice - Oak - burrs - Trees
(A).
bamboo

Ques:Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain. Fact 2: Acid rain comes from polluted clouds. Given the two facts above, answer the question "Gases from burning coal and and oil dissolving in the atmosphere can cause what?" with the following options: - polluted rain - disease - humidity - thunderstorms - snow - contamination - Temperature - harmful substances

Ans:polluted rain

Ques:Fact 1: Aplant requires water to grow. Fact 2: Water is absorbed by a plant's roots. Given the two facts above, answer the question "What helps plants grow?" with the following options: - Glucose - Enzymes - Roots - Cold temperatures - Bees - RNA - Confined Spaces - Shade

Ans:
Roots