Teosinte kernels are covered in a hard fruitcase, whereas maize kernels are "naked." What happened when Dr. Doebley's team introduced maize's version of the fruitcase gene into teosinte plants?

Analyze the photo above. Which of the Earth's biomes is home to evergreen trees that adapt to survive cold, dry winters?

Which climate dominates a majority of north america? a. subtropical b. tropical rainy c. dry d. temperate

How can wars led to changes in political maps?

Teotihuacán is located in IndiaMexicoChinaGreece.

Refineries turn what into many products which are then used to make things like DVDs crayons and plastics a. Bauxite b. Natural gas c. Petroleum d. iron

When were the chocolate hills discovered?

maria receives a cake order for charity event from a company. She uses 375g of flour, 250g of cocoa powder and 300g chocolate for a one kilogram cake. If the company orders a 7kg cake, what is the ratio of each of the ingredients that she needs?

How many states are north of the equator

Explain how the types of mountain landforms are related to one another.

Explain how natural actions such as weathering, erosion (wind, water and gravity), and soil formation affect Earth's surface.