Question #1 Insulin is only made by the B-cells in the pancreas. Which statement best explains why? (a) B-cells are the only cells that express the insulin gene. (b) B-cells attack any other cells that express the insulin gene. (c) B-cells secrete proteins that stop other cells from expressing the insulin gene. (d) B-cells have the gene to make insulin, but no other cell has it.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.