Ogy A 1. In sickle-cell disease, an allele produces red blood cells with an abnormal shape,
which affects many other traits in the same individual. What genetic behavior
does this describe?
mits
A polygenic
B pleiotropy
C codominance
very
80%
D dominance
60%

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

if you know your abc's you should be able to get your answer or just use google

a. an idea which cannot be disproven!

explanation: