Which process following meiosis explain why offsprings have a unique genetic profile different than the parent cells? A. cytokineisis
B. crossing over
C. fertilization
D. fusion of the body

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

Why has two different alleles for the same trait?