The observable traits expressed by an organism are referred to as its phenotype. An organism's underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype.
It is C. He said that they where formed in layers.
It happens over many generations.
Answer:
92,955,807 miles
Earth orbits the sun 100,000 times closer than the Oort Cloud, at an average of 92,955,807 miles (149,597,870 km). The distance from Earth to the sun is called an astronomical unit, or AU, which is used to measure distances throughout the solar system.
Spindle fibers form in plant cells without centrioles by the centromere. They are responsible in organizing the spindle especially for plants which lacks centrioles. Centromere is the strongest and the thinnest region of a chromosome.
