Echinoderms have radial symmetry.
Answer:
Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.
The FSH will decrease and remain at a low level during the 15-28 days of the cycle because at this stage, the egg is waiting to be fertilized. The FSH needs to be low to prepare the uterus lining in case the egg will be fertilized.
<span>Molecular clocks use rates of mutation to measure
evolutionary time. Mutations add up at a fairly constant rate in the DNA of
species that evolved from a common ancestor. The more mutations that happened
in each lineage, the greater is the differences between these lineages.</span>
What is true about carbohydrates is that <span>B. Carbohydrates provide energy for living things. Glucose is a monosaccaharide that is the basic source of energy transformed from bodily functions such as glycolysis. Carbohydrates include starch which is found in rice, potatoes which are good sources of energy</span>
