inherited variation
The fact that all living organisms are made up of cells is a major part of the?
Natural selection, the method by which evolution works, is driven by the fact that organisms that die before reproducing do not pass on their genes to their offspring and because of this only those that can survive long enough to reproduce will do so and thus populations tend to be filled with those who survive the best in their current environment. The few bugs that don't die from pesticide reproduce and have (mostly) pesticide-resistant offspring that, in turn, have even more pesticide-resistant offspring.
The stages of development of the embryos of certain organisms are extremely similar, a fact that suggests the organisms had common ancestors.
Comparative biochemistry.
Organisms are open systems due to the fact that they maintain a steady state. They exchange both matter and energy with their surroundings.
The females do the rearing of the offspring. In fact, some male animals are known for eating their own offspring, like Lions. Males are usually highly aggressive to their offspring.
They must be able to reproduce, and their offspring must be fertile as well. So technically, because ligers are in fact fertile, tigers and lions are one species, regardless of the fact we classify them as two.
Male seahorses carry the offspring, not the females.
It refers to the fact that poorly adapted organisms in a population die in greater numbers than those that are well adapted.When referring to a specific species, a species fitness is measured solely by the number of offspring that an individual has
They are all alive.
Identical twins, due to the fact that the one fertilized egg splits, have identical DNA. Fraternal twins, since they are from separate eggs, have different DNA.
The fact that all living organisms are made up of cells is a major part of the?
As a matter of fact,they are.
No
Offspring must compete for available resources in order to survive
Atheism and Evolution are two different things that are often miscombined. Atheism is a belief or philosophy that there are no Deities. Evolution is a biological process whereby the structure and genetic code of organisms change over many generations, as particularly unsuccessful organisms die without offspring and particularly successful organisms are likely to have more offspring. The characteristics of the successful organism thus become the norm.There is no particular reason to link them, other than the fact that atheists are less likely to reject evolution on the basis of their philosophy.
Humans are generally not considered typical organisms. In fact, humans are often considered unique organisms simply due to their complexity.