Solid because it maintains their shape and is rigid
in this case the answer would be letter "D"
A part of the definition of binary fission is "splitting in half." It is an asexual form of reproduction, one turns in to two. This is choice B.
Explanation:
charles darwin proposed thoery of natural selection.he had collected imnumerable specimens of plant and animals.he published concept survival of fittest. while explaining he says that There is always competition for food.only those organism survive which shows adptations in various reasons. it thoery of natural selection.
There are some objections,
1. natural selection is not only factor responsible for evolution.
2. darwin did not mention uesful and useless modifications.
3. There is no explanation about slow and abrupt changes
Genetic
since we are made from our dna
