Answer:
Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.
Explanation:
The adult frog is a carnivore, it feed on insects such as grasshoppers, spiders. It can eats worms and any other living things which fits into its mouth. The liver is a digestive gland that helps in the process of digestion. It produces bile. The bile is collected in the gallbladder and it is poured in the upper part of the small intestine through the common bile duct. The bile assist in digestion. The other important function of the liver is to store digested food.
Answer:
Natural selection
Explanation:
Natural populations have variations. Organisms of a population have various genetic traits. Some of these genetic variations make the organisms better suited to the prevailing environmental conditions. These organisms are more likely to produce more progeny. Over generations, the frequency of the beneficial genetic traits increases in the population due to the higher reproductive success of the organisms with these genetic traits.
This process of differential fitness of organisms of a population where the organisms with adaptive genetic traits have survival and reproductive benefits is called natural selection.
a cell membrane and factory supervisor
Answer:
Please read the explanation section.
Explanation:
Genetic information:
Nucleic acids are the molecules that build the code of the genetic information of an organism.
There are two nucleic acids that are used in the repair, reproduction, and protein synthesis process. Those are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
DNA and RNA are the polymers that are made up of monomers called nucleotides.
Double helix:
A DNA molecule is a double helix which is made up of two strands of polymers. These two strands of polymers are complementary to each other but not identical to each one. Hydrogen bonding holds the base pairs of these two strands together.
The DNA base pairs are made up of Adenine, Guanine, Cytosine, and Thymine
Generally RNA does not use thymine, it uses uracil.
RNA is used to direct the production process of proteins by the cell.
RNA is generated by copying DNA.