Answer:
B I think so
Explanation:
If I'm right mark me as brainliest and follow e
Answer:
Darwin would have said that variation of sizes, tail colors, and tail shapes were due to the guppies developing some unique traits that had made them more preferable to breeders.
The breeders then used artificial selection to pick guppies with these desired characteristics.
These guppie then passed these favorable genes to their offspring.
The guppies without these traits were not selected and hence were wiped out.
These traits are particular to the breeders preferences.
Answer:
An ionic bond is formed between a metal and a non-metal. Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.
Explanation:
There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 - 200 kcal/mol). Whether two atoms can form a covalent bond depends upon their electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and negatively charged ion (anion). The bond between these two ions is called an ionic bond.
Corn, believe it or not, is indeed a type of grass. It has been selectively bred, and genetically engineered to produce large ears of corn.
The answer is osteoclasts
