Answer:
A.) An organism obtains one allele for a gene of a specific trait from each parent on one chromosome.
Answer:
Forms of fossil records can inlude the carcasses of animals and the structure of plants. These records can compare the advancements of creatures over a long period of time.
Explanation:
The further an animal or plant is burried underneath the soil, it is most likely that it lived much longer ago than a layer above it. The theory of evolution suggests that animals are always changing and adapting to their surroundings. For instance, millions of years ago, a dog like mamal existed but over time they grew accustomed to the water, developing fins flippers and eventually developed features similar to what we expect in whales today.
Plants, on the other hand, may have been much larger than the size they are today due to the excess of oxygen present in the atmosphere. Therefore, when they are fossilized scientists can realize that plants have come a long way in the tree of evolution.
Answer:
Water molecules are polar and form strong hydrogen bonds.
Explanation:
Properties like high surface tension and boiling point are unique to water due to water's polar molecules. This allows water to form very strong hydrogen bonds and give it some different abilities.
Answer:
<em>The number of chromosomes is maintained through the process of mitosis during asexual reproduction. </em>
Mitosis can be described as a process in which a cell divides and produces two daughter cells which are exactly similar to the parent cell. The chromosome number of the daughter cells will be the same as the parent cells. No crossing over or recombination occurs during this type of cell division. Hence, mitosis is an effective way to maintain the chromosome number of organisms which reproduce asexually.
Explanation:
Locomotion bacteria, protists and fungi The movement for living beings can be the difference between living and dying, some of the bacteria have the ability to move through two mechanisms: movement by flagella and movement by sliding Movement by phalanges: in bacteria, the Flagella are thin and elongated structures that remain attached to the cell by one end. The flagella are made of a protein called flagelin and its shape is helical, for the movement the flagellum has a system called an engine that is at the base and the wall is connected to the membrane. The motor system works driven by protons that move thanks to the action of the proteins of the base of the scourge., The rotation and movement of the scourge are not constant and depend on stimuli. The flagella are arranged differently according to the type of bacteria, there are peritic, lofotrica and polar flagella.
