<span>if i remeber correctly it should be B. but im not so sure on this one</span>
Answer:
The correct answer will be option C- Convergent evolution.
Explanation:
The body shape of dolphins, sharks and penguins show similarity in structure sue to the same niche they inhabit which is the ocean.
All of them exhibit features which helped them survive in ocean-like streamlined bodies, fins and flippers. The dolphin, shark and penguins are not closely related but inherited similar characters (streamlined bodies, fins and flippers) due to the process of convergent evolution. These analogous features helped their survival in the same conditions.
Thus, option C- Convergent evolution is the correct answer.
Carbon Dating is the method that scientists use to determine a sample's absolute age
Answer:
<em>a) Alleles at one locus can hide or mask the effect of alleles at another locus </em>
Explanation:
Gene interactions happen between genes at different levels and have implications in the phenotypic expression, causing a wide genetic variability.
Epistasis means "interruption" and refers to interactions between genes located in different loci in the same chromosome. An “epistatic gene” can alter, influence, or suppress the expression of a "hypostatic gene". Epistatic genes might be either recessive or dominant. When the epistatic gene is recessive, the interaction is known as "recessive epistasis". While when the epistatic gene is dominant, the interaction is known as "dominant epistasis"
Observing the altered phenotype proportions of the offspring can reveal which interaction is operating in the trait determination.
Well, think about the types of movements (transportation) that happens between what surrounds the cells and inside the cell. When talking about active transport, materials will move from low to high concentration. There are sodium potassium pump that allows certain things to move sodium inside the cell and potassium outside the cell. The other two types of active transport are endocytosis and exocytosis which uses the cell membrane to move large amount of materials in and out of the cell. In the other hand, passive transport move things from high to low concentration that requires no energy at all. First of all, there are three types of passive transport. One of them (which will definitely will answer your question) is osmosis. Although osmosis moves water in and out of the cell, there are pretty special. One type of Osmosis is hypertonic, in which causes the cell to release its materials, if the concentration inside the cell is greater than outside the cell. The other type is hypotonic, in which materials move inside the cell causing the cell to get bigger if only if the concentration outside the cell is greater than inside the cell. Finally, the isotonic is when they're an equal distribution between inside and outside the cell (no movement of materials). That's all, and I hope I gave you enough information so you can master this topic!<em> If you have any questions like this, please respond and I am happy to answer your questions!</em>