Answer:
The most appropriate answer would be A. Serves as an identifier or marker to help cells recognize & distinguish themselves from one another.
The given molecule would belong to special class of proteins called as cell surface marker proteins or antigens. These are special proteins expressed on the membrane of the cell and serve as identifiers or markers of specific cell types.
These markers along with surface receptors help in cell-to-cell interaction and thus help the biological systems to work in coordinated fashion.
In addition, they help the immune system to distinguish between self and non-self or foreign cells. Immune system cells such as memory T and B cells, cytokines etc recognize specific cell surface proteins or antigens present on bacteria or other invading microorganism.
Answer:
The correct answer is e. They tend to be similar to species from the closest mainland.
Explanation:
The species that live in the oceanic islands are more likely to be similar to the closest mainland because the chances of migration of species from the closest mainland are highest that from other areas that are very distant from the island.
The best example of this is seen in the Galapagos island which is 600 miles from South America. South America is nearest to Galapagos island than the African continent. Therefore the species found in the Galapagos island are more related to species found in lands of south America.
Therefore the correct answer is e. They tend to be similar to species from the closest mainland.
A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides.
Answer:
Make a plan, Stan.
Keep track of trash.
Find your local food kitchen.
Understand expiration dates.
Learn to love leftovers.
Create a compost pile.
Take it home.
Use a smaller plate
Answer:
The correct answer would be -provide detailed information about the research and drug and let the man decide if he wanted to withdraw from the research or take new drug.
Explanation:
In this type of case where there is a drug that is in on going study or in clinic trail which is showing promising result, investigator should provide the client or subject a comprehensive account of the drug with is pro and cons and side effects.
He should discuss about the both currently available drug in market and ongoing research drug and let the man decide whether he want to be part of the research or withdraw from the research.