The correct answers are: The lipid bilayer and proteins exist side by side without covalent bonds between them and Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane
According to fluid mosaic model, there is a lipid bilayer that gives fluidity and in which the protein molecules are embedded.
The membrane is mosaic because there is a pattern of different types of molecules that are put together. Molecules are constantly moving in two dimensions.
Components of the cell membrane include:
• Phospholipids – Form a bilayer
• Cholesterol –improves stability and reduce fluidity
• Proteins –integral (transmembrane) or peripheral
• Sugars-usually attached to proteins.
Answer: The correct answer is-
muscle, nervous, connective, and epithelial.
Tissue can be described as a group of specialized cells that are clustered together to perform particular function.
There are primarily four main types of tissue, which are present in the human body. These tissues are-
Muscle tissue ( assist in locomotion and provides structural support to body).
epithelial tissue ( covers surface of body surface and forms internal lining in most of the organs),
connective tissue ( such as bones, cartilage, blood) that is abundantly present in the body.
nervous tissue ( helps in the transmission of electrical signals through out body).
Answer:
The correct answer will be- Option-A
Explanation:
The Theory of Island Biogeography was proposed by the MacArthur and Wilson's in 1967 which proposed that the number of species-immigration and extinction rates are determined by the size of the island and distance of the island from the mainland.
The suggestions made by them are:
1. The islands which remain farther from the mainland receive very few species as compared to the closest mainland.
2. Smaller island shows a high rate of species extinction as compared to the larger island.
Thus, option-A is the correct answer.
C. <span> prokaryotes convert nitrogen-containing molecules into forms that can't be used by other organisms.</span>
When the sperm and the egg comes together they equal to 46 chromosomes. If the sperm and the egg had less or more than 23 chromosomes the baby would be abnormal/deformed
