The lipid bilayer<span> has been firmly established as the universal basis for cell-</span>membrane<span> structure. It is easily seen by </span>electron<span> microscopy, although specialized techniques, such as x-ray diffraction and </span>freeze-fracture electron microscopy<span>, are needed to reveal the details of its organization. The bilayer structure is attributable to the special properties of the </span>lipid<span> molecules, which cause them to assemble spontaneously into bilayers even under simple artificial conditions</span>
<span>b. gravel on the bottom of the aquarium</span>
An ecosystem involves both the biological (plants, animals, human beings) and non-biological (land, water, soil, and atmosphere) community which interacts as a system. More importantly, the living things are very dependent on the abiotic community since it cannot survive by itself. Every animal, plant and human needs the primary physiological needs of water, food and shelter provided by the abiotic system. <span>
</span>
Biotic factors:
Plants
Microorganisms
Macroorganisms
A. Alice carried the recessive allele
Answer: Category
Explanation:
Men with red hair, people over 6 feet tall are the category on which the people are divided. Category can be defined as the group of people that share the same characters and hence are kept in the same category.
All the men with red air are kept together and called as a category. Like this the category can be related to anything or any group of people sharing the same features.
This is called as category.
Answer: Taxonomy
Explanation:
Taxonomy is the science behind the classification and naming of living organisms based on their unique characteristics. According to taxonomy, living organisms are arranged from large to smaller categories, and are as follows:
Kingdom --> Phylum/Division --> Class --> Order --> Family --> Genus ---> species.
Also, organisms are named by two names. The first name is the genus while the second is the species. For instance: Homo sapiens is the scientific name for man