"Carolus Linnaeus is the father of taxonomy which is the sytem of classifying and naming organisms. One of his contributions was the development of a hierarchical system of classification of nature. Today this system includes eight tata: doman, kingdom, phyrum, class, order, family, genus, and species"
Answer:
Explanation:
Spanish: Factores ambientales: los elementos en el entorno de un individuo pueden aumentar la ansiedad. El estrés de una relación personal, laboral, escolar o financiera puede contribuir en gran medida a los trastornos de ansiedad. Incluso los niveles bajos de oxígeno en áreas de gran altitud pueden aumentar los síntomas de ansiedad.
English: Environmental factors: Elements in the environment around an individual can increase anxiety. Stress from a personal relationship, job, school, or financial predicament can contribute greatly to anxiety disorders. Even low oxygen levels in high-altitude areas can add to anxiety symptoms.
Answer:
b. enables cell to recognize and respond to external environment
Explanation:
There are two types of receptor present in/on the cell. The receptors that are present on the cell surface are called the cell surface receptor and the receptor which is present inside the cell is called an intracellular receptor.
The cell surface receptor is responsible for enabling the cell to recognize and respond to the external environment. The signal molecules that bind to the cell surface receptors are mostly hydrophilic and they generate an intracellular cascade in the cell which brings specific changes in the cell. So the right answer is b.
Answer:
All of these are correct.
Explanation:
ATP synthase is an F type pump with two multiprotein complexes. One of the protein complexes has three types of integral membrane proteins a, b and c while another protein complex has five polypeptides with distinct composition. It has three copies of each alpha and beta subunits and one copy of each gamma, delta and epsilon subunits.
The beta subunits have a binding site for ADP and Pi and catalyze ATP synthesis. Rotation of gamma subunits relative to the fixed alpha and beta subunits causes the catalytic binding site of each beta subunit to obtain either of three conformational states.
An O state has a high low affinity for ATP, ADP, and Pi while L state has a high affinity for ADP and Pi. The T state binds to ADP and Pi tightly to facilitate the formation of ATP. The T state also has a high affinity for ATP.
Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explanation:
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