Answer:
Heterotroph obtain chemical energy from other organisms.
Explanation:
Heterotroph are the organisms which are unable to make their own food like plants. They get energy from feeding on other animals. Some animals are herbivores which feed on plants and take energy from it. Some organisms feed on herbivores are called carnivorous animals. Some animals are omnivores which feed on both plants and animals.
Examples of heterotrophic organisms are cow, lion and human etc.
Answer:
The theory of natural selection, formulated by Darwin, explains how organisms with better characteristics are able to survive and reproduce. According to the theory of Darwin, genetic variations occur among organisms of a species. Those organisms which have better adaptations to survive in the environment are able to survive and pass on their traits to their offsprings. The organisms not having better characteristics are not bale to survive and those traits get completely removed through the process of evolution.
For example, Darwin studies showed that The Galapagos island comprised of 13 different kinds of finches on different islands. The main difference between these finches was their beaks. The differences in the beaks occurred due to the different modes of nutrition in the finches of different islands.
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Answer:</h2>
<u>Oxygen</u> is breathed and <u>carbon dioxide</u> is expired during respiration process.
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Explanation:</h2>
In physiology, respiration is the development of oxygen from the outside condition to the cells inside tissues, and the emission of carbon dioxide to the outer environment.
The physiological meaning of respiration varies from the biochemical definition, which alludes to a metabolic procedure by which a creature acquires vitality (as ATP and NADPH) by oxidizing supplements and discharging waste items.
Cell respiration occurs in individual cells of life form, while physiologic respiration concerns dissemination and transport of metabolic products between the living being and the outer condition.
Answer:
Model 2 is not provided in the question. In the nervous system, the sodium-potassium pump maintain a membrane potential across the plasma membrane, with the inside of the cell negative and the outside positive. This is called resting potential, and in this case Sodium is more concentrated in the outside of the cell and Potassium is more concentrated in the inside of the cell.
Explanation:
Neurons are the cells of the nervous system that are excitable, with the capacity of generate and transmit electrical signals known as nerve impulses or action potentials. Neurons have an extension called axon that allow to conduct the action long distances.
During the resting potential, the antiporter enzyme called sodium-potassium pump expels sodium outside the cell exchanging them for potassium using ATP.
An action potential is generated when an stimulus opens ion channels that permit the income of Sodium, changing the voltage in the inside of the cell and opening more voltage-gated Na and K channels. In this process, a flow of electric current is transmitted along the axon of the neuron.
Answer;
-Glucose
Glucose is the most common monomer for polysaccharides, it is a monosaccharide or a simple sugar.
Explanation;
-Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. Three important polysaccharides, starch, glycogen, and cellulose, are composed of glucose. Starch and glycogen serve as short-term energy stores in plants and animals, respectively. The glucose monomers are linked by α glycosidic bonds.
-Starch (a polymer of glucose) is used as a storage polysaccharide in plants, being found in the form of both amylose and the branched amylopectin. Glycogen is a similar glucose polymer that is more densely branched.