Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants through tiny openings in the plant's leaves. Oxygen moves out of the plant leaf through these same openings.
Answer:
Option-A
Explanation:
The nervous system which is activated during stress condition is known as the sympathetic nervous system.
The sympathetic system produces the response to fight or flight in the body. The body releases hormones during stress condition which are the epinephrine and the cortisol. Both the hormones are produced from the adrenal gland.
In the given question, since the person is in stressed condition but she is still fighting therefore the stress hormones are produced in large amount and the main hormones are the epinephrine and cortisol.
Thus, Option-A is correct.
B. Logistic growth <span>relates to this observation.
</span>Logistic<span> population </span>growth<span> occurs when the </span>growth <span>rate decreases as the population reaches carrying capacity.</span><span>
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Answer:B.) Substitution
Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA molecule. Substitution leads to a point mutation if only one nucleotide is replaced by another.
A substitution mutation occurs when one or more nucleotides in a DNA sequence is replaced by another nucleotide.
Example of substitution is in sickle cell hemoglobin in which valine replaces glutamate at position six in the two beta chains of hemoglobin. In a normal hemoglobin, the two beta chains of hemoglobin have glutamate at the sixth position but in a sickle cell hemoglobin, valine is found at position six on the two beta chains. This is also an example of a point mutation.
Answer:
Explanation:
cough or expectoration Breathing may be assisted by pursed lips and use of accessory respiratory muscles; patients may adopt the tripod sitting position The chest may be hyperresonant.
coughing can also cause Presentation Symptoms sudden-onset, unilateral, pleuritic chest pain dyspnea acute respiratory distress Physical exam decreased or absent breath sounds hyperresonance
appearances may be normal Sweating, tachypnoea, tachycardia (most common finding) Splinting of the chest wall to relieve pleuritic pain Decreased or absent breath sounds Hyperresonance
