Answer:
Margulis theorized that eukaryotic cells (cells with nuclei) evolved from a symbiosis of bacteria without nuclei that had previously lived independently. ... This serial endosymbiotic theory, or SET, gave a new view of evolution and helped explain the origin of cells with nuclei.21-Oct-2008
Works written: Origin of Eukaryotic Cells, Symbiosis in Cell Evolution, Microcosmos ...
Professions: biologist, scientists
Spouse: Carl Sagan
Explanation:
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Answer:
Then it hits the lens and then the retina
Explanation: The light that is let in decides the size of the pupil
There are choices for this question namely:
Carvedilol
Betaxolol
Acebutolol
Propranolol
Metoprolol
The correct answers are "betaxolol", "acebutolol",and "metoprolol". These drugs are from the class called beta blockers as they inhibition the action of beta receptors in the heart leading to a decrease in heart rate and blood pressure. There are also beta receptors in the bronchial tree, an inhibition of which will lead to bronchoconstriction.
Betaxolol, acebutolol, and metoprolol are cardioselective beta blockers and only blocks the beta receptors located in the heart. Carvedilol and propranolol are non-selective beta blockers that can cause bronchoconstriction which is contraindicated in patients with asthma.
Answer:
Subduction zones are plate tectonic boundaries where two plates converge, and one plate is thrust beneath the other. This process results in geohazards, such as earthquakes and volcanoes.
