Answer:
<h2>C. A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.</h2>
Explanation:
Cardiac output: The volume of blood the heart pumps via the circulatory system per minute is known as cardiac output.
Stroke volume : The volume of blood ejected by the left ventricle in one contraction is called or known as stroke volume and it with heart rate defines the cardiac output.
Cardiac output, is : A slow heart rate increases end diastolic volume, stroke volume, and force of contraction.
Diffusion is the movement of the molecule (in gaseous form) from a region of high concentration to a region of low concentration until equilibrium is achieved. The movement of these molecules is always down the gradient and the movement of the molecules is stochastic
Endocytosis is the uptake of large molecule, that can't pass through the pores of the cell membrane, by a cell. It involves the invagination of the cell membrane engulfing the materials and budding off into a vesicle. The materials are therefore internalized and are transported into the cell.
Exocytosis is the reverse of endocytosis. The material comes from inside of the cell and carried in a vesicle. The vesicle binds with the cell membrane and the part in contact with the cell membrane diffuses off. The contents of the vesicle are therefore emptied outside of the cell.
Phagocytosis is the ingestion of an organism such as bacteria by another cell such as a phagocytic immune cell or amoeba. The process of phagocytosis is similar to that of endocytosis. However, this process is aided by cell membrane receptors on the surface of the phagocyte that recognizes and binds the epitopes of the bacteria.
Osmotic pressure is the bare minimum pressure required to be exerted to prevent the movement of water, by osmosis, from a low concentrated solution to a higher concentrated solution through a semipermeable membrane.
The correct answer is fat-soluble vitamins.
The fat-soluble vitamins are soluble in lipids and usually absorbed as fat globules (chylomicrons). They are absorbed via the lymphatic system of the small intestines and then transported into the blood circulation within the body.
Vitamin A (retinol) has an<span> important role in maintaining healthy vision</span>.
Vitamin D (cholecalciferol) is important for bone health and development and it is produced naturally in the human body when the skin is exposed to the sun.
Vitamin E (tocopherol) is an antioxidant that can help the body destroy free radicals.
Vitamin K (phylloquinone) has a role in forming the blood clots<span>.</span>
Answer:
2) disruptive selection
Explanation:
Disruptive selection is a type of natural selection that acts against less fit heterozygotes. The disruptive selection can be represented by a decrease in the variance of a trait. In this case, the disruptive selection eliminates the medium-sized beaks, thereby favoring the extreme phenotypes in an interbreeding population.
Answer:
All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to cells. ... Also unlike bacteria, most viruses do cause disease, and they're quite specific about the cells they attack.
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