To calculate the dosage of a drug given in mg/kg for a person, multiply the dosing rate by the person's mass. In this case, the dosing rate is 50 mg/kg and the mass of the person is 50 kg, yielding a total dosage of 2,500 mg.
When administering a drug with a dosing rate that is given in mg/kg, you need to multiply the dosing rate by the patient's mass to determine the proper dosage. In this case, we use the formula:
Dose = Dosing rate × mass
Substituting the given values into the formula:
Dose = 50 mg/kg × 50 kg, which equals to 2,500 mg.
Therefore, you need to administer 2,500 mg of the drug to the patient.
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a cell wall
B.
a plasma membrane
C.
genetic material
D.
cytoplasm
A border that exists outside the plasma membrane or cell membrane is the cell wall. It only exists in plant cells and is composed of cellulose. In a cell of an animal, it is absent. Thus, option A is correct.
Plant cells have a cell wall that surrounds their plasma membrane and offers tensile strength as well as defense against osmotic and mechanical stress.
Additionally, it enables the development of turgor pressure, or the pressure of the contents of the cell against the cellwall.
Animals lack cell walls, but most other eukaryotes, such as algae, fungus, and plants, as well as most prokaryotes, do (except few bacteria).
Serving as pressure channels, they prevent the cell from over expanding when water enters, which is one of their main roles.
Therefore, cell wall is not present in all organism.
Learn more about cell wall here:
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extinction would lead to the extinction of other forms of life. A keystone species helps to
support the ecosystem of which it is a part.
An example of what can happen when a keystone species is removed occurred when fur
hunters eliminated sea otters from some Pacific Ocean kelp beds. Otters eat sea urchins,
which eat kelp. With its major predator gone, sea urchin populations exploded and
consumed most of the kelp. Fish, snails, and other animals associated with the kelp beds
disappeared.
The grizzly bear is another example of a keystone species. Grizzlies transfer nutrients
from the ocean ecosystem to the forest ecosystem. The first stage of this transfer is
performed by salmon that swim up rivers, sometimes for hundreds of miles. Salmon are rich
in nitrogen, sulfur, carbon, and phosphorus. The bears capture the salmon and carry them
onto dry land, scattering nutrient-rich feces (wastes) and partially eaten salmon carcasses.
It has been estimated that the bears leave up to half of the salmon they harvest on the
forest floor.
Which sequence best represents the feeding relationships in a kelp ecosystem that has not been disturbed
by humans?
(1) sea urchins → kelp → fish (3) kelp → sea otters → sea urchins
(2) kelp → sea urchins → sea otters (4) sea urchins → snails → kelp
The correct sequence displaying the feeding relationships in an undisturbed kelp ecosystem is: kelp → sea urchins → sea otters. Kelp serves as a food source for sea urchins, which in turn are consumed by sea otters.
The sequence that best represents the feeding relationships in a kelp ecosystem that has not been disturbed by humans is (2) kelp → sea urchins → sea otters. In an undisturbed ecosystem, the kelp, being a producer, forms the base of the food chain. Secondly, the sea urchins, as primary consumers, feed directly on the kelp. And finally, the sea otters are secondary consumers that prey on the sea urchins, maintaining the balance in the ecosystem.
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Microscope are the important tools which are used by scientist. For example, in material science, medicine, mineralogy and microbiology.
Light microscope is able to send light. Light is being focused in a tight breath whereby that light passes through a sample which later it is able to create an image. This image passes to different lenses which magnifies it until it reaches the camera.
There are different types of microscope for example, Compound light microscope, Simple light microscope, and monocular microscope.
In simple light microscope only one lens which which is being used to magnify an object and it is not able to reach to a higher magnification.
In compound light microscope it uses two lenses to produce image. For example eyepiece lens and objective lens.
Answer:
We learned how to prepare the object, how to focus the object, and how to correctly put the microscope away safely. It taught me that you have to start with the smallest magnification on the microscope and then after you have the specimen lined up then you can turn the nose piece to a larger magnification to get a closer look on the specimen.
Explanation:
Answer:
Etowah Indian Mounds
Explanation:
Etowah Indian Mounds are a 54-acre archaeological site in Bartow County, Georgia and is considered as the second credible most Indian mound in Mississippi.
It mainly has three platform mounds and three lesser mounds. The tallest mound is called The Temple Mounds which is 63 feet high, taller than a six-story building,
The artefacts that have been explored from the Etowah site reflect that is people had deep interest in art and cultural advancement. Some cooper tools and ornaments have been discovered that support this stance
Answer:
Etowah Indian Mounds
Explanation:
Etowah Indian Mounds states historic site is the most intact, whole complete, undamaged and unbroken site in the South East of the Mississippi. This site was the home of thousands of Native Americans between 1000 AD to 1550AD. This site is a site of 54 acres in size, it protects six earthen mounds, village site, a plaza, defensive ditch and borrow pits. The site is a classified National Historic Landmark and it is managed by Georgia Department of natural resources.