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2 years ago

How are viruses, bacteria, protists, and fungi

Biology

1 answer:

Nutka1998 [239]2 years ago

4 0

Answer:

Viruses are not considered as something that is living, that makes them different from bacteria, protists and fungi. Bacteria are a prokaryote which makes them different from protists and fungi that are eukaryotic. Protists are always unicellular, while fungi can be either unicellular or multicellular (but mostly multicellular). Viruses, bacteria, protists and fungi can all be pathogenic. Viruses, bacteria, protists and fungi. All these are essential for life because they maintain living things, keeping everything in balance - a perfect equilibrium.

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Which of the following is an example of a plant or animal depending on a nonliving thing in its habitat?

ryzh [129]

Answer:

C. Zebras depend on soil to grow grass, which the zebras eat.

give brainliest plz

6 0

2 years ago

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the haematocrit is _______

nordsb [41]

Answer:

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the hematocrit is 41,02% percent. The hematocrit value is within the normal range.

Explanation:

Hello!

Hematocrit (or packed cell volume -PCV-)is defined as the percentage of red blood cells (vol%) in a blood sample. One common method of determining it is by centrifuging a heparinized blood sample in a capillary tube at 10 000 RPM for five minutes. This separates the blood sample in two layers, formed elements (RBC and WBC) and Plasma.

The length of the layers is directly measured from the tube and represents the volume of packed cells and plasma. Since the number of white cells is negligible compared to the number of red cells, the formed elements are considered to represent the red blood cells.

The hematocrit can be calculated as the volume of packed cells divided by the total volume of the blood sample.

$\frac{PCV}{TOTAL(pcv+plasma} * 100$

In the question:

$\frac{32}{32+46} * 100$ = $\frac{32}{78} * 100$ = 41,02%

In humans the normal hematocrit range is 40,7% to 50,3% for men and 36,1% to 44,3%. Taking these reference values into consideration, this sample is within the normal range.

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3 years ago

What are the roles of the axon and dendrite?

erma4kov [3.2K]

The axon, or nerve fiber, is an extension of the neuron that drives the electrical signal from the cell body to the synaptic zones. Along the axon, this signal consists of action potentials.

The other extensions of the neuron are the dendrites that lead the signal from the synapses to the cell body (to be then driven to the axon). The neurons most often have a single axon and several dendrites (the influx can come from several directions, or several dendrites, but always converge towards the axon).

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2 years ago

In what layer of the earth are fossils found?

Vadim26 [7]

Fossils can be found in the Earth's crust.

The crust is the thinnest layer of the Earth. The fossils are most probably be found in this layer because it is the outermost layer. Also, the deeper the layer of the Earth, the higher the temperature that it has, and it probably cannot preserve the fossil.

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11 months ago

You have your .5 M sucrose solution. You need 1 L of a 50 mM solution. how much of the .5 M stock solution would you combine wit

Triss [41]

Answer: 100mL sucrose solution and 900mL water

Explanation: sucrose solution is 500 mM, i.e. 500mmol/L

water is 0mmol/L

To get 50mmol/L we need 1/10 L of sucrose solution = 100mL

and made up to 1L with water

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2 years ago