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Otrada [13]
4 years ago
9

Why do you think it took almost two centuries after cells were discovered for scientists to formulate the cell theory?

Biology
1 answer:
Nikolay [14]4 years ago
5 0

Answer:

Early scientists didn't have any tools to observe them.

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Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Inte
Ainat [17]

Answer:

Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg Capillary colloid osmotic pressure (OPc) = 25 mmHg Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg. The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

Explanation:

  • Data:

Capillary hydrostatic pressure (HPc) = 30 mmHg

Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg

Capillary colloid osmotic pressure (OPc) = 25 mmHg

Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg

  • Formula Applied :

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient

Hydrostatic pressure gradient = Capillary hydrostatic pressure - Interstitial hydrostatic pressure = 30mmHg - 0 mmHg = 30 mmHg

Oncotic pressure gradient =  Capillary colloid osmotic pressure - Interstitial fluid colloid osmotic pressure =25  - 2 = 23 mmHg

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient = 30 mmHg - 23 mmHg = 7 mmHg.

Hence, The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

3 0
3 years ago
Select all that apply. Which of the following are not properties of proteins?
Leona [35]

Answer:

The correct answer is C: Derived from oils and the fat of meat

Explanation:

Amino acids are the building blocks of proteins. Each amino acid is composed of a monomer, and these monomers join together to form a complex molecule called polypeptides.

For example, hemoglobin is an oxygen-carrying protein in the red blood cells. It is a globular protein and is made up of two polypeptide sub units. It consists of two alpha and two bets chains.

Proteins are rich energy units and there are different sources of proteins such as beans, pulses, seeds, nuts, milk, and yogurt, etc.

3 0
3 years ago
Many seeds are capable of surviving in a dormant or quiescent state for many years, or even centuries. Such seeds are not usuall
tankabanditka [31]

Answer:

holasoy km no se la  es

Explanation:

5 0
3 years ago
Ureterectasis is the __________ of a ureter.
Flauer [41]

The answer is dilation or expansion. It is because ureterectasis is a process of which the ureter of an individual is being stretch out that is why it is being referred to as dilation or an expansion of the area.

8 0
3 years ago
A student claims that if the animal producing the spermatozoa has a mutation in a mitochondrial gene, the probability that any o
galina1969 [7]

Answer:

The student is wrong, spermatozoa are germinal cells and therefore mitochondrial mutations (likewise genomic nuclear mutations) are inherited by offspring

Explanation:

Although the probabilities of inheriting a mutation from a single sperm cell are low, it since an organism produces millions of sperm cells throughout its life span, the mutations in the germinal cells (i.e., sperms and ovules) are inherited by offspring

3 0
3 years ago
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