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3 years ago

Circulatory systems compensate for _____.

Biology

1 answer:

Ainat [17]3 years ago

8 0

Answer:

The slow rate at which diffusion occurs over large distances.

Explanation:

Circulatory system may be defined as one of the most important system of the body that contains arteries and veins. Two main types of circulatory system are open circulatory system and closed circulatory system.

The blood flow all over the body to each cell with the help of the circulatory system. Arteries carry oxygenated blood and veins carry deoxygenated blood in the body. The circulatory system increases the rate of blood flow as diffusion do not allow the transport at long distances.

Thus, the correct answer is option (c).

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Which of the following is a characteristic of the tidal region of an ocean

Lubov Fominskaja [6]

The defining characteristic of the intertidal zone is that it is submerged with water during high tide and exposed to the air during low tide. The zone can take many forms, from sandy beaches to rocky cliffs. It is common for the intertidal zone to change frequently, since it is constantly battered by crashing waves.
Hope this helped.

5 0

3 years ago

What atmospheric condition caused London's "killer smog of 1952 and regularly causes smog

wariber [46]

Answer:

London smog results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal. This type of smog is aggravated by dampness and a high concentration of delayed particulate matter in the air.

Explanation:

So, the answer would be B or D.

But, it is most likely B due to dampness.

4 0

2 years ago

In the 1950's, a young woman sued film star/director Charlie Chaplin for parental support of her illegitimate child. Charlie Cha

astraxan [27]

Complete question:

17. In the 1950’s a young woman sued film star/director Charlie Chaplin for parental support of her illegitimate child. Charlie Chaplin’s blood type was already on record as type AB. The mother of the child had type A (AO) and her son had type O blood (OO).

a. Complete a Punnett square for the possible cross of Charlie and the mother.

b. The judge ruled in favor of the mother and ordered Charlie Chaplin to pay child support costs of the child. Was the judge correct in his decision based on blood typing evidence? Explain why or why not. *refer to any Punnett squares to support your answer.

Answer:

The judge committed a mistake in his decision. There are <u>no chances</u> for this couple to have a child who has 0 blood type.

Explanation:

<u>Available data:</u>

Charlie Chaplin’s blood type was AB
The mother of the child had type A (AO)
The son had type O blood (OO).

Cross: Charlie Chaplin x The Woman

Parental) IAIB x IAi

Gametes) IA IB IA i

Punnett square) IA IB

IA IAIA IAIB

i IAi IBi

F1) 1/4 = 25% of the progeny would have IAIA genotype, blood type A

1/4 = 25% of the progeny would have IAi genotype, blood type A

1/4 = 25% of the progeny would have IAIB genotype, blood type AB

1/4 = 25% of the progeny wouldl have IBi genotype, blood type B

According to the results of the cross observed in the Punnett square, there are no chances for this couple to have a child who has 0 blood type.

Blood type 0 can only be produced by two recessive alleles i, one inherited from each parent. The mother could provide the recessive allele because she is IBi, but Chaplin could not pass to his progeny any recessive allele.

The judge committed a mistake in his decision.

6 0

2 years ago

In the complete oxidation of glucose, six CO2 molecules are formed per glucose molecule. The number of CO2 molecules released by

Serga [27]

Answer:

0, 2, 4

Explanation:

The process of cellular respiration takes place in for phases which oxidizes the glucose molecule to the provide energy molecule called ATP.

Along with ATP, the process releases the metabolic water and carbon dioxide gas. In the oxidation of one glucose molecules, about 6 molecules of CO₂ are released. These CO₂ molecules are produced in the following manner:

1. Glycolysis: CO₂ gas is not produced during this reaction but only ATP and NADH are produced.

2. Pyruvate decarboxylation: the process converts the pyruvate produced by glycolysis to Acetyl-CoA. Formation of 1 Acetyl-CoA produces 1 CO₂ and since 2 Acetyl-CoA is produced therefore produces 2 CO₂ molecules.

3. Citric acid cycle: The cycle converts 2 Acetyl-CoA and produces 4 CO₂ in two cycles converting each Acetyl-CoA.

Thus, 0, 2, 4 is correct.

7 0

3 years ago

what is the correct order of steps in a gram staining procedure? 1. iodine is added as a fixative or mordant. 2. the specimen is

Setler79 [48]

The correct order of steps in a gram staining procedure is:

(4) the specimen is treated with a stain called crystal violet.

(1) iodine is added as a fixative or mordant.

(3) the specimen is flushed with alcohol to dehydrate peptidoglycans and trap the stain.

(2) the specimen is treated with a stain such as safranin or fuchsin (a pink stain)

Gram staining is a common staining technique which helps to classify the bacteria into two categories: Gram positive and Gram negative. Gram positive bacteria appear violet in color and Gram negative bacteria appear to be pink. This color difference appears due to the difference in the bacterial cell walls.

To know more about Gram staining, here

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5 0

9 months ago