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kenny6666 [7]
3 years ago
15

How does the oil from the liver provide limited buoyancy in the absence of a swim bladder

Biology
1 answer:
Delvig [45]3 years ago
8 0
Unlike fish, which have a gas-filled swim bladder that keeps them afloat in the water, sharks rely upon a huge, oily liver to provide some buoyancy. The oil in the liver is lighter than water and gives the shark some buoyancy, but it is still heavier than water and will sink if it dos not actively swim.
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The dna content for an organism is analyzed. The results showed that 21% of the nucleotides contained the nitrogenous base adeni
Serjik [45]

If the results show that 21% of the nucleotides contain adenine, then the cytosine fraction in vivo is 29% and the thymine fraction is also 21% (options A and C).

<h3>Define double helix model of DNA?</h3>
  1. DNA is a double helix molecule made up of two long strands of nucleotides.
  2. There are four types of nucleotides in DNA, each containing a different nitrogenous base: adenine, guanine, thymine, cytosine.
  3. Adenine always pairs with thymine and guanine pairs with cytosine, according to the base-pairing rules.
  4. As a result, the percentage of adenine equals the percentage of thymine, and the remaining percentage equals guanine + cytosine (29 + 29 = 58 >> 58 + 21 + 21 = 100).
  5. Therefore, if the results show that 21% of the nucleotides contain adenine, then the percentage of cytosine in vivo is 29% and the percentage of thymine is also 21%

To know more about double helix model of DNA, visit:

brainly.com/question/3789581

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The complete question is as follows:

The DNA content for an organism is analyzed. The results showed that 21% of the nucleotides contained the nitrogenous base adenine. What else can be inferred based on this data? Select all that apply

A) The percentage of cytosine is 29%.

B) The percentage of adenine is 21% for all organisms.

C) The percentage of thymine in the organism is also 21%.

D) The percentage of guanine in the organism is also 21%.

E) The percentage for cytosine in the organism is also 21%.

4 0
1 year ago
Explain how both the digestive system and the urinary system work to conserve water in the human body.
Ghella [55]
Everything that we eat and drink contains some percentage of water. So, to start, you have to know that the human body has receptors which estimate if we have enough water in our blood and cells in general. From these receptors, the information travels through the neurons to the part of the brain that is responsible for activation of different responses. 

The digestive system is important because in its lower parts, liquids are absorbed and inserted in the bloodstream. Then through the bloodstream, they travel to all parts of the body and are absorbed by cells as needed. When blood passes through the body, it gets to the kidneys where water and electrolytes are filtered, reabsorbed if needed and excreted through the urine. 

Now, if the brain has a signal that the body has a lack of liquids, it activates hormones which influence the bloodstream in both the digestive and the urinary system. In this case, the digestive system will absorb more liquids from food because the hormones will make the blood vessels in the digestive area larger, and on the other hand, we will produce less urine because the kidneys will get an assignment from the brain to filter liquids, but to reabsorb them again as much as possible. 
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although a fetus is relatively protected in the mothers womb a number of different toxins can harm the fetus
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Yes ur eight but there r certain products that can heurt the fetus
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What would be an immediate effect of the construction of roads and parking lots on the transfer of energy from producers to cons
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Identify one hormone present in a female that is involved in regulating the reproductive cycle? ​
ioda

Answer: The hormones controlling the female reproductive system include gonadotropin-releasing hormone (GnRH), follicle-stimulating hormone (FSH) and leutenizing hormone (LH), all of which are produced in the brain; oestrogen and progesterone produced by the ovaries and the corpus luteum; and human chorionic gonadotropin (HCG

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