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yawa3891 [41]
3 years ago
7

Who is credited whit creating the first Accurate model of dna

Biology
2 answers:
lesya692 [45]3 years ago
5 0
Your answer will be C
kramer3 years ago
3 0

Answer:

James Watson and Francis crick is the ones who is credited with creating the first Accurate model of DNA. So your answer would be option " c."

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Which part of the cell membrane prevents the cell from dissolving in water?
tia_tia [17]

The correct answer is:  the   " phospholipid bilayer "  .

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             →   { which is hydrophobic (water-repellent) due to its waxy-like composition of many lipids.}.

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7 0
3 years ago
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Jason has five equally massed lead fishing weights, each weighing 250 grams. What is the total mass of the five lead fishing wei
algol [13]

Answer:

1250 g=1.25 Kg

Explanation:

We are given that Jason has five fishes of equally massed lead fish weights.

Weigh of each fish =250 grams

We have to find the value of total mass of the five lead fishing weights

Total number of fishes=5

In order to find the total mass we will use unitary method

Total mass is obtained by multiplying the total number of fishes with weight of one fish

Total mass=5\times 250

Total mass of five fishes=1250 g

1 kg =1000g

Then 1250 g=\frac{1250}{1000}=1.25 Kg

Hence, total mass of five lead fishing weights=1250 g=1.25 Kg

3 0
2 years ago
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How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrus
ad-work [718]

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

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2 years ago
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thyroxine can trigger growth, temperature tolerance, or osmoregulation depending on the organism in which it is produced. which
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The primary hormone that the thyroid gland releases into the bloodstream is thyroxine. It is the inactive form, and organs like the liver and kidneys convert the majority of it into the active form triiodothyronine.

The body's metabolism, cardiac and digestive processes, muscle control, brain growth, and bone maintenance are all significantly regulated by thyroid hormones.

Hypothyroidism refers to the thyroid gland producing too little thyroxine. It could be brought on by autoimmune conditions, inadequate iodine consumption, or the use of specific medications. Sometimes there is no known cause. Untreated throxine before birth or during infancy can result in mental disability and stunted growth because thyroid hormones are crucial for both physical and mental development.

Adult hypothyroidism results in a slower metabolism. It may cause symptoms like weariness, a diminished ability to tolerate cold conditions, a low heart rate, weight gain, decreased appetite, impaired memory, sadness, muscle stiffness, and decreased fertility. For further details, read the article on hypothyroidism.

To learn more about thyroxine, refer: brainly.com/question/15557539

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3 0
1 year ago
What is the definition of dorsal
Semmy [17]

Dorsal means back as in the back area. Example~  Many dolphins have a pronounced beak and all have a central dorsal fin and sharp teeth for feeding, mainly on squid and fish.
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3 years ago
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