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Usimov [2.4K]
3 years ago
7

20 points!!!!!!!!!!!!!!

Biology
1 answer:
Gre4nikov [31]3 years ago
6 0

Explanation:

Option A is correct, the other options are merely about positions of the animal to an object

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DNA is double stranded due to interactions between adenine, cytosine, guanine, and thymine, which are
WARRIOR [948]

Answer;

Complementary base pairs;

- Adenine-Thyamine and Guanine-Cytosine (A-T and G-C)

Explanation;

-According to Chargaf's rule, the secondary structure of the DNA requires that every guanine pairs with a cytosine and every thymine pairs with an adenine, resulting in consistent ratios between the nucleotides.

-In double-stranded DNA, two long molecules twist around one another in a double helix.  Pairs of nitrogenous bases are set in the same plane, and interact with each other via hydrogen bonding. These pairs are often referred to as base pairs

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3 years ago
People living in and around the Amazon rain forest
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Destruction of the forest results in the disappearance of the species in this forest, which might not be found in other forests. This means that some species will become extinct. Extinction of species leads to reduction of biodiversity - the correct answer is the first one: forest destruction will  <span> reduce biodiversity and remove organisms with the potential to help humans</span>
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Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited. W
Volgvan
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
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3 years ago
Which of the following statement(s) is/are true of the kidney? A. Each kidney is approximately the same size as an adult’s fist.
vladimir1956 [14]

Answer: Option E.

A,B and C are correct.

Explanation:

Kidney is a bean shaped organ normally found in vertebrates. It is located posterior to the abdominal peritoneum. Kidney is well protected by ribs 10-12 , abdominal muscles, back muscles .kidney is about 11cm in length in adults. Kidney receives blood from the arteries and exist blood through the veins. Each kidney is attached to a ureter which harbour and carries urine to the bladder .Each kidney is approximately the same size as adult clenched fist(10cm). The main function of the kidney is excretion of wastes and urine.

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3 years ago
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denis-greek [22]
Answer: D - Eukaryotic

Explanation: Can not be A, B or C

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- Bacterial cells are prokaryotes and unicellular
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4 0
3 years ago
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