Fossil fuels are formed naturally beneath the surface of the earth. humans use fossil fuels as energy sources. which choice is NOT a fossil fuel?A) oil
B) coal
C) natural gas
D) uranium ore

Answers

Answer 1
Answer: The correct answer is D) uranium ore

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What is not contained in our blood?A. Blood Plasma B. Leukoctyes C. ErythrocytesD. Lymph
What enzyme splits the hydrogen bonds?
Approximately 99% of the microbes in the intestines are obligate anaerobes. We have plenty of blood vessels that can bring oxygen to the tissues of the intestines. Why would there be obligate anaerobes within these areas? A. The bacteria in the intestines are protected from exposure to the oxygen in the tissues by the lining of the intestines. B. The bacteria consume all the oxygen in the tissue areas brought by the blood vessels, creating an anaerobic environment. C. While the blood vessels supply oxygen to the tissues of the intestines, the inner area where the bacteria reside is NOT supplied with blood/oxygen. Since it's deep within our bodies, there's no chance for oxygen to get into these inner areas of the intestinal tube, creating a highly anaerobic environment. D. The aerobic microbes are outcompeted for nutrients in these areas by the anaerobic microbes.
Which of the following features is not universally accepted as a sign of physical attractiveness? A. facial symmetry B. a curvy figure C. average body type D. average features Please select the best answer from the choices provided A B C D
"If the frequency of an allele in a population is 0.999, what is the expected frequency of homozygotes for this allele in a population at Hardy-Weinberg Equilibrium? (please give your answer to three decimal places)"

Bacteria and fungi are found in all ecosystems on earth answer

Answers

The answer is; true

These microbes are usually adapted to their environment and this is why they are found in virtually all ecosystems. You will find bacteria even at the bottom of deep ocean beds deep and in geothermal vents, hypersaline water and very cold regions (such as polar regions).  Fungi which vary widely in size from microscopically small to the largest organisms such as mushrooms are also found in virtually all environments on earth. They are nonetheless different species of these groups adapted to their environments.


PLEASEEE HELP! Which method involves using tools to control invasive species?

a. Mechanical
b. Chemical
c. Manual
d. Monitoring

Answers

Answer:

A. Mechanical

Explanation:

Answer:

sorry if i get this wrong d. Monitoring

Which statements describe the characteristics of an individual protein? Select two options. It is specific to one biochemical reaction. It increases the activation energy needed for a reaction. It can catalyze many different reactions. It increases the rate of a biochemical reaction. It slows down the rate of a biochemical reaction.

Answers

The branch of science which deals with chemistry uses in biology is called biochemistry.

The correct option to the question is A and D

The digestion of protein requires the enzyme which catalyzes the reactant and speeds up the reaction by decreasing the activation energy. According to this concept, option B is wrong.

The protein molecule has an active binding site that is specific to each protein. Each protein has a specific type of enzyme that catalyzes the reaction. Hence option C is also wrong.

Hence, the correct option is A and C that is an It is specific to one biochemical reaction and It slow down the rate of a biochemical reaction.

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Answer: . It is specific to one biochemical reaction

It increases the rate of a biochemical reaction.

Explanation:

Protein acts as enzymes and are useful in reactions that occurs in the cell as a catalyst.

Enzymes are characterized by speeding up the rate of chemical reactions without destroying themselves or disturbing equilibrium that occurs between the reactant and the product. Individual protein are specific to a particular reaction and are good catalyst of chemical reaction as they help to speed up reactions.

In DNA, what base pairs with cytosine? adenine cytosine guanine thymine In DNA, what base pairs with guanine? adenine cytosine guanine thymine

Answers

In DNA, guanine pairs with cytosine with the help of triple bonds.

What do you mean by DNA?

DNA stands for deoxyribonucleic acid. It is the genetic material of most living organisms. It carries genetic information as well.

In DNA, cytosine pairs with guanine with the help of the same triple bonds.

In DNA, each base pair binds to its complementary base pairs with the help of two or three hydrogen bonds.

It is the principle of the Chargaff's rule.  

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Answer:

Your Answer is Guanine

Explanation:

In the article: Definition of base pair - NCI Dictionary of Cancer Terms, it states, that DNA base pair. Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

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If osteoclasts are more active than osteoblasts, bones will become:_______ A. Denser.
B. Thicker.
C. Osteopenic.
D. Stronger.
E. Calcified

Answers

If osteoclasts are more active than osteoblasts, bones will become - C. Osteopenic.

Osteoblasts which synthesize the bone matrix and coordinate the mineralization and osteoclasts which are responsible for the dissolution and absorption of bone; are two major types of cells present in bones.

  • Osteoblasts are defined as bone-forming cells that help in bone mineralization.
  • Osteoclasts are responsible for bone resorption and cause the breakdown of bones.
  • Osteopenia is a condition that begins as you lose bone mass and your bones get weaker.
  • A person with osteopenic has slightly less dense bones than normal

Thus, If osteoclasts are more active than osteoblasts, bones will become - C. Osteopenic.

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Answer:

The answer is C) osteopenic

Benedict’s solution is an alkaline copper sulfate solution which is used to detect the presence of aldehyde groups. In the presence of Benedict’s solution, the aldehyde group is oxidized and the aqueous blue Cu2+ ion is reduced to a red Cu2O precipitate. Sugars such as glucose, which produce the red precipitate when Benedict’s solution is added, are called reducing sugars because they can reduce Cu2+ to Cu+. Which of the following carbohydrates would give a positive reaction with Benedict’s reagent? a. galactose; b. sorbitol (see below); c. β-ethylglucoside; d. gluconate .

Answers

Answer:

Galactose

Explanation:

Galactose is a sugar with six carbons and one aldehyde group present at the end. The presence of a free aldehyde group in galactose makes it a reducing sugar. Galactose can reduce the Cu2+ of Benedict solution into Cu+ and produce a red precipitate.  Sorbitol, β-ethylglucoside, and gluconate do not have aldehyde group to reduce Cu2+ ions and therefore, do not give the positive test with Benedict solution.