In _____________ selection, individuals with both extreme forms of a trait are at a selective advantage.

Answers

Answer 1
Answer:

Answer:

disruptive/diversifying selection  

Explanation:

Disruptive (also known as diversifying) selection is a type of natural selection where extreme phenotypic values are more favored rather than intermediate phenotypes. The disruptive selection favors the survivance and reproduction of organisms with extreme phenotypic traits, and in turn impairs the reproduction of organisms with intermediate traits, thereby changing the allele frequencies in the population in order to favor extreme values. An example of disruptive selection is the beak size of Galapagos finches, where extreme phenotypes of this trait have shown to be adaptive according to the type of food found in each island.


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DNA and RNA are both composed of nucleotides. However, RNA has three key differences. Please select thethree items that are unique to RNA. 1.Double stranded 2.Single stranded 3.Contains the nitrogen base Uracil in place of Thymine 4.Backbone contains the sugar ribose 5.Backbone contains the sugar deoxyribose 6.Contains the nitrogen base Thymine in place of Uracil
Which of the following is FALSE regarding the DNA double helix? a. The two strands exhibit complementary base pairing. b. The four nitrogenous bases found in it are A, T, C and G. c. The two strands are parallel. d. The two strands are stabilized by hydrogen bonds and base stacking interactions.
Proteins....A have a primary structure made from a string of anticodons.B. have a primary structure made from a string of codons.C. have a primary structure made of a string of amino acids.D. have a primary structure made from a string of genes.
a. Normal body temperature is 98.6°F. A child is not feeling well, and there is only a Celsius thermometer available. The child's temperature is taken and the thermometer reads 37°C.

What is the meaning of life. And what does death look like.

Answers

Life is a match. Where we are born in the world to be good and righteous. If death is when our lives are powerless. After life we all must die and after death there is Eternal Life, which is the hereafter. If our deeds are right, we will definitely go to heaven. If our actions are evil, it will be hell.

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When does oxyhemoglobin form during respiration? Group of answer choices during internal respiration immediately after carbon dioxide enters the blood when the chloride shift occurs during external respiration

Answers

Answer:

during external respiration

Explanation:

Oxyhemoglobin is a type of hemoglobin carrying oxygen which is bright red in color. In the blood, it's major function is to  carry oxygen molecules throughout the body.

Oxyhemoglobin is formed during external respiration. External respiration also known as breathing occurs in the lung. During external respiration, there is an exchange of oxygen and carbon-dioxide between the cells of the body and blood vessels. During breathing, oxygen diffuses into the blood, the oxygen then binds with heme in the hemoglobin found in erythrocytes to form oxyhemoglobin.

Answer:

during external respiration

Explanation:

Oxyhemoglobin is a protein formed when hemoglobin is combined with an oxygen molecule during lung respiration, also called external respiration. Its function is to transport oxygen throughout the body.

External breathing is performed when we breathe in oxygen into the body. This oxygen will be used for cells to perform cellular respiration that will be responsible for exhaling carbon dioxide out of our body.

Bone does not amplify sound during speaking is _____________________

Answers

Answer:

Bone is a solid tissue, which resists a high impact of forces in its major axis.

The function of this fabric is not to transmit sounds, since it does not provide the elasticity, and the necessary elongation that is needed to generate the rope effect as in the case of muzzle cords.

Explanation:

The more rigid and less elastic the fabric is, the less sound it will transmit.

Sound strings, or mouth strings, are those that tighten, are flexible and resonate with different vibrations, in the case of bone tissue, sound vibrations are not influenced in their conformation because they do not have the ability to transmit them. .

The bone tissue, transmits impact forces or high newton levels, does not fulfill the function of transmitting vibrations and emitting sounds in terms of this type of vibrations and their frequencies.

Is water and its properties important in homeostasis for humans ? explain.

Answers

Answer:

yes its important because...

Explanation:

Water is an essential feature of homeostasis in an organism. Water increases the volume of blood, which affects blood pressure and heart rate. Water dissolves gases and allow for efficient exchange and transport of oxygen and carbon dioxide. Water can be excreted, so it carries toxins that have been made water-soluble out of the body.

Cell structure reflects cell function. Using your knowledge of the functions of particular organelles, select the incorrectmatch of a type of cell and the organelle that might be particularly abundant in that cell:a. Pancreatic cell that secretes a digestive enzyme: Rough endoplasmic reticulumb. Mammalian skin cell: Central vacuolec. Skeletal muscle cell: Mitochondriad. Liver cell that modifies toxins: Smooth endoplasmic reticulume. Leaf cell: Chloroplasts

Answers

Answer:

Option B) Mammalian Skin Cell: Central Vacuole  is incorrect.

Explanation:

Mammalia Skill cell have sweat glands that secrete sweat (composed of water, oil and salts) which help humans as protective layer against bacteria and pathogens.

When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide (H2O2) decomposes into water (H2O) and oxygen (O2) This range change in reaction rate suggeststhat liver is a substrate for hydrogen peroxide

that liver contains lots of germs

the liver contains an enzyme that breaks down hydrogen peroxide

that hydrogen peroxide is a powerful enzyme

Answers

When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide decomposes into water and oxygen. This suggests the liver contains an enzyme that breaks down hydrogen peroxide. Thus, the correct option is C.

What is Catalase?

Catalase is a common enzyme which is found in nearly all living organisms which are exposed to oxygen gas. Catalase is a key enzyme which uses hydrogen peroxide, a nonradical Reactive Oxygen Species, as its substrate. Catalase enzyme is responsible for the neutralization through decomposition of hydrogen peroxide, thereby maintaining an optimum level of the molecule in the cell system which is also essential for the cellular signaling processes.

Catalase is an enzyme which causes or speeds up a reaction without being affected during the reaction. The enzyme catalase speeds up the breakdown of hydrogen peroxide into water and oxygen gas.

Therefore, the correct option is C.

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Answer: C

Explanation:

Catalyst is one enzyme from liver that breaks down harmful hydrogen peroxide into oxygen gas and water