How can traits affect fitness and how
can natural selection change the
presence of certain alleles over time?

Answer: D) A and B only

Explanation:

Centrosomes and Ribosomes are both present in the animal cell with both of them having different roles. Centrosomes have roles in cell divisions as they maintain chromosome number during the process and Ribosomes are in charge of the synthetization of proteins.

These two share a role together which is that they are both needed by the cell in order to form either cilia or flagella.

Answer:

A cell cycle is a series of events that takes place in a cell as it grows and divides.

OMG THERE'S SO MANY ill make sure to come back at dis and edit

Answer: Recombinant human growth hormone

Explanation:

Recombinant human growth hormone can be prepared by combining the gene responsible for production of hormone can be inserted into the bacterial plasmid and then a recombinant DNA forms the bacteria is allowed to be grown in cultures. Then the cultured volume can be exploited to obtain the growth hormone for therapeutic purpose.

Answer:

B density

Explanation:

Answer:

its B

Explanation:

Answer:

A aerobic is the answer

Explanation:

I took the test

Answer:

strong

Explanation:

Answer:

The cells that make up the phloem are adapted to their function. Each sieve tube has a perforated end so its cytoplasm connects one cell to the next Companion cells. transport of substances in the phloem requires energy. One or more companion cells attached to each sieve tube provide this energy.

Explanation:

Answer:

1. The pathway of a red blood cell from the right ventricle to the brain is:

Right ventricle → pulmonary arteries → lungs → pulmonary veins → left atrium → left ventricle → artery aorta → arterial vessels → brain .

2. The substance that forms hemoglobin in red blood cells when it passes through the lungs is oxyhemoglobin.

Explanation:

Red blood cells are structures present in the blood, whose function is to transport oxygen (O₂) and carbon dioxide (CO₂). This process requires travel throughout the body, through the blood vessels, and gas exchange at the pulmonary and tissue level.

1. A red blood cell in the right ventricle contains carbon dioxide and must pass to the lungs to be oxygenated. The route it takes from there includes Right ventricle (minor circulation) → pulmonary arteries → lungs → pulmonary veins → left atrium → left ventricle → (joining the major circulation) artery aorta → arterial vessels → brain .

2. The red blood cell or erythrocyte contains a molecule, called hemoglobin, which has an iron core that allows it to bind to O₂ and CO₂ in order to transport them. The affinity for one molecule or another depends on the presence of a certain gas in a certain place.

When the red blood cell passes through the lungs, the concentration of O₂ is higher than CO₂, so the latter is released and O₂ binds to hemoglobin, a conjugation that is called oxyhemoglobin.

Answer:

Newton meter, clocks/watches, tape measure or a ruler, thermometer

Explanation:

Answer:

R.I.P Naruto

Explanation:

Newton meter, clocks/watches, tape measure or a ruler, thermometer

Answer:

Proteins range in molecular weight from 1000 to more than 1 million daltons (Da), but the folded size of a globular protein is not necessary correlated to its molecular weight. Proteins composed of about 250 amino acids or less often have a simple, compact globular shape. Larger globular proteins are usually made up of two or more recognizable and distinct structures, termed domains or modules. These are compact, folded protein structures that are usually stable by themselves in aqueous solution. Typical domain structures consist of hydrophobic cores with hydrophilic surfaces. Individual domains often possess unique functional behaviors and often perform unique functions within the larger protein in which they are found.

Answer:

The comparison of proteins and polysaccharides establishes that they have similarity in both consist of linked monomers via the process dehydration reactions.

Explanation:

Both proteins and polysaccharides are polymers whose structure consists of the union of monomers. In the case of proteins the monomer is the amino acid, while in the polysaccharides can be glucose molecules.

The process of polymer formation is called polymerization, and one of the reactions that this process allows is polycondensation, where a water molecule is lost in the union of monomers.

The loss of water in a chemical reaction involves dehydration, a characteristic shared by the processes of adding monomers to proteins and polysaccharides.

The other options are not correct, because

Answer:

Explanation:

Answer:

B) presence of a nucleus

Presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.

Prokaryotes are defined as those organisms which possess cells that lack membrane bound organelles. These are usually single cell organisms. Some examples of prokaryotes include bacteria, archaea, and cyanobacteria (blue-green algae).

Eukaryote are defined as those organisms which possess membrane bound organelles. These contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope. Some examples of eukaryotes include animals, plants, fungi, and protists.

Thus, the presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.

Learn more about Eukaryotic cells, here:

https://brainly.com/question/17353812

#SPJ6

Answer:

space adequate for building a shelter

Explanation:

edge 2021

Answer:

201km in 1.8 million year( also mark me as brailiest)

Answer:

2Na + 2H2O - 2NaOH + H2

Explanation:

WATER MOLECULE WILL BREAK INTO H AND OH

OH COMBINES WITH NA AND FORMS NAOH AND GIVES H2

Answer:

15.322 %

Explanation:

Supposing that this is a recessive disorder and the population is in Hardy-Weinberg equilibrium:

p² + 2pq + q² = 1, where

1- the genotypic frequency of the homo-zygous dominant allele is p²,  

2- the genotypic frequency homo-zygous recessive allele is q², and

3- the genotypic frequency heterozygous allele is 2pq  

Therefore:

q² = 0.007 >> q = √ 0.007 = 0,0836  

p = 1 - q = 1 - 0,0836 = 0.9164

2pq = 2 x 0.9164 x 0,0836 = 0.15322 (or 15.322 %)

Answer:

Explanation:

The difference you can see when you comparethe nucleus of a dividing cell with that of a nondividing cell is that chromosomeswill be seen in the nucleus of the dividing cell because they are visible when acell is dividing apposed to non-dividing cells.

Individuals of the same species that live in the same area is a population

Answer:

C is the answer

Explanation:

Answer:

c

Explanation:

it spreads out into the water

Answer:

Primary reinforcer is innate, secondary reinforcer is a stimulus

Explanation:

While a primary reinforcer is innate, a secondary reinforcer is a stimulus that becomes reinforcing after being paired with a primary reinforcer, such as praise, treats, or money.

Hope this helps!

Brain-List?

Answer:

cell membrane

Answer:

Explanation:

The purpose of having leak and gated channels for the neuron is that the leak channels will allow the movement of sodium and potassium across the cell membrane downward from high concentration gradient to low concentration gradient. With the leakage of ions across the cell membrane, there is maintainence of a stable resting potential of cells.

Solution :

In the context, Menten and Michaelis were doing a research. They are studying about the enzyme sucrase that can use sucrose like a substrate.

The intercept on the y-axis gives the value of the Vmax.

As the intercept is same for both the plots, Vmax does not change upon the competitive inhibitor of sucrase.

The graph plotted is provided below.

The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.

Answer:

Population of F2 generation will be formed on 9:3:3:1 ratio.

Explanation:

The predicted phenotypic ratios of F2 generation is 9:3:3:1. Ratio 9 represents straight wings, gray body which are dominant allele, ratio 3 represents hybrid flies having curved wings, gray body, ratio 3 represents hybrid flies having curved wings, ebony body and ratio 1 indicates flies with curved wings, ebony body. The population of F2 generation will be formed on the above ratio.

The study of genes is called genetics.

The correct answer is Population of the F2 generation will be formed on the 9:3:3:1 ratio.

When more than two characters are crossed to form a new breed is called a dihybrid cross.

The predicted phenotypic ratio of F2 generation is 9:3:3:1. Ratio 9 represents straight wings, gray bodies which are dominant allele, ratio 3 represents hybrid flies having curved wings, gray body, ratio 3 represents hybrid flies having curved wings, ebony body and ratio 1 indicates flies with curved wings, ebony body. The population of the F2 generation will be formed on the above ratio.

Hence, the correct answer to the question is mentioned above.

For more information about the genes, refer to the link:-

https://brainly.com/question/14688752

Both the Euglena and Volvox use an oral groove to obtain food, Brigid Ha. B. Both the euglena and volvox use chloroplasts to obtain food through photosynthesis.

this is what i looked up an got

Answer:

As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity. However, at sufficiently high levels of light intensity, the rate oxygen evolution remains constant.

Answer:

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Explanation:

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