The plasma membrane acts as a barrier in cells of all types to control the movement of substances into and out of the cell.
a.explain how the plasma membrane acts as a semi-permeable barrier to various types of molecules based on its molecular structure.
b.describe, in detail, three ways in which large molecules such as proteins can cross the plasma membrane.

Prevents Conduction

Answer:

Option C,  is a good insulator

Explanation:

See the attached image of the  underwear

Solution

As it is clear in the image, the fabric of the underwear is poly fabric which acts as a good insulator.  

Being an insulator, it can easily trap the heat of the body during winters and does not allow this heat to escape due to which it is successful in keeping a person warm during the winters.  

If the material of the underwear would have been a conductor, it would have allowed heat of the body to escape.

Hence, option C is correct

Answer: The correct answer is D. RR or Rr

If the ductus deferens tubes are cut and tied, the semen will not contain sperms. This is known as vasectomy. This procedure is performed in males to control population. Thus, the correct option is D.

Vasectomy is the permanent male sterilization procedure. It is a surgical procedure which involves the cutting or sealing of the ductus deferens tubes which carries a man's sperm to permanently prevent pregnancy. It is usually carried out by giving a local anesthetic to the client, where the man is awake but could not feel the pain, and this procedure complete in about 15 minutes.

Once the tubes are cut, sperms cannot enter into the semen of man or out of the body. However, the testes do produce sperms, but the sperms die and absorbed by the body. A man who have undergone a vasectomy still produces the semen and is also able to ejaculate it. But, the semen contains everything except sperms.

Therefore, the correct option is D.

Learn more about Vasectomy here:

https://brainly.com/question/6805921

#SPJ6

A. Crossing-over between homologues.

In meiosis and mitosis, recombination happens between comparable particles of DNA (homologous groupings). In meiosis, non-sister homologous chromosomes pair with each other so recombination ordinarily occurs between non-sister homologs.

All living organism reproduces either through asexual reproduction or sexual reproduction or sometimes through both mode of reproduction. In both cases let it be sexual or asexual, the mode of cell division namely meiotic and mitotic cell division, the recombination between homologous chromosomes is a typical system utilized in reproduction.  

Warts are the abnormal skin growths that result from a virus. While freckles, moles, and jaundice are also skin conditions, they are not typically caused by a virus. Instead, each has different causes such as sun exposure, genetics, and high levels of bilirubin respectively.

The abnormal skin growth that results from a virus is a wart. Warts are rough, usually skin-colored growths that appear on the skin and mucous membranes. They are caused by the human papillomavirus (HPV). The virus infects the top layer of the skin and causes it to grow quickly, leading to a wart. While freckles, moles, and jaundice can also be familiar terms related to skin conditions, these are not typically caused by a virus.

For instance, freckles aren't caused by a virus but are small, brownish spots on the skin that can appear as a result of sun exposure and genetics. Moles, which are small skin marks caused by pigment-producing cells in the skin, are mostly harmless and aren't typically caused by a virus. Meanwhile, jaundice is a result of high levels of bilirubin in the body and causes a yellowing of the skin and eyes, but it is not related to a viral infection.

https://brainly.com/question/32748231

#SPJ3

Hurricanes form over tropical waters (between 8 and 20 degrees latitude) in areas of high humidity, light winds, and warm sea surface temperatures [typically 26.5 degrees Celsius (80 Fahrenheit) or greater]. These conditions usually prevail in the summer and early fall months of the tropical North Atlantic and North Pacific Oceans, and for this reason, hurricane “season” in the northern hemisphere runs from June through November.

The first sign of hurricane genesis (development) is the appearance of a cluster of thunderstorms over the tropical oceans, called a tropical disturbance. Tropical disturbances generally form in one of three ways, all of which involve the convergence of surface winds. When winds come together (converge), the force of the collision forces air to rise, initiating thunderstorms.

Hope this helps please award brainly :)

Answer:

It's A and you welcome

Explanation:

P.s the other person is copying me so I don't get much credit

Hi,

If a point mutation occurs during which  CGA changes to AGA, the mutation will be simply inherited to the offspring and there won't be any harsh effects on the health of individual.

This is because, both AGA and CGA code for same amino acid called Arginine.

We know that mutations posses harmful effects when they change the genetic sequence leading to the incorporation of incorrect amino acid in the organisms and their offspring. But in this case the mutation will not be harmful and will simply be transferred to the offspring and will have no effect on the functioning, fitness or survival of the organism

Hope it helps!:)

Answer:

Nothing will happen since the last codon will still correspond to threonine.

The answer is A :) apex

The correct answer is option A

The set of terms that can be used to describe the community of software developers who can have:

Middle income: The software developers have middle income as there are many companies and thousands of employees so the income is not that high.

High density: The number of people working in the software companies are  in huge numbers.

Advanced Technology: The most advanced type of technology used by the people is the software development sector.

Final answer:

The Calvin Cycle or light-independent reactions of photosynthesis use ATP, NADPH, and carbon dioxide to produce glucose.

Explanation:

The part of photosynthesis that requires ATP, NADPH, and carbon dioxide to produce glucose is known as the Calvin Cycle, or the light-independent reactions. These reactions do not require light to occur and are responsible for the fixation of carbon dioxide into organic molecules. In the process of carbon fixation, CO₂ is 'fixed' from an inorganic to an organic form and then, using the ATP and NADPH generated from the light-dependent reactions, these fixed carbons are combined to form sugar molecules such as glucose.

Answer:

the answer is C

Explanation:

the answer is C

Proteins provide 4 calories of energy per gram, fats  9 calories, while carbohydrates 4 calories. A   roasted chicken multigrain sandwich which contains 42 g protein,7 g fat, and 34 g carbohydrates will provide a total energy (E) computed as follows:

Let E= 42(4)+7(9)+34(4)

E=168+63+136

E=367 calories of energy

The answer is D on plato.

Thin myofilaments are made up of the protein actin, meanwhile thick myofilaments are composed of the protein myosin. These two are key players in muscle contraction.

In muscular biology, the terms thin and thick myofilaments reference the protein structures that enable muscle contraction. Thin myofilaments are primarily composed of the protein actin, along with two other proteins, tropomyosin and troponin. Thick myofilaments, conversely, are made of another protein called myosin. These myofilaments slide past each other to cause muscle contraction, a process known as the sliding filament theory.

https://brainly.com/question/36246145

#SPJ3