STIs can be avoided by taking precautions such as not having a physical relationship with someone who has an STI, using a safe and secure procedure, washing properly, and so on. All of these precautions can help keep the STI from spreading.
It is a sexually transmitted infection that can easily spread from one infected person to another during physical relationship. Some examples include syphillis, which can be passed from one person to another if the person does not maintain proper sanitation and goes to check and consult with doctors before engaging in a physical relationship.
This can be prevented by using a condom, which prevents the spread of such STIs. One should get tested for the STI disease and maintain proper cleanliness in that part of the body. One should not be involved in multiple partners because it increases the chance of being diseased.
Hence, proper preparation and sanitation should be maintained to stop the spread.
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Answer:
Synthetic
Explanation:
Synthetic drugs are drugs that are man-made and chemically-created in a lab by modifying the molecular or chemical structure of another substance. The synthetic drug now has properties and effects that are similar to that of the substance that is being mimicked.
Various illicit drugs such as marijuana and cocaine are being synthesized to create synthetic drugs to mimic them. An example of a synthetic drug is synthetic marijuana also called Spice or K2.
Answer: gamma rays are high energy and may cause damage to healthy cells.
Explanation: I took the test!!
yeast
penicillium
aspergillus
Rhizopus stolonifera
The correct answer is:
Penicillium
Aspergillus
The lesson states:
If you've ever heard of or taken penicillin to fight off an infection, you can thank a member of the imperfect fungi called penicillium. Some mold species of penicillium are also important in the flavoring and aging of cheese. Roquefort and Camembert cheese owe their distinctive flavors to these fungi. Aspergillus is an imperfect fungus that is found on decaying food. It also contributes to the production of organic acids like citric acid. Both penicillium and aspergillus produce enzymes that are purified and used in various industrial compounds and in medicine.
Stabilizing selection and disruptive selection are both examples of natural selection that affect population variation. In stabilizing selection, the average phenotype is favored, selecting against extreme variation. Disruptive selection, on the other hand, selects for extreme phenotypes, while the average phenotype is selected against.
Stabilizing selection and disruptive selection are both examples of natural selection that affect population variation.
In stabilizing selection, the average phenotype is favored, selecting against extreme variation. For example, in a population of mice that live in the woods, natural selection favors individuals that blend in with the forest floor and have a brown coat, while lighter or darker mice stand out and are more likely to be preyed upon.
Disruptive selection, on the other hand, selects for extreme phenotypes, while the average phenotype is selected against. For instance, if a population of birds lives in an environment with two distinct food sources, those with short beaks may be better adapted to feed on small, soft fruits, while those with long beaks may be more efficient at capturing insects. Birds with medium-sized beaks may struggle to effectively exploit either food source.
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Cell membrane (plasma membrane) acts as a selective barrier, regulating the traffic of materials into and out of the cell.
The cell membrane, also known as the plasma membrane, is a crucial component of all living cells. It serves as a selective barrier that controls the movement of substances into and out of the cell. This selective permeability is essential for maintaining the cell's internal environment and regulating the exchange of nutrients, gases, and waste products. The cell membrane consists of a lipid bilayer embedded with proteins, and its hydrophobic interior prevents the passage of most polar molecules.
To facilitate the transport of specific substances, the cell membrane contains various proteins, including transport proteins, receptor proteins, and enzymes. These proteins help regulate the flow of ions, nutrients, and signaling molecules across the membrane. Overall, the cell membrane is a vital structure that ensures the cell's survival and functionality by controlling its interactions with the external environment.
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The cell membrane acts as a selective barrier, regulating the traffic of materials into and out of the cell.
The structure that acts as a selective barrier, regulating the traffic of materials into and out of the cell is the cell membrane or plasma membrane.
The cell membrane is composed of a phospholipid bilayer with embedded proteins that control the movement of substances in and out of the cell. It selectively allows certain molecules to pass through while keeping others out, maintaining homeostasis within the cell.
For example, the cell membrane regulates the entry of nutrients and gases into the cell, as well as the removal of waste products and excess substances. It ensures that the cell maintains the appropriate balance of substances for proper functioning.
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b.monocyte
c. lymphocyte
d. basophil
The cell observed on a blood smear slide prepared using Wright's Stain with a U-shaped nucleus and pale blue cytoplasm is a monocyte. Monocytes are part of the immune system and can become macrophages that consume harmful pathogens. So, the correct option is b.
On a blood smear slide prepared using Wright's stain, if you observe a large cell with a U-shaped nucleus and pale blue cytoplasm, this cell is most likely a monocyte. Monocytes are a type of white blood cell that have a large, often U-shaped nucleus and abundant cytoplasm that stains pale blue with Wright's stain. They play an integral role in our immune system, often transitioning into macrophages that can consume harmful pathogens or debris in our body.
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