<h2>Yeast cells </h2>
Explanation:
These engineered cells will mate with each other or with normal mating type a cells, but not with normal mating type α
The sexual cell types of yeast are designated a and α, which are correspondingly conferred by the MATa and MATα alleles of the mating type locus (MAT)
Cells of opposite type can mate to establish a cell of the MATα/MATa diploid state because both MAT alleles are co-dominant, such diploid cells are sterile but can undergo meiosis and sporulation to form asci, each of which contains two MATa and two MATα haploid spores
Answer:
a) Toxic (gases)
d) Bacterial
Explanation:
Septic tanks are underground structures usually built with concrete or plastic in which wastewater is treated. These tanks are generally used in rural areas and are located near bathrooms and laundry rooms.
If a septic tank is working correctly, it should produce any unpleasing smell. However, when an individual perceives a certain strong bad smell it could be due to the presence of gases (low levels of hydrogen sulfide and high levels of carbon dioxide, and methane) and anaerobic microorganisms such as sulfur bacteria which also produce methane and, therefore, strong smell.
It all depends of what kind of bad smell is the person perceiving. For example, the smell of "rotten egg" is usually due to microbial pollution and gases. Although these gases are not toxic in low levels, they could become highly toxic. It is extremely important to pay attention to smell and give the appropriate mainteinance.
The sense of the location of body parts in relation to the ground and each other is called Kinesthetic sense. Bastian (1888) developed the word "kinaesthesia," which refers to the capacity to perceive the position and movement of our limbs and trunk.
It's a fascinating sense since, unlike our other senses like vision and hearing, we're mostly unconscious of it in our daily lives. Kinesthesia is the knowledge of the position and movement of bodily parts through the use of sensory organs known as proprioceptors, which are found in joints and muscles. Kinesthetic sense is concerned with how we can determine the location of our limbs.
To learn more about Kinesthetic sense, click here.
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Osmosis is the process by which solvent molecules move through a semi permeable membrane from a region of low concentration to the region of high concentration. The movement of the solvent depend on the solute concentration at each side of the plasma membrane. In a situation, where the solute concentration on both side of the membrane is the same, then there will be no net movement of solvent across the membrane.
Body cells have specific ideal concentration levels for each ions in the cell, osmosis help to maintain this concentration by means of osmoregulation. Osmoregulation is the process by which constant osmotic pressure in the fluid content of cells is maintained by the control of salt and water concentration.
Answer:
Tendon sheaths <u>act as friction-reducing structures.</u>
Explanation:
Tendon sheaths are fibrous tissue that is around tendons to protect and make the movements of these smoother. For example, they reduce the friction of the flexors and extensors tendons of the hand. These are tendons that we constantly use to open and close our hands when we want to grab objects. Without the sheath, the tendons will not move easily, and due to the excessive use, there can be inflammation.
The sheats have two layers, one internal, which is a synovial one that produces synovial fluid to lubricate the tendon, and the external, which is a fibrous layer.
