They do not influence the salinity level in their environment, they maintain the salinity in their body. If they don't, osmosis will cause their cells to shrink due to the fact that the salinity in the cell is lower than outside the cell. This will make water leave the cells. So they need to get rid of excess salt all the time. Freshwater fish need to retain the salt in their bodies, otherwise the opposite will happen. Salinity level in the cell is higher than outside the cell and this causes influx of water which will make the cell build up turgor pressure. Ultimately they will explode. So fishes in both environments adapted to deal with osmosis.
Aerobic bacteria cause an infection on the surface of the skin, and anaerobic bacteria cause an infection in a heart muscle.
An aerobic bacteria can survive and grow in a oxygenated environment. A perfect environment is the skin because it's in contact with a lot of oxygen.On the other hand, an anaerobic bacteria cannot grow in the presence of oxygen. So for them to cause an infection, they need to be in a place without this gas, just like the heart which a deep tissue.
Answer:
The frequency of the recessive allele, t is f(t) = q = 0.29.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
The indentation on the medial surface of each lung through which
pulmonary and systemic blood vessels, bronchi, lymphatic vessels, and
nerves enter and
leave is called the hilum
In order to understand the ramifications of a mutation in the Hox genes you must understand what the Hox gene does. To put in simple terms the Hox genes control the body plan so you can think of them as a blueprint. For instance, they are responsible for determining the type of vertebrae in a given segment within the human spinal chord. As well as where body parts are found in insects such as fruit flies. Therefore, a mutation in the Hox gene can lead to body parts and limbs in the incorrect place or order in the body.
