Answer:
b. The foot and ankle should be pointing straight ahead in a dorsiflexed position when it hits the ground
Explanation:
Dorsiflexion is a movement in the ankle where the toes point in an upward direction allowing for correct foot strike if done properly at approx. 15 degrees. As you run, dorsiflexing your foot puts it in an ideal position to absorb the shock of the landing while simultaneously tensing your muscles to spring forward into the next stride which allows a reduced ground contact time per stride, allowing you to run faster and more efficiently.
If a runner has poor dorsiflexion they may experience a ‘loose’ or ‘floppy’ foot due to relaxation at the ankle joint which results in striking the ground through the toes which causes poor force distribution resulting in injuries such as shin splints and runner’s knee.
Using karyomapping, the IVF procedure can make sure that the offspring produced doesn't contain that specific gene.
This process is simply diagnostic because it only selects the embryo that safe from the genes. It is not altering the genes, so the <span>child</span> should be genetically hers.
Inflammatory response can be defined is a reaction of the body to injury or destruction of tissues. This reaction serves to dilute, destroy or simply wall off the agent causing the injury and is localized around the area of injury.
Inflammatory response takes place in the following steps:
1. Tissue damage caused by injury or bacterial infection is detected.
2. Vasodilators and chemotactic factors such as histamine are released.
3. As a result, there is increased capillary permeability and blood flow to the area.
4. There is migration of phagocytes to the site of infection.
5. Phagocytes and specific serum proteins attack and destroy bacteria.
6. Inflammation dies down once intruder has been destroyed.
1) Long slender leaves ("needles") because:
a) They don't lose a lot of water from photorespiration b/c of low surface area
b) Snow doesn't pile into the branches and break the branches off (snow is very heavy). the needles don't catch and hold very much snow.
2) The wood is soft and bendable. Strong wind doesn't break it, because it flexes. Any snow that does manage to pile on is dropped when the wind blows, or when the weight of the snow bends the Branch down.
Hope this helps! :)
Natural selection relates to adaptations except for Natural selection grants a species any trait it might need for survival
Explanation:
The ways in which an organism adapt to its changing environment is termed as natural selection. The individual with better trait compatible to the environment adapt themselves and reproduce to pass on the useful trait to its offspring. Through the process of natural selection, population survives.
Natural selection is also responsible for speciation where new species can occur in population.
If the environment changes rapidly, some of the species are not able to adapt
and eventually gets deleted from the environment.
Natural selection itself does not provide any trait to the species or population it is just a way how species adapt with traits they inherited over a period of time.
