Answer: 1. Sea urchins and sea otters
2. They are prey for carnivores.
3. Sea otters, star fish
Explanation:
Sea urchins and sea otters are carnivores as they eat on the flesh of starfish and sea urchins respectively.
Starfish feed on the kelp forests which are the producers in the food chain and the starfish is the primary consumer and prey for sea urchins. So, starfish and kelp forests are the prey in the marine ecosystem.
Keystone species is the one which controls the population of other inferior species in an ecosystem. Here, sea otters consume sea urchins so the population of sea urchins remained in control Starfish controls the population of kelp forest.
Pick the one that gets to your heart
Answer:
The correct answer is option A, that is, stimulate smooth muscle contraction.
Explanation:
A group of lipids and a hormone that plays an essential role in monitoring the process of the formation of blood clots, stimulation of labor, the flow of blood and inflammation is known as prostaglandins. The hormone prostaglandin takes part in various kinds of body functions like the relaxation and contraction of the smooth muscles at the time of childbirth, monitoring blood pressure, dilation and constriction of blood vessels, and produce inflammation at the site of infection or tissue damage.
Prostaglandins possess five-membered rings and are obtained from the fatty acid, arachidonic acid. At the time of blood vessel injury, thromboxane, that is, a form of prostaglandin enhances the process of blood clot formation so that the injury site gets heal quickly.
Answer:
Static stretching
Explanation:
Autogenic inhibition and reciprocal inhibition occur when Golgi tendon Organ is activated leading to inhibition of certain from contracting.
Stretching is a form of exercise that improves muscle's felt elasticity by deliberately flexing it.
Static Stretch entails singular motion held in a place for ten seconds or more and it is used to increase soft tissue extensibility through both Autogenic and Reciprocal inhibition.
Answer:
Intially the glucose concentration is levelled and then the liquid level in side A will rise.
Explanation:
- Initially the liquid ob both sides are in isotonic condition.
- The membrane is permeable to glucose so glucose will diffuse from higher concentration (2 M) to lower concentration (1 M) until the concentration become equal (1.5 M) on both sides.
- Know, the Side A have 2 M sucrose and 1.5 M glucose and side B have 1 M glucose and 1 M sucrose.
- The side A will become hypertonic and side B will become hypotonic and water will start moving from side B to side A.
