Invasive Species Quick Check 1 of 5Items
Assessment started: Invasive Species Quick Check.
Item 1
Coral and algae demonstrate mutualism, a symbiotic relationship where both organisms benefit. Select the option that is also an example of a mutualistic symbiotic relationship.(1 point)

Cattle egrets follow livestock herds. As the livestock walk, they stir up insects in the grass, and the cattle egrets feed on the insects.

Clownfish live inside anemones, protected from predators by the anemones' stinging tentacles.

Remoras hitchhike on large fish and sharks, eating dead skin and parasites off the larger animals.

Wasps lay eggs on tomato horn worms to develop. When the larvae hatch, they feed on the horn worms.

Aroll in a paper machine is powered by a separately excited dc machine. operating point 1 (under load): the roll typically operates at 764 rpm and must provide 301 nm of torque to oppose the load of the paper. the armature voltage is 230v for this operating point operating point 2 (no load): when the load is removed the speed of the roll increases to 900 rpm (the field characteristics are unchanged) la ea dev m (a) calculate the maximum torque (units of nm) that the motor can supply with this applied voltage (b) calculate the value of the armature resistance, ra (in ohms) (c) at operating point 1 (loaded condition), the field current, i, and the total input power (armature field), are measured to be to be 10 a and 28,600 w respectively. use this information to calculate the value of the field resistance, rf (in ohms). (d) (d) at operating point 1 (loaded condition), calculate the motor efficiency. express your answer as a percent to at least 2 significant digits. (d) if the field voltage is reduced by 1/2, calculate the new stall torque (in nm) of the motor (f). if the field voltage is reduced by 1/2, calculate the new no-load speed (in rad/sec)

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system