The soluto concentration of the body fluids of a shark is close to that of seawater. The shark achieves this by retaining high kvels of urea in its body What is the benefit of such a mechanism?
A. It prevents the gain of sales from the surrounding sea by osmosis
B. It prevents the gain of water from the surrounding sea by Cross
C. It prevents the loss of water to the surrounding sea by Osmosis
D. it prevents the loss of salts to the surrounding sea by osmosis

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.