How do animals exchange water and electrolytes between the body and the outside environment?Multiple choice question.Across specialized epithelial cellsAcross specialized connective tissue cellsAcross all epithelial cells in the bodyAcross specialized cells called nephrons

Which chamber of the heart pumps oxygen-rich blood to the rest of the body?Right atriumLeft atriumRight ventricleLeft ventricle       Which types of animals constantly use energy to maintain their body temperature?Reptiles and amphibiansBirds and mammalsFish and amphibiansInsects and arachnids       Where does the exchange of materials between the blood and surrounding cells occur?ArteriesVeinsCapillariesVenules       What does lymph carry from the intestine?OxygenDigested and absorbed fatHormonesWaste products       What is the nearest and richest source of raw materials for plants?AirSoilWaterSunlight       Which among the following is most important in transport of water in the plants at night timeTranspirational pullRoot pressureCapillary actionPhotosynthesis       The process that involves the transportation of soluble products of photosynthesis in plants isPhotosynthesisTranspirationTranslocationRespiration       The biological process involved in the removal of harmful metabolic wastes from the body calledDigestionRespirationExcretionAbsorption       Assertion: The kidneys are located in the abdomen, one on either side of the backbone.Reason: Urine produced in the kidneys passes through the ureters into the urinary bladder where it is stored until it is released through the urethra.Both Assertion and Reason are true, and Reason is the correct explanation of Assertion.Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.Assertion is true, but Reason is false.Assertion is false, but Reason is true.       What byproduct of photosynthesis is considered as a waste product in the context of plant excretion?Carbon dioxideGlucoseOxygenWater

Why do freshwater vertebrates have to actively transport inorganic ions in their bodies?Multiple choice question.Because they are hypertonic to the environment and tend to lose ions.Because most freshwater vertebrates accumulate ions throughout their life.Because freshwater vertebrates require high concentrations of inorganic ions from their kidneys to work.Because they are hypotonic to the environment and tend to lose ions.

Which type of tissue in plants is responsible for the transportation of water and nutrients?

When a person is dehydrated, water moves out of cells by:Question 3Select one:a.osmosisb.primary active transportc.secondary active transportd.perfusione.diffusion

1. Unlike an earthworm’s metanephridia, a mammalian nephron(A) is intimately associated with a capillary network.(B) functions in both osmoregulation and excretion.(C) receives filtrate from blood instead of coelomic fluid.(D) has a transport epithelium.2. Which process in the nephron is least selective?(A) filtration(B) reabsorption(C) active transport(D) secretion3. Which of the following animals generally has the lowestvolume of urine production?(A) vampire bat(B) salmon in fresh water(C) marine bony fish(D) freshwater flatwormLevels 3-4: Applying/Analyzing4. The high osmolarity of the renal medulla is maintained bywhich of the following?(A) active transport of salt from the upper region of thedescending limb.(B) the loose packing of juxtamedullary nephrons.(C) diffusion of urea into the collecting duct.(D) diffusion of salt from the descending limb of the loop ofHenle.5. In which of the following species should natural selection favorthe highest proportion of juxtamedullary nephrons?(A) a river otter(B) a mouse species living in a temperate broadleaf forest(C) a mouse species living in a desert(D) a beaver6. African lungfish, which are often found in small, stagnantpools of fresh water, produce urea as a nitrogenous waste. Whatis an advantage of this adaptation?(A) Urea takes less energy to synthesize than ammonia.(B) Small, stagnant pools do not provide enough water to diluteammonia, which is toxic.(C) Urea forms an insoluble precipitate.(D) Urea makes lungfish tissue hypoosmotic to the pool.999