A. Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment
B. Trimethyl alanine
C. Ammonia
D. Trimethylamine oxide
Related Mcqs:
- Which of the following marine fishes are considered direct descendents of fresh water ancestors?
A. Hagfish
B. Jelly Fish
C. Star Fish
D. Bony fishes - In a hot summer after noon, if your body’s Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of____________?
A. Positive feed back
B. Negative feed back
C. Feed back
D. Osmoregulation - Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?
A. Hagfish
B. Fresh water fishes
C. Bony fishes
D. None of these - The most important group of producers in marine ecosystem is of__________?
A. Diatoms
B. Euglenoids
C. Dinoflagellates
D. Brown algae - Exoskeleton of a marine snail is composed of________________?
A. CaPO4
B. CaCO3
C. CaSO4
D. SiO2 - Most of the marine invertebrates are__________?
A. Osmoconformers
B. Osmoregulators
C. Both depend upon the concentration of sea water
D. None of these - An association in which fungal hyphae penetrate the outer cells of the plant root forming coils swellings and minute branches and also extend out into surrounding soil is called______________?
A. Mycorrizael association
B. Endomycorrhizae
C. Ectomycorrhizae
D. Lichen - Fibrous capsule surrounding synovial joints may be thickened at some places to form:
A. Synovial membrane.
B. Ligaments.
C. Muscles.
D. Tendon - Stomata open due to _________ of K+ into the guard cells from the surrounding epidermis
A. Diffusion
B. Active transport
C. Osmosis
D. All of these - The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________?
A. Homeostasis
B. Hemostasis
C. Osmoregualtion
D. Thermoregulation
