Fecundation in chondrichthyes and osteichthyes
How dissimilar are fecundation in chondrichthyes and osteichthyes?
Expert
In chondrichthyes fecundation is interior by means of copulation. In osteichthyes fecundation usually is external and the gametes are liberated in the water, where they can fecundate their complement and form the zygote.
Historically what were two major evolutionary theories?
Stimuli that contrast with the surrounding environment are more likely to be attention catching than the stimuli that blend in. a contrasting effect can be caused by color/size or any other factor that is unusual. The contrast principle states that external stimuli that stand out against the back
Specify the role of flagellum of the sperm cell? How is it generated?
Whether there was molecular oxygen within the earth's primitive atmosphere? How that molecule has become abundant?
Where in the mitochondria does the procedure called respiratory chain take place? Which are products of Krebs cycle employed in that final phase of aerobic respiration?
Distinguish between the cell mediated and humoral immunity. Also write down their main functions.
How fishes exchange gas?
Define mitochondria? What is the fundamental morphology of such organelles and in which cells can they can be found?
What do you mean by myeloma protein? Answer: This is a monoclonal immunoglobulin generated from a myeloma cell.
Why the 2-A group elements are termed as Alkaline earth elements?
18,76,764
1926982 Asked
3,689
Active Tutors
1453356
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!