Mammals- Placenta
Specify whether all mammals have placenta?
Expert
Mammals of monotreme group like platypus, echidnas are egg-laying, oviparous, and they don’t have placenta. Mammals of marsupial group example: kangaroos, koalas, opossums, don’t have placenta either; females belonging to this group gave birth to the embryonic young which then continue its development in the mother’s pouch. Placenta is formed in the female placental mammals.
What do you understand by the term Happa? And how it is useful?
Give a brief explanation of fixism?
Illustrate the name provided to conditions in which the own immune system of individual is the agent of diseases? What are various examples of such conditions?
Explain briefly the term Hearing AID? Also state its working in brief.
Write the chemical equation of the formation of bicarbonate from carbon-dioxide and water? Name the enzyme which catalyzes this reaction?
What does radial symmetry signify? Describe the type of symmetry found in the chordates? Name the other phyla of animal kingdom that exist in species with radial symmetry?
What takes place throughout the aerobic respiration to pyruvic acid molecules made up by glycolysis? What sequence of reactions that then follows?
How do biodiversity, total number of living beings and biomass respectively differ throughout the ecological succession?
Name the part of vascular system which performs exchange of gases and other substances with the tissues? Answer: Just capillaries perform exchange of gases and othe
Specify the specialized conductive tissues of plants?
18,76,764
1948180 Asked
3,689
Active Tutors
1448826
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!