Do all mammals contain a placenta
Do all mammals contain a placenta?
Expert
Mammals of the monotreme group (that is, platypus and echidnas) are oviparous, egg-laying, and they do not encompass a placenta. Mammals of the marsupial group (that is, kangaroos, koalas and opossums) do not contain a placenta either; females of this group give birth to embryonic young that then carry on growth in the mother’s pouch. Placenta just forms in female placental mammals.
Write down the main mineral salts responsible for cellular osmotic regulation?
Potential Problems in Surveys: If you can, you should watch for a number of potential problems that might arise in a survey: • The definition of the sampling method, if not mentioned, can be a cause for suspic
Determine the target tissues and target organs of the neurohypophysis?
Noramlly how does a male animal recognize that the female is approachable to copulation?
Define chloroplasts in brief?
Describe the term melanocytes?
Explain three types of germ layers which form tissues in addition of organs in animals?
Give a brief description of the term root cap?
What happens to TSH (thyroid-stimulating hormone) blood level in the hypothyroidism? Why there is enlargement of thyroid in the endemic goiter disease?
The social and technological changes, knowledge explosion, product and service obsolescence and globalization have immense effects on organizations. Vase on a systematic analysis of past and current events, the following 'megatrends' are predicted, which appear relevant to the study of Organizati
18,76,764
1941394 Asked
3,689
Active Tutors
1454748
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!