Explain embryonic sac
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
Expert
The embryonic sac refers to the female gametophyte of the angiosperms. The embryonic sac generally composed of three cells which remain next to micropyle, two lateral synergids and the central oosphere (egg); the polar nuclei, one binucleated cell, is placed within the central region; three antipodal cells remain in the opposite side to micropyle. As all these cells come through the mitosis from the functional megaspore they are haploid (n).
Which disease takes place due to the lack of vitamin "D"? Answer: Rickets is the disease that takes place due to the deficiency of vitamin "D".
Describe the relationship among vitamins and enzyme cofactors?
Name the elements which comprise the internal ear? Describe the functions of such structures?
Explain the involvement of endocrine glands in menstrual cycle? Name the hormones in action?
Name the type of nitrogen waste removed by beings of class Reptilia?
They behave differently to different stimuli because of a multitude of factors. These include an individual's age, sex, education, intelligence, personality, physical characteristics, experience, values, and family and cultural background. For instance, a young railway ticket collector would beha
Two general trends have emerged to represent Knowledge Management in the literature and actual practice: I. Tangible knowledge assets captured and retained in organization structures and systems. For example, R & D (research and development) outcomes, patents, copyrights, royalties, l
What is the basic difference between cellular respiration and respiration meaning gas exchange?
What are the ploidy of gamete-forming cells?
Write down the modes of transmission, main signs and treatments and symptoms of hepatitis A?
18,76,764
1960329 Asked
3,689
Active Tutors
1459009
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!