Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Basic Planes of Cleavage
The basic planes along which the egg and its daughter blastomeres are divided during early cleavage are:
A. Meridional Plane - the cleavage furrow passes from the animal pole to the vegetal pole through the centre of the spherical egg or the blastomeres so as to divide the egg into two equal halves, e.g., first cleavage furrow in the chick and first as well as second cleavage furrows in the frog's egg.
B. Vertical Plane - the cleavage furrow forms parallel to animal-vegetal axis but a little away from the centre of the blastomeres, e.g., thud cleavage plane of chick blastoderm.
C. Equatorial Plane - the cleavage furrow bisects the egg at right angle to the median axis exactly half way between the animal and vegetal poles the cleavage furrow appears along the equator of the spherical egg, e.g. the third cleavage plane of sea urchin.
D. Latitudinal or transverse or horizontal plane - it is like equatorial but the cleavage furrow passes through the egg cytoplasm on either side of equator along the latitudes of the egg sphere, e.g., third cleavage plane of amphibian eggs.
The various organs involved in the digestion process are: Alimentary tract which includes mouth, pharynx, esophagus stomach, small intestine, large intestine, appendix, rec
Explain the Mortality and Survivorship Curves? Mortality : Just as a population has a birth rate, so does it have a death rate. A populations rate of death, or the number of
Define the Physiological Changes in Infants? Let us briefly understand some of these changes as they bear important relationship to the care and development of infants. Some o
Q. Describe Cultural Characteristics of Microorganisms? Bacterial growth in and on foods often is extensive enough to make the food unattractive in appearance or otherwise obj
Explain the Control of Air Pollution a. Air belongs to everyone Need it to treat air pollution as public problem b. Air pollution is an inevitable concomitan
What is Vertebrates ? Vertebrates are animals that have vertebral columns, and include the following classes: Agnatha - jawless fishes (ex. lampreys) Chrondirichthyes - cart
We have end of semester exams coming up meaning that a majority of it will be over subatomic particles
Explain about the Musculoskeletal System? Osteopenia (decrease in bone mineral content) is observed with aging. There is an average of 30% decline in the bone mineral density f
Determine the function of Osseointegration Osseointegration is also a measure of implant stability, which occurs at two stages- primary and secondary. Primary stability has be
What is Cerebrum Cerebrum is divided into right and left parts known as cerebral hemisphere. It is the largest part of the brain. The functions of the cerebrum: It recei
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd