Sort the four graft types and three kinds of rejection, walk through an IVF cycle, know when and why amniocentesis is done, and tell a transgenic animal from a clone.
Unit 7 carries 2 of the 40 zoology marks; with two chapters sharing them, this one averages one (MEC publishes weights by unit, not by chapter). The MEC scope line: Tissue and organ transplantation; In-vitro fertilisation (IVF); Amniocentesis; Transgenic animals. Three ways it is asked:
Upgrade to unlock this and every premium study note, formula sheet and high-yield summary — plus unlimited mocks and full solutions.
See the plansZoology Rapid Revision — Numbers, Ratios & Sequences
Human physiology values, genetic ratios, hormone-to-gland maps and the classification characters MECEE-BL tests — the recall layer of the 40-mark Zoology block.
Human Physiology: The Highest-Yield Zoology Facts
The most repeated human-biology facts — hormones, blood, nerves, vitamins — condensed for rapid revision.
Classification of the Animal Kingdom
Phylum-by-phylum diagnostic features from Porifera to Chordata, with examples.
Origin of Life: From Hot Dilute Soup to the First Amino Acids
How Oparin and Haldane argued life was built up chemically on a young Earth, and how Miller and Urey tested that idea with four gases and a spark in 1953.