- Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about ? On this page you'll find 2 study documents about .
Exam (elaborations)
AQA A-Level Biology - Topic 3 (2024) with Verified Answers
Give 2 reasons why in multicellular organisms, diffusion across outer membrane would be too slow? 1. Some cells deep within body- big distance between them and outside 2. Larger animals have low surface area to volume ratio- difficult to exchange enough substances to supply large volume What 2 things do most gas exchange surfaces have in common that increases the rate of diffusion? 1. They have large surface area 2. They're thin- short diffusion pathway Each gill is made of lots of th...
GONZOGEEK
Package deal
AQA A-Level Biology exclusive package
Ditch the rigid semester structure. Learn at your own pace. This academic package wouldn't just impart knowledge, it would empower you to use it.
GONZOGEEK