Nevermind. I see the math.
D3.3 Homeostasis - model answersQuestion 4.I asks 11:30am - 6:30pm but the math on the key is from 10:30am. The temp at 11:30 is above 37.44C.
D3.3 Homeostasis - model answersThe practical scheme of work hyperlink is not working
IB DP Biology - IntroductionThanks a lot, Richard!
The new Investigation from 2025Hi, Can activity 1 and 3 be completed soon please.
Cross pollination & seed dispersal (2025)Correct me if I'm wrong, but I think for the "Absorption & action spectrum student sheet" Q3 should be that the peak action spectrum is above the peak absoprtion of chlorophyll a.
Chromatography & absorption spectrum (2025)Dear Barbara Garlic is an antiseptic, not an antibiotic, so it is within the guidelines, but all the strictures on microbial safety must be followed. As regards the second, IB advises against two IVs in an investigation, but I have no...
The new Investigation from 2025Second question on human physiology investigations: a student has the idea to apply auditive repetitive beats with increasing speed to probands ( over 16 years age, with their consent, declaration of good physical health) and measure the increase...
The new Investigation from 2025Dear Richard, a student would like to investigate the inhibitory effect of garlic on bacterial growth ( E.coli). Am I right to think that this considered as (natural) antibiotic resistance in bacteria and not allowed?
The new Investigation from 2025
Jay
Hi, the Secrets at Sea link goes to an online casino.
Eutrophication & Biomagnification (2025)