1 Anaerobic is without the presence of oxygen, he ran for 1.5 minutes, and the level of lactic acid was higher at the end, 18dm3. Epithelial tissue cover the inside and outside of the stomach, glandular realises digestive juices, muscular churns up food.
2. Put the pondweed in a test tube, fill up a beaker with water, put the test tube in the beaker, use a ruler to measure bubbles, use a timer to measure how long the light is on for, move away the light at the same intervals. Control variables- Time and distance of the light. I know that you aren't supposed to add equipment like I did, but it said that these are SOME of the things you may use, and I had a thick moment and started adding things😑
3. Enzymes are biological catalysts made of proteins. They speed up reaction without being used up in the process. Advantage- Can be done at low temperatures and can be reused. Disadvantage- Enzymes can denature easily, due to things like pH.
4. Do the maths stuff (can't remember any) and the improvements are 1. Do more samples 2. Place the quadrants randomly to eliminate bias and 3. Can't remember😐
5. Talk about two dominant alleles or one dominant and one recessive for the mother, and two recessive a for the father. The ginger one was 25% chance of a ginger and a 50% chance for the polydactyl one.
6. Advantages and disadvantages ( accidentally wrote those in question 3)
7. I had no idea what pictograms were, but the bottom answer was MITOSIS.
8. Geographical isolation, survival of the fittest, natural selection and the passing on of favourable alleles. And then the last question was that the conditions are similar on the islands and there hasn't been enough time for evolution.
The circle question was CYTOPLASM
That's what I got anyway. I've probably gotten some wrong, put some in the wrong order or missed some out.😳