...ecology, respiration? 1) List FOUR structural similiarities between a developing human foetus and developing seeds in a tomato plant.
2) State TWO advantages of using pyramids of energy instead of pyramids of biomass to represent the feeding relationships in a food chain.
3) Name the features of mamalian respiratory system and explain how these enable mammals to survive in a TERRESTRIAL, rather than aquatic, environment.
4a) A male and female giraffe usually produce more than 20 young within several years. Explain why the population of giraffes in an area remains stable over a long period of time.
b) If food is the determining factor for survival in the area where giraffes live in, explain, using the theory of evolution, why the giraffe that can reach the leaves of a tree is most likely to survive as compared to those which are shorter.
Thanks for your help!!
Another question!!
5) If the time taken for fats (contained within milk) to be broken down into fatty acids and glycerol are recorded as such: 22min for milk sample A, 11min for sample B and 17min for sample C (temperature is 8 deg C), place the 3 milk samples in order of their fat content, starting with the lowest. EXPLAIN WHY.
Please answer those that you know, you do not need to solve everything cos I know it's not easy to complete these questions. Your help is greatly appreciated. Thanks!!
2) State TWO advantages of using pyramids of energy instead of pyramids of biomass to represent the feeding relationships in a food chain.
3) Name the features of mamalian respiratory system and explain how these enable mammals to survive in a TERRESTRIAL, rather than aquatic, environment.
4a) A male and female giraffe usually produce more than 20 young within several years. Explain why the population of giraffes in an area remains stable over a long period of time.
b) If food is the determining factor for survival in the area where giraffes live in, explain, using the theory of evolution, why the giraffe that can reach the leaves of a tree is most likely to survive as compared to those which are shorter.
Thanks for your help!!
Another question!!
5) If the time taken for fats (contained within milk) to be broken down into fatty acids and glycerol are recorded as such: 22min for milk sample A, 11min for sample B and 17min for sample C (temperature is 8 deg C), place the 3 milk samples in order of their fat content, starting with the lowest. EXPLAIN WHY.
Please answer those that you know, you do not need to solve everything cos I know it's not easy to complete these questions. Your help is greatly appreciated. Thanks!!