Answer:
(I)
Explanation:
i. food web is a complex feeding structure, involving many food chain.
ii. a biological community of interacting organisms and their physical environment.
Two components are: Biotic(living things)and Abiotic(non-living things)
The correct labels of the given structures:
The diagram with labels 1, 2 and 3 is urinary and reproductive organs of human male.
- Urinary bladder
- Vas deferens
- Urethra
The diagram with labels 5, 6, 7 and 8 is urinary and reproductive organs of human female.
5. Fallopian tube or oviduct
6. Uterus
7. Urinary bladder
8. Vaginal canal
Explanation:
When fats are used as a substrate in respiration, the RQ is less than 1 because the amount of oxygen utilised is always higher than the amount of carbon dioxide released.
Answer:
C. By hormones, especially androgens.
Explanation:
The secretion of sebum is stimulated by hormones. Especially androgens. Sebum can be defined as a complex mixture of lipids synthesized under hormonal stimulation under the sebaceous glands in the skin.
Androgens can be defined as the sexual masculine hormones and they stimulate the sebaceous secretion docking into specific receptors located in the sebaceous follicle increasing the amount of produced sebum.
