Answer:
OD. The cat has been injured when it landed on its wrist.
Explanation:
Answer:Tính trạng kiểu hình, hay tính trạng là một biến thể đặc trưng về kiểu hình của một sinh vật có thể do di truyền, do môi trường hoặc là sự kết hợp của cả hai yếu tố trên. Ví dụ, màu mắt là một đặc trưng, màu mắt xanh, nâu hay hạt dẻ là các tính trạng
Explanation:
Explanation:
When two solutions with different pH are mixed together, the pH of the final mixture will be in-between the original pH levels.
Since 3 < 8, the pH of the acidic orange juice will increase. (A)
Answer:
The correct answer is "There are several mechanisms that explain why a hormone have different effects in different cells. These mechanisms include: multiple receptors for the same hormone, a single receptor coupled to different pathways and hormones interacting with receptors for other molecules".
Explanation:
Hormones are among the most versatile molecules of the body, responsible for different biological processes such as human growth, sex development and metabolisms. Hormones are responsible of these complex biological processes because they have drastically different effects in different cells. There are several mechanisms that explain why a hormone have different effects in different cells. These mechanisms include:
- Multiple receptors for the same hormone. For instance, there are multiple receptor for dopamine, a hormone and neurotransmitter responsible for different functions such as movement, memory, sleep and motivation.
- A single receptor coupled to different pathways. Most hormone receptors act with a cascade of signaling. This in consequence results in a single receptor interacting with different molecules having multiple effects.
- Hormones interacting with receptors for other molecules. One example is the action of one metabolite of progesterone named allopregnanolone. This metabolite interacts with GABA-A receptor, which gives it anxiolitic properties.