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.
Answer:
A) Organic
Explanation:
Since coal is made up of the remains of living organisms, this makes it organic since the substances that make up it were/are organic.
Mitosis is the correct answer
The correct answer that would best complete the given statement above would be the first option: CONSERVATIONIST; SONOGRAPHER. A preference for working outdoors may be helpful if Lakeesha wants to become a conservationist, but not if she wants to become a sonographer. Conservationist is someone who is active in the protection and preservation of wildlife and the environment. A sonographer is someone who does a medical diagnostic procedure using ultrasound. Hope this answer helps.
