I believe the correct answer from the choices listed above is option 1. ATP and calcium are the ones who participate in muscle movement. <span>Contraction is initiated by the release of calcium ions (Ca2+) upon the depolarization of the membrane, which is induced by nerve impulses.</span>
I'd say B and D definitely, and also E but I'm not entirely sure about that
A fertility rate of 1 means that the population is aging and decreasing.
Explanation:
The fertility rate is a demographic measure through which the demographers find out what is the number of children born at a particular age group of women, per 1,000. Around the world, the fertility rates differ a lot from place to place, and while some are very high, others are modest, while some are in very bad situation. To put it simple, the higher the fertility rate, the younger the population and the more it grows, the lower the fertility rate, the older the population and it decreases.
If a country has a fertility rate of 1, that means two basic things:
- the population is rapidly aging
- the population is decreasing
A situation like this causes lot of problems, both economic and social ones. The nation itself is also dying out, so without any drastic changes, in several generations a country may become almost empty of its inhabitants. The country that is the closest to such a scenario is Japan.
Learn more about the population of Japan brainly.com/question/9594524
#learnwithBrainly
Answer:
Everyone powering their homes with renewable energy.
Explanation:
Answer:
a group of countries that have agreed to eliminate tariffs and trade barriers
Explanation:
Free trade area is a trade agreement made between countries whose main intention is to increase trade relations between them by eliminating tariffs and quotas on the import and export of goods and services.
The Free Trade Area is considered one of the intermediate phases for the formation of an economic bloc.
It is noteworthy that it is not a customs union, because there is no common trade policy between countries, not even the establishment of external tariffs valid for all.
These agreements are governed by the WTO (World Trade Organization) or by agreements between the member countries themselves.
