Answer:
Birth Rates are equal to death rates
Explanation:
Population, in biological terms, refers to the organisms of the same species interacting together in a given area. In this case, the population consists of marine iguana species living on an island far from the mainland. The population size is the total number of marine iguanas existing in the island.
However, birth rate and death rate can affect the population size of the marine iguana species. The birth rate and death rate refers to the number of births and deaths occuring in the population respectively. Hence, since the size of marine iguana population stays roughly the same, it means that the BIRTH RATES ARE EQUAL TO THE DEATH RATES.
The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 100 billion neurons.
Answer:
As one goes up the other does as well for the first 2 but they aren't proportional (it is not simple cause and effect as there is a lot of factors)
The last question is to decrease their emissions as rising temperature is being effected by rising CO2 levels and rising temperature can cause a feedback loop causing more rising temperature
Explanation:
This question is rather subjective: the answer depends on how the question is interpreted. Many people would say climate change is the greatest risk to water supply, but the question mentions 'Earth's water supply'. It is a fact that the amount of water on Earth has not changed. Climate change is shifting climatic patterns, so some areas experience more droughts, whereas others experience more floods, but the amount of water on Earth still stays the same. My answer is therefore that pollution poses the greatest risk to Earth's water supply. Pollution decreases the amount of water we can safely use without expensive treatment. Some water pollution, such as certain toxic metals, pesticides or endocrine disruptors, simply can't be detected or treated using conventional water testing and treatment. Modern civilisation is resulting in unsustainable amounts of pollution being released into our rivers and lakes, and sooner or later, a threshold of no return will be reached, where ecological collapse will mean we won't be able to rely on these water resources for fresh water anymore.