11.) Is the letter choice "A.)".
An ecosystem can be described as a community of animals, plants and bacteria that interact with one another.
This can be proved in paragraph 2;
"Ecosystems also can be thought of as the interactions among all organisms in a given habitat."
12.) Is the letter choice "C.)"
Land development.
This can be proven in paragraph 2;
"Human activities can harm or destroy local ecosystems unless actions such as land development for housing or businesses are caredully planned to conserve and sustain the ecology of the area."
13.) Is the answer choice "A."
Protecting ecosystems.
This is proven (given) in paragraph 2 by summary;
"An important part of ecosystem management involves finding ways to protect and enhance economic and social well-being while protecting the physical environment."
I hope this helps!
It is about Benjamin solomons life
“Yes,”
<span> the lady said, “I would love to dance with you.”</span> is the correct sentence. Quotations of any length must always be set off with a comma before the quote.
The column that shows the individuals in the study is option E. student. Individuals are the people or objects included in the study. A variable is the characteristic of the individual to be measured or observed. For example, if one wants to do a study about the people who have climbed mountain Everest, then the individuals in the study are the actual people who made it to the top.
<h3>What is a research study?</h3>
Research studies are carried out to discover new information or to answer a question about how one learns, behave and function with the end-goal of benefitting society. Some studies might involve simple tasks like completing a survey, being observed among a group of people or participating in a group discussion.
Therefore, the correct answer is as given above
learn more about research study: brainly.com/question/25959526
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