Food webs with fewer species are more sensitive to the loss of species and ecosystem disturbances
(B) The isolated hectare plots increase the ability of individuals to disperse from one habitat to another.
<h3>What is a Ecologist?</h3>
In the 1990s, the reintroduction of wolves to Yellowstone National Park garnered widespread media attention and significantly increased the park's biodiversity. Unfortunately, the spread of exotic species like zebra mussels, Kudzu vines, and Burmese pythons in other regions of the United States more than offsets this success for native ecology.
The diverse roles that different species play in their communities make changes to those ecosystems very disruptive. Ecologists can aid us in making better decisions that reduce the effects of our actions on other species and the world by deepening our understanding of how nature functions.
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Hey there!
<span>The near extinction of many bird species was caused by:
Answer: </span>
<span> use of DDT
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Answer:
The correct answer is-
Hypothesis: Antibiotics cause weight gain in cows.
Independent Variable: Antibiotic pill
Dependent Variable: Weight of cow
Control Group: a group of cows gets a placebo pill
Experimental Group: a group of cows gets an antibiotic pill
Explanation:
The Independent variable is the variable that causes the response from the dependent variable or affects the dependent variable in this study the antibiotic pill affects the weight of cows so The independent variable is an antibiotic pill and the dependent variable is the weight of cows.
The control group is the group of subjects that did not get the treatment in a scientific study in the case of this study group of cows that receives the placebo pill is the control group and the experiment group is subjects that receive the treatment which is a group with the antibiotic pill.