Answer:
<em>The correct option is A) cadmium dosage</em>
Explanation:
In an experiment, an independent variable can be described as a factor which is changed naturally or by us to see its effect on the dependent variable. The dependent variable is the variable which is under study and depends on the independent variable.
In the following experiment, we are checking the effect of different dosages of cadmium on the surviving ability of tadpoles. Hence, cadmium dosage is the independent variable. Tadpole population is the dependent variable.
The population of moose will still be around 850 in 30 years.
<h3>What is carring capacity?</h3>
Carrying capacity is the number of individuals that an environment can support without significant negative impacts to the organism and its environment.
With that being said, the moose population size will be same or still 850 after 30 years. Rate of plant growth on isle Royale supported in equilibrium moose population of 850 moose and if there will more 200 mooses arrived then there will be no sufficient plants available to feed those additional mooses. This is the concept of carrying capacity. Carrying capacity is defined as the species average population size in particular habitat. Species population size is restricted by environmental factor like food, shelter, etc. If number of mooses will be increased in particular habitat and plants are limited ,then there will be strong competition between them, which results in survival of the fittest.
So when population size increases on Isle Royale,may be in beginning, for a while there will be sufficient plants to feed those additional 200 mooses, but after some time plant population will reduce and there will be not enough plants to feed all of the mooses. And if needs are not met, population will decreases which allows plants to grow in normal population to feed 850 mooses. So, after 30 years moose population size would be around 850 mooses.
See more about ecology at: brainly.com/question/13046612
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Answer:
New York City: temperate deciduous forest
Seattle: temperate wet forest
Explanation:
New York City is characterized by a <u>Temperate Deciduous Forest biome</u>. This indicates that its climate is not stable but, instead, faces constant changes. The seasons are clear and marked, e.g. summer is warmer and trees begin to lose their leaves during fall (as it is supposed to be). New York's biome is also characterized by the presence of rain throughout the year. Plants such as conifers and mosses are predominant and wildlife species like red foxes, squirrels, and owls inhabit in this city / biome.
Seattle, on the other hand, is characterized by a T<u>emperate Wet Forest biome</u>, that is, warm and dry-summer subtropical climate. The seasons are marked but not as predominantly as in New York. Seattle is also characterized by more humid conditions in contrast to New York. Moreover, summers tend to be drier and warmer, making it more vulnerable to bushfires. Plants such as the western red cedar and the ponderosa pine are predominant and wildlife species like deers, coyotes, and bears inhabit in this region.
