The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away, winter can be expected.
Answer:
Not more than 7 credit hours
Explanation:
Though the credit hours varies by institution, the standard for most institution is 3 - 6 hours for working class students.
From the list of given options, the closest to 3-6 hours is "not more than 7 hours"; hence, option D answers the question.
Answer:
The quarter rest indicates that you remain silent (take a rest from playing) for one beat. You can count these measures as "one two three."
The zebra mussel is an invasive species that decrease the carrying capacity of native species by competing for limited food resources. Invasive species are harmful to the homeostasis of an ecosystem.
The carrying capacity refers to the maximum population size of a species sustained by specific environmental conditions.
The factors that affect the carrying capacity include the availability of both biotic (e.g., food, presence of invasive species, etc) and abiotic (e.g., water, habitat) resources.
For example, Zebra mussels, and Quagga mussels are invasive species that can decrease the carrying capacity of native mussels by taking away limited food and attaching themselves to the native mussels.
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