Which statement is true about acceleration due to gravity?
Select one:

Acceleration due to gravity is not the same for every object.

Acceleration due to gravity is not affected by mass.

There is no difference between acceleration due to gravity and acceleration from an unbalanced force.

Force is not affected by acceleration due to gravity.

Answer: There is no difference between acceleration due to gravity and acceleration from an unbalanced force.

Explanation: is the correct answer

Which of the following examples is a non-renewable source of energy?
wood
natural gas
hydroelectric
wind

Using scientific language explain first why the earth goes through seasons (winter, spring, summer, fall) and then explain specifically why Canada can get so cold while other parts of the world stay warm?
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By what process is sunlight converted into stored energy and finally changed into fossil fuels?
phototropism
photocatalysis
photolysis
photosynthesis

Why is humus an effective fertilizer? (Select all that apply.)
It is abundant in inorganic nutrients.
It is dense and does not contain organic matter.
It is rich in organic matter.
It doesn’t need microorganisms to decompose matter.

How many carnivores are there compared to herbivores?

name one financially destructive fungi

An environmental chemist would do which of the following?
a.
Determine where compounds and elements in the earth came from
c.
Study pollution or the shrinking ozone layer
b.
Study the reactions of compounds on the earth
d.
All of the above


Please select the best answer from the choices provided

A
B
C
D

The woolly mammoth lived a long time ago when the climate of Earth was very cold. They had a thick layer of fat to keep them warm, long tusks for digging in the snow, and hair that covered their bodies. The woolly mammoth ate grasses and plants. As Earth's climate became warmer, humans began to move into areas where the woolly mammoth lived. They became extinct thousands of years ago.

Which does NOT describe a reason that the woolly mammoth became extinct?
A.
Humans removed all of the predators from the area.

B.
Humans began to hunt the woolly mammoth.

C.
The food supply changed with the climate.

D.
The woolly mammoth could not adapt to a warmer climate.

In angiosperm, what is the female structure of the plant called?
pistil
spore
stamen
pedicel


P l s H e l p M e T h a n k Y o u

Heres the text
In the spring of each year, the second largest dead zone in the United States forms in the Gulf of Mexico. During the spring, farmers fertilize their land as they prepare for crop season. As a result, nutrients from the fertilizers, such as nitrogen and phosphorus, drain into the Mississippi River and eventually the Gulf of Mexico. According to the National Oceanic and Atmospheric Administration, “Excess nutrients that run off land or are piped as wastewater into rivers and coasts can stimulate an overgrowth of algae, which then sinks and decomposes in the water” (NOAA, 2018). The decomposition process consumes and depletes oxygen levels in the Gulf of Mexico, which causes hypoxic areas or dead zones.



A group of scientists measured several water quality parameters to better understand how dead zones in the Gulf of Mexico impact brown shrimp populations over time. The scientists are most interested in the dissolved oxygen levels because the levels are critical for the survival of brown shrimp populations. Brown shrimp populations thrive when dissolved oxygen levels in the Gulf of Mexico are greater than 2 mg/L. However, the populations cannot thrive when dissolved oxygen levels are at or below 2/mg/L.

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Which statement correctly describes the interaction between the organisms shown in the food chain?

kelp ---> sea urchins ---> sea otters
A.
Sea otters and sea urchins have a predator–prey relationship.

B.
Kelp and sea otters have a predator–prey relationship.

C.
Sea otters and sea urchins have a competitive relationship.

D.
Kelp and sea urchins have a competitive relationship.
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Which of the following explains one of the ways plants and animals depend on each other?
A.
Animals release carbon dioxide when they breathe, which plants take in to help make food.

B.
Animals release water vapor when they breathe, which plants take in through their leaves.

C.
Animals make minerals, which plants take in through their roots and pass up to their stems.

D.
Animals make their own food, which plants take in through their roots and pass to their leaves.

======================================================================
Which statement describes the BEST example of animals avoiding competition?
A.
A family of deer leave a crowded area of forest.

B.
Cheetahs and lions feed on the same prey.

C.
A bee pollinates a flower.

D.
A bird finds a spot in a tree to put a nest.
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The food chain represents a what-eats-what relationship that transfers energy from one organism to another.

Sun → flower → rabbit → [ ? ] → owl

What type of animal is most likely to be missing from the food chain?
A.
herbivore

B.
decomposer

C.
carnivore

D.
producer

If we know myofibrils are made of protein strands, what would expect to find a large number of in the myofibrils themselves.

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Where does photosynthesis take place in the leaf?
along the leaf blade
throughout the veins
in the chloroplasts
between the xylem tissue

Which is true of action and reaction forces?
Select one:

They are unequal and in the same direction.

They are equal and in the same direction.

They are unequal and in the opposite direction.

They are equal and in the opposite direction.

The weather is getting much warmer after a cold winter. What is a common physical response with certain mammals?
A. Mammals will grow bigger in the heat.
B. Mammals will shed much of their fur or hair to help them cool off and maintain their body temperature.
C. Mammals will move closer to water and beaches to stay cool.
D. Mammals will depend on other animals or humans to help keep them cool.

What is an indicator of healthy soil?

more organic material than inorganic material

more inorganic material than organic material

a balance of organic and inorganic materials

Name one financially destructive fungi

What classification of plants has flowers? angiosperms gymnosperms ferns green algae

How do digital signals compare to analog signals in terms of data transmission over long distances? Please write in an easy way so I can understand what your saying.

how would society be different without the development of biodiversity?

Using your new vocabulary words, explain the difference between mass and weight and how these concepts relate to gravity.

What type of energy is used by your body when you eat food?
thermal energy
gravitational energy
electrical energy
chemical energy

It has taken you 10 minutes to go 75 kilometers, How fast are you moving?

(And please do not respond with suspicious links :)

Identify at least one technology that uses digital encoding or transmission and explain how it does that. (examples could be some scientific equipment or medical equipment/devices)

Where does photosynthesis take place?
in the stem of a plant
in the roots of a plant
in the chloroplasts of a leaf
in the stomata of a leaf

Non-native Burmese pythons have established a breeding population in South Florida and are one of the most concerning invasive species in Everglades National Park. Pythons compete with native wildlife for food, which includes mammals, birds, and other reptiles. Severe mammal declines in Everglades National Park have been linked to Burmese pythons.

Scientists think that the issue is the pythons are killing alligators in the area. Which question below would BEST help to support the scientists theory?



A.
Do pythons squeeze their prey?

B.
Do pythons swim in water?

C.
Do homeowners trap and kill the Burmese python?



D.
Do more animals disappear in areas where pythons have been reported?

i have a question that goes with these

what is a natural system???