BIOLOGY MIDDLE SCHOOL

Which of the following populations would be least likely to survive a change in its ecosystem? A. brown bears that can eat a variety of different kinds of food B. koalas that eat only eucalyptus leaves C. grasses that can grow in normal or contaminated soil D. bacteria that can grow in both hot and cold environments

Answers

Answer 1
Answer:

koalas that eat only eucalyptus leaves C. would least likely survive in a change of ecosystem.

What are the Kaolas?

The koala or koala bear refer to arboreal herbivorous marsupial that are majorly found in Australia. It is the only remaining representative of the family Phascolarctidae and its closest living relatives are the wombats.

They survive in most climate.

Therefore, koalas that eat only eucalyptus leaves C. would least likely survive in a change of ecosystem.

Learn more about Koala from the link below.

brainly.com/question/15900498
Answer 2
Answer: b. defiantly b. because it can survive in most climates.

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Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction? (2 points) It is unchanged and can be used again for the same chemical reaction. Its mass decreases since part of the molecule is used up. Its shape changes, giving it different chemical and physical properties. It becomes chemically bonded to the products of the reaction.

Answers

Answer:

It is unchanged and can be used again for the same chemical reaction.

Explanation:Test taken.
I think the answer is either A or D

Consider an atom that has 9 electrons. How many electrons would be found in this atom's valence shell?​ ​

Answers

Answer: 7 electrons

Explanation: In the first orbital shell it can only hold a maximum of 2 electrons.

The second orbital or energy level it can hold a minimum of 1 and maximum of 8 electrons.

Since the first shell has 2 electrons it means that the second shell has 7 electrons.

three children exhaust themselves trying to push a large rock that does not budge. have they done any work? explain your answer.

Answers

No, because it says "does not budge" which means it doesnt move at all.

well if it hasn't budged then not really other than eliminate idea number one witch is push the boulder themselves.

Describe two ways in which waves travel, and give an example of each.

Answers

Answer:

Basically, sound waves carry noises through the air to our ears. SEISMIC WAVES travel inside the Earth and cause earthquakes. Light, heat, radio, and similar types of energy are carried by a variety of waves in the ELECTROMAGNETIC SPECTRUM. Some energy waves need a medium, such as water or air, through which to travel.

Explanation:

TO SEE FULL QUESTION PLZ GO TO FILE BELOW YOU CAN NOT ACCESS FILE IF YOU'RE ON A PHONEThe table shows samples of contaminated soil from four different sites. In the sample from Site 3, which
contaminant is present in the greatest concentration?
A Cadmium
B Copper
C Lead
D Zinc
11 p=.
The graph shows the interior temperature of a box
with a heat lamp shining on its outside walls. The
best estimate of the interior temperature after 5
hours is —
A 50◦C
B 55◦C
C 60◦C
D 65◦C

Answers

There is no file. I will answer in the comments

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A. True
B. False

Answers

It’s hard to tell it might be a scavenger but it’s down the line
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