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xenn [34]
2 years ago
5

Which of the following numbers, on the pH scale, would indicate that a substance is acidic? Group of answer choices 12.0 13.5 8.

0 5.0
Biology
2 answers:
stiks02 [169]2 years ago
6 0

Answer:

Explanation:

A

mafiozo [28]2 years ago
6 0

Answer:

13 am I write please say you because I an 17

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What might be some challenges of working in a forensic biology lab?
OleMash [197]

Answer/Explanation:

  • You would have to be very careful of cross-contamination. That means you would have to work very carefully and precisely with protective clothing, ensuring that none of your DNA (from skin or hair or even trace) gets into the sample you are working with
  • You would have to be very careful to check and record samples properly to ensure nothing got mixed up or mislabeled and this could be disastrous for criminal cases
  • All the material is very precious and sometimes only one sample exists, so you have to avoid making any mistakes. Experiments can't always be repeated.
5 0
2 years ago
If the mouse was in a wire cage and only the weights of the mouse, food, and water were considered, would you come to the same a
zalisa [80]

Answer:

Here is the full question:

(A) If a closed container contains a mouse as well as enough food, water, and oxygen for the mouse to live for 3 weeks,

How much will the container weigh 1 and 2 weeks later after the  mouse has eaten, drunk and exercised (respiration is CO2 emission), and why?

(B) If the mouse was in a wire cage and only the weights of the mouse, food, and water were considered, would you come to the same answer as in (A) and why?

Explanation:

(A) The mouse will weigh the same. This is because solids, liquid, and gases cannot escape the closed container. All of the life processes involving reactions conserve the atoms involved. Some of those atoms will appear in the form of gases, some as solids, and others as liquids but all will be retained in the closed container.

(B) In a wire cage, gases can escape. This means that the weight will not be the same after 1 and 2 weeks. The weight would be less than the original weight of the mouse, it's food, and it's water.

6 0
3 years ago
There are 3 types of polar bears: ones with thick coats, ones with thin coats and ones with medium coats. It is fall, soon to be
Ratling [72]

Answer:

the one with the thickest coat will stay the warmest

Explanation:

5 0
3 years ago
Homologous structures are defined as anatomical structures originating from the
ValentinkaMS [17]

Explanation:

An example of homologous structures in vertebrates is

where the wings of bats, front flippers of whales, and forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.

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3 years ago
Name the two gases that are exchanged when someone breathes
Mrac [35]
Carbon dioxide and oxygen
4 0
3 years ago
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