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Artyom0805 [142]
3 years ago
5

A scientist working in a lab wants to determine the precise pH of a solution. Which tool should the scientist use to measure pH?

Biology
2 answers:
Leviafan [203]3 years ago
5 0
Universal indicator
fomenos3 years ago
3 0

PH meter, which is a device used to measure hydrogen-ion activity in the solution. A PH meter is a voltmeter stuck to a pH electrode and a reference electrode. -maclittleseed

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Please help. I will mark you as brainliest and give you points :)
inessss [21]

Answer:

A hummingbird feeding: Mutualism

Explain Interaction: The hummingbird drinks the nectar from the flower and the hummingbird may help pollinate the flower.

I'm a bit confused by the plants on the floor one.

Plants on a Forest Floor: Competition

Explain Interaction: The plants on the forests floor compete with each other for the same resources. Both may not receive enough of those resources. Note: When I was around Middle School and High-school I was only taught mutualism, commensalism, and parasitism, so let me know if competition is not a choice your teacher gives you to choose from or wasn't taught to you

Flea bites human: Parasitism

Explain Interaction: The flea drinks the persons blood as food and the person is hurt. Flea bites can be itchy and become painful. Fleas may also also carry disease.

Clownfish in Anemone: Mutualism (although I hear some people say commensalism)

Explain Interaction: The anemone provides protection and a place to live for the clownfish. The anemone may eat bits of food left over from the clownfish.

7 0
3 years ago
Choose the characteristic of living things that you think is most important. Explain why you chose that characteristic.
kogti [31]

Answer:

Reproduction

Explanation:

Reproduction is a very important process which can only be carried out by living things. It plays a crucial part in ensuring the species does not go extinct because only through reproduction can you make copies of the certain being.

5 0
3 years ago
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Can someone please help me with this question!? The answer is correct I will mark you as the best! Thx
dalvyx [7]

Answer:

prokaryotic genomic DNA is attached to the plasma membrane in the form of a nucleoid, in contrast to eukaryotic DNA, which is located in a nucleus . Prokaryotic contain circular DNA in addition to smaller, transferable DNA plasmids. Eukaryotic cells contain mitochondrial DNA in addition to nuclear DNA.

6 0
3 years ago
2. A heart attack occurs when an artery in the heart is blocked, restricting the flow of blood. Why would a heart attack be acco
lorasvet [3.4K]
Your heart pumps blood so it can circulate to your tissues as well as get oxygen from your lungs, if your heart can’t pump blood well i.e. heart attack you can feel short of breath
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3 years ago
What is true of all matter?
Lorico [155]
The correct answer is C. it takes up space and has mass.
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8 0
3 years ago
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