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daser333 [38]
3 years ago
9

11

Biology
1 answer:
Dovator [93]3 years ago
7 0

Answer:

Forceps should be used because directly touching the substance and dropping it into the acid with your hands can cause harm to yourself, and it can also prevent contamination of the substance.

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Human activity has a great impact on the quantity and quality of local water supplies. Humans can try to increase awareness and
kondaur [170]

Answer:so wrong of you some people ACTUALLY need the answer ... the answer is A

Explanation:

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3 years ago
Why do your fingers look like prunes after swimming for a long time?
Alina [70]

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pruney fingers are caused by shrinking blood vessels. When you soak in water, your nervous system sends a message to your blood vessels to shrink. Your body responds by sending blood away from the area, and the loss of blood volume makes your vessels thinner.

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2 years ago
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What might happen to a person if their kidneys were not functioning properly. Where would waste go?
wariber [46]

The wastes would build up in your blood, and can cause serious damage. You can also have serious infections and pain if your kidney is not functioning properly.

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2 years ago
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Restriction enzyme HinfI cleaves a five nucleotide DNA sequence GA(A/T)TC. The ambiguity in the central position - (A/T) - means
Afina-wow [57]

Answer:

C) 2.0 kb

Explanation:

It is given that out of the 4 nucleotides A, T, C & G each one has equal probability to occur at any position on the DNA molecule which simply means that the probability of occurrence of any nucleotide at a position is 1/4.

Also, it is given that probability of occurrence of either A or T at 3rd position is equal which means that the probability at that particular position will be 2/4 = 1/2.

Now, GA(A/T)TC is the DNA sequence where Restriction enzyme HinfI cleaves so the total probability of an average HinfI cleavage fragment will be = 1/4 x 1/4 x 1/2 x 1/4 x 1/4 = 0.00195 = 0.2 i.e. 2 kb.

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3 years ago
What type of energy is presented in the batteries of a flashlight?
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Chemical then light energy plz mark me brinliest
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