You squeeze the bulb and place it on the wide end of the pipet. Then you place the tip of the pipet in the solution and release your grip to pull it into the pipet.

B is wrong, unless you want to accidentally get a mouthful of the sulfuric acid or cyanide you are pipetting.

C and D are wrong. Even the wide end of a pipette is too narrow to fill with either a beaker or an eyedropper.

5 0

3 years ago

What is the relationship between biodiversity and an ecosystem's ability to withstand change?

Klio2033 [76]

Answer:

Explanation:

Inversely proportional

4 0

2 years ago

What is the expected size of the plasmid plus the cut foreign dna?

Sholpan [36]

<span>The size of plasmids<span> ranges between 1 and 200 kbp (kilo-base pairs) and a DNA fragment that can be inserted into a </span>plasmid vector is up to 20 kbp. Artificially constructed plasmids are often used as vectors in genetic engineering to clone and amplify (or express) particular genes. </span>

8 0

3 years ago