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Luden [163]
3 years ago
6

Help its a timed test ​

Biology
1 answer:
stiks02 [169]3 years ago
3 0

Answer:its d

Explanation:

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1. formaldehyde
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3. tobacco smoke
4. toronto smog
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Which taxon group is the smallest? *<br> A. Domain<br> B. Species<br> C. Phylum<br> D. Kingdom
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Explanation:

phylum is your answer

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What is the molecular formula of water​
torisob [31]

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What are the distinguishing characteristics of invertebrates that differ from vertebrates?​
vesna_86 [32]
<h3>{Differences in Physical Characteristics}</h3>

Vertebrates have a skeletal structure with a spinal column or backbone.Invertebrates have no backbone, while vertebrates have a well-developed internal skeleton of cartilage and bone and a highly developed brain that is enclosed by a skull.

Explanation:

<h3>{Invertebrates}</h3>

•Invertebrates do not possess a backbone not an internal skeleton.

•Invertebrates have an exoskeleton.

•Body size varies but most are generally smaller than vertebrates. However, some invertebrates grow to gigantic proportions – such as the colossal squid (46 feet in length).

<h3>{Vertebrates}</h3>

•Vertebrates possess a backbone and an internal skeleton.

•Vertebrates do not possess an exoskeleton.

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6 0
2 years ago
In this lab, we'll be using PCR to make many copies of a small region of your personal DNA genome. It is a very bad idea to touc
Luden [163]
Sounds like a trick question.

Maybe not. contamination is easy, but gloves are a barrier between other organic material on yourself (such as what you ate for lunch) and what you are testing.

Other than the fact your DNA will be different than another person’s DNA, if we assume you are theoretically free of debris of any kind, then your DNA would test the same always.

Note: any contamination after purifying extract for a small sequence can give false positives. There are repeat sequences possible that would interfere if you are testing a small enough sequence.

I hope that helps!
4 0
3 years ago
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