Answer:
Explanation:
Agnatha (Ancient Greek is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species. The group is sister to all vertebrates with jaws, known as gnathostomes.
Recent molecular data, both from as well as embryological data[8] strongly supports the hypothesis that living agnathans, the cyclostomes, are monophyletic.
The oldest fossil agnathans appeared in the Cambrian, and two groups still survive today: the lampreys and the hagfish, comprising about 120 species in total. Hagfish are considered members of the subphylum Vertebrata, because they secondarily lost vertebrae; before this event was inferred from molecular and developmental data, the group Craniata was created by Linnaeus (and is still sometimes used as a strictly morphological descriptor) to reference hagfish plus vertebrates. In addition to the absence of jaws, modern agnathans are characterised by absence of paired fins; the presence of a notochord both in larvae and adults; and seven or more paired gill pouches. Lampreys have a light sensitive pineal eye (homologous to the pineal gland in mammals). All living and most extinct Agnatha do not have an identifiable stomach or any appendages. Fertilization and development are both external. There is no parental care in the Agnatha class. The Agnatha are ectothermic or cold blooded, with a cartilaginous skeleton, and the heart contains 2 chambers.
While a few scientists still regard the living agnathans as only superficially similar, and argue that many of these similarities are probably shared basal characteristics of ancient vertebrates, recent classification clearly place hagfish (the Myxini or Hyperotreti) with the lampreys (Hyperoartia) as being more closely related to each other than either is to the jawed fishes.
Answer:
All three clauses in the sentence are independent clauses:
1. She turned left
2. he steered right
3. and I kept going straight ahead
Explanation:
An independent clause is a group of words that can convey a complete thought on its own, being able to stand alone as a sentence. In other words, when you read an independent clause alone, it makes perfect sense.
In the sentence we are analyzing here, three independent clauses were put together, combined with a comma between the firs two, and a comma plus the coordinating conjunction "and" between the final two.
"She turned left, he steered right, and I kept going straight ahead."
If we separate each clause, they will still make perfect sense alone:
1. She turned left
2. he steered right
3. and I kept going straight ahead
Answer:
Some of the problems one may face when listening to a lecture include being unable to remember the content being dictated to you. Another would be an inability to write as fast as the lecturer is speaking. One may copy down incorrect information when trying to keep up with what is being said. When trying to write information down quickly, one may be unable to write neatly enough that they are able to read back on their information. If you are too busy trying to copy down as much as you can, you may even miss out on the most important information.
I think 5. should be the 3rd option, but 5 and 6 look good. I am not sure about 7, sorry >.<
