There are several critics on the issue of students taking snacks or food to class. Some teachers say that it will cause too much distraction, reducing student's ability to learn as they will share snacks and will be looking at what other students brought to class.
However, consider the fact that middle school learners are growing at an incredible rate. Their body needs energy and their minds get tired if they spend too much time withouth eating. Food is like fuel to the brain. Allowing snacks will actually increase sutdnet's ability to learn as it will take away the distraction of hunger.
The fourth one is correct
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.
<span>Abraham Lincoln was the best president of the United States OF America because he freed the blacks from slavery which ended into a civil war over slavery so that proves that MR.Lincoln was the best US president of the united states of america</span>
Because his death was in a way always going to happen, it was fate. He died when Romeo killed him because of his friends death at Tybalts hand. Tybalt was always going to die because it was his fate.
