Chapter 28 Reading Questions Invertebrate Evolution 1. State three characteristics that all animals have in common. 1- multicellular 2- ingest food 3-diploid life cycle 2. Explain the colonial flagellate hypothesis about the origin of animals. They are decended from an ancestor that resembles a hollow spherical colony of flagellated cells. Individual cells became specialized for reproduction. Two tissue layers arose by invagination. 3. Describe the different types of symmetry. Asymmetrical- no
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affect the arthropod diversity. It is known that most eukaryotic organisms are arthropods. However‚ the abundance and richness vary from place to place. It is important to understand the difference across habitat types because it might help to determine which arthropod communities are going to be find in a period of time. Many research have been conducted in order to determine arthropod diversity. Basset‚ Cizek‚ Cuénoud‚ Didham‚ Guilhaumon‚ Missa and Curletti (2012) conducted a study on arthropod diversity
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Insects are the most successful animal group. They are extremely diverse and abundant. They are present in the sea‚ in freshwater‚ on land and in the air. They occupy every ecological niche. Arthropods are not only extremely diverse but are also numerous as individuals. There are approximately 200 million insects for every human being on the Earth.(1) They have a huge impact on humans and our activities. They are pests of both food and animals‚ and are responsible for disease transmission. They also
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Classifying Arthropods Worksheet Name: Date: Fill out the following table with data from the lab exercise: Table I: Record the results of your observations of the external anatomical characteristics of the selected arthropods and their classification. Body Sections (1‚2‚3 or >3) Walking Legs (6‚8 or >8) Other appendages (Y/N) Antennae (0‚2‚4) Claw Present (Y/N) Jaw Present (Y/N) Class Common Name Specimen 1 3 6 N 2 N Y Insecta Stage Beetle Specimen 2 2 8 Y 0 N N Arachnida Whipscorpion
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ARTHROPODS The other complex compartmentalized nervous system is found in arthropods (see the diagram). The arthropodan brain consists of three main regions: the protocerebrum‚deutocerebrum‚ and tritocerebrum. The anterior protocerebrum‚ which receives the nerves of the eyes and other organs‚ contains centres‚ or neuropils‚ such as the optic centres and bodies known as corpora pedunculata. The neuropils function as integrative systems for the anterior sense organs‚ especially the eyes‚ and in control
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English period 1 11 December 2012 Synthesis Prompt- Topic: Do Animals Have Souls? The definition of a soul differs from person to person. To some‚ what makes a human different from the rest of the animals is the soul. Many say that since animals’ intelligence is inferior to that of a human’s‚ they have no soul; since the soul is what makes humans the “master species”. It is revealed that animals are simply composed differently from humans. As said by Descartes‚ animals act solely upon their
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To what extent we can say animals have language? Are animals capable of language? It is in the opinion of the author that animals do not have the capability of language; this essay will focus and put forward the evidence as to why this opinion takes place. Language is a form of communication; it can be visual‚ audio or sensory. In humans the vocal language provides only 10 per cent of how we communicate‚ body language plays a much higher role‚ however‚ both verbal and non verbal language in humans
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2013 Do Animals Really Have Emotions? Animal emotion is a difficult and controversial subject. Scientific research is confirming what humans intuitively know: that animals have feelings and able to experience diverse types of emotions. Skeptics believe there are no possible ways animals can have emotions. They refuse the idea animals experience happiness or any other type of emotions as anthropomorphism; which occurs when humans project their own characteristics or behaviors to animals. Josh Clark
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In order to obtain good health everyone must consume a balanced diet. To do this we must eat recommended amounts of food from the five food groups which are‚ fruit and vegetables‚ meat‚ fish & alternatives‚ bread‚ cereals & potatoes‚ milk & dairy and foods which contain fats and sugar. These five food groups contain the seven components of a balanced diet they are‚ protein‚ carbohydrates‚ lipids‚ vitamins‚ minerals‚ fibre and water. Proteins are made up of long chains of amino acids‚ there are 22
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1 out of 1 points When comparing the two categories of nutrient standards‚ the Dietary Reference Intakes and the Daily Values‚ one difference between the two is: Selected Answer: the Daily Values are used in the United States only. Answers: the Daily Values are used in the United States only. the Dietary Reference Intakes are to be used on food labels. the Daily Values are a better way of determining nutrient goals of individuals. the Dietary Reference Intakes do not account for age
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