Phylum Porifera  Basic Characteristics No definine symmetry Bodies are multicellular‚ with few tissue and no organs. The cells and tissues surround a water filled space but there is no body cavity. Has no nervous system Has a larval stage. Are all filter feeders. Sponges are among the oldest animals‚ being discovered about 500 million years ago! Phylum Cnidaria JellyFish  Basic Characteristics Live in both fresh water‚ and salt water. Radial Symmetry; typically quadramous
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Question 1 1 out of 1 points Identify the cell membrane within the plant cell figure: Plant Cell_Exam 1.png Selected Answer: A Correct Answer: A Question 2 1 out of 1 points The activation energy required for a catalyzed reaction is ___________ compared to an uncatalyzed reaction. Selected Answer: D. lower. Correct Answer: C. lower. Question 3 1 out of 1 points Identify the cell wall within the plant cell figure: Plant Cell_Exam 1.png Selected Answer: D
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1. Fossils found in the lowest geological strata are generally the most advanced. complex. x primitive. widespread. specialized. 2. The place Darwin visited on his trip around the world that had the greatest impact on his thinking was the Canary Islands. Africa. the Hawaiian Islands. x the Galapagos Islands. Brazil. 3. According to Darwin‚ natural selection is based on the ____ found in populations. acquired characters x variations weakest members noncompetitors similarities
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LIVING THINGS * All living things come from other living things. * Ex: One single celled organism to another * DNA is copied & passed to offspring * The signature molecule of life * Ex: embryo- cells continually divide & develop EVOLUTION * Why do some organisms seem suited for their environment * Ex: Hummingbird- long beak for nectar in certain flowers * Ex: Cheetahs- take down faster prey * Adaptation- inherited characteristic that
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LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) In the event of a chemical splash to the eyes‚ flood the eyes for at least 15-30 minutes with water. Flush from the eye outward. If you were not wearing proper eye wear‚ a chemical could splash into your eye and would make it necessary to use this. b. Fire Blanket (2 points) Used in order to put out a small fire. If a small area of the lab caught
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Yr 12 Biology Summary Notes Rangitoto College 2006 STRUCTURE AND FUNCTION IN CELLS Achievement Standard 90464 – Biology 2.8 – Describe cell structure and function TYPES OF CELLS • PROKARYOTIC CELLS = more primitive‚ unicellular‚ have no organised nucleus‚ no membrane-bound organelles‚ genetic material is 1 circular DNA molecule‚ can have tiny extra rings of DNA called plasmids‚ all have cell walls e.g. bacteria and blue-green algae • EUCARYOTIC CELLS = unicellular
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1 of 20 The subatomic particles that play the greatest role in cellular chemical reactions are electrons. protons. neutrons. isotopes. Question 2 of 20 The structural unit that retains the properties of an element is the molecule. atom. cell. electron. Question 3 of 20 Which of the following are found in the nucleus of an atom? Protons Neutrons Electrons A and B Question 4 of 20 The component of an atom or molecule that is most important
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CODE-Y NEET-UG – 2013 TEST PAPER WITH ANSWER (HELD ON SUNDAY 05th MAY‚ 2013) 1. The eye of octopus and eye of cat show different patterns of structure‚ yet they perform similar function. This is an example of : (1) Analogous organs that have evolved due to divergent evolution (2) Homologous organs that have evolved due to convergent evolution (3) Homologous organs that have evolved due to divergent evolution (4) Analogous organs that have evolved due to convergent evolution (4) Select the correct
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Graphing Practice Name ___RaeAnne Phillips________________________________ Date __________ ▪ Save this file as a WORD document with a new name (LastNameGraph1) ▪ Use Create a Graph (http://nces.ed.gov/nceskids/graphing/) to graph the following data sets. ▪ Copy and paste the graphs AFTER each data set. ▪ Answer the questions AFTER each graph. ▪ Save Frequently! ▪ Email me (mruthenberg@findlaycityschools.org) the finished document. 1. Baby chickens‚ like all baby birds‚ require a constant
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Singer‚ songwriter. Jackson was born August 29‚ 1958‚ in Gary‚ Indiana‚ to an African-American working-class family. His father‚ Joseph Jackson‚ had been a guitarist but had put aside his musical aspirations to provide for his family as a crane operator. Believing his sons had talent‚ he molded them into a musical group in the early 1960s. At first‚ the Jackson Family performers consisted of Michael’s older brothers Tito‚ Jermaine‚ and Jackie. Michael joined his siblings when he was five‚ and emerged
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