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1. (10 pt) All echinoderms move by pumping water into their tube feet, and their body is protected by hard plates. What other characteristic is common to all echinoderms? A. They have tentacles. B. Their bodies have radial symmetry. C. Their bodies are made up of a head, thorax, and abdomen. D. They have eyespots.

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What conditions must be present before giving oral glucose as an emt?

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What happens to a spermatid to change it into a sperm cell? Meiosis occurs, making the sperm cell haploid. The nuclei of two polar bodies fuse, making a diploid cell. A tail is added, making the sperm a motile cell. A membrane hardens, making the sperm a nonmotile cell.

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Polyp animals that form coral reefs have many unique adaptations for survival. One polyp feature that is detrimental rather than beneficial is A) secretions that produce a hard protective skeleton. B) the inability to leave the reef and swim after prey. C) stinging cells that kill prey and discourage predators. D) symbiotic relationships with algae that photosynthesize and feed them.

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What do the larva and pupa stages have in common? Both stages take place in the water. Both stages involve external changes that take place. Both stages require the mosquito to emerge onto the water’s surface. Both stages require hardening of the mosquito’s body.

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According to the Hardy-Weinberg principle, which of the following is most likely to disrupt genetic equilibrium

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Magma that forces across rock layers hardens into a a. sill. b. volcanic neck. c. dike. d. batholith.

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What kind of wound occurs when the skin scrapes against a hard surface and tiny blood vessels break in the outer layer of the skin? a. abrasion b. avulsion c. laceration d. puncture

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What landform is created when magma squeezes between rock layers to form a hardened slab of rock? a. volcanic neck b. dike c. lava plateau d. sill

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Which of the following would cause the rodent population to not be in hardy-Weinberg equilibrium

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Which of the following conditions are NOT applicable to the Hardy-Weinberg Equilibrium? Absence of natural selection Stable genome Assortive mating

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Help would be much appreciated. The one who supplies the correct answer will be marked as “BRAINLIEST ANSWER” Thank you! How has biotechnology improved farming and modern agriculture? A: through decreased loss of crops tests B: by improving antibiotics for treating plant diseases C: through decreased shelf life of some fruits D: by destroying insects that destroy plants

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*This is a Psychology question* Which statement is true? A) Eugenicists believe that all traits are hard-coded in an individual’s genes at conception. B) Culture has no influence on an individual’s behavior. C) Environmental factors determine the color of a person’s eyes. D) RNA and DNA play the same roles in gene expressions

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BIO EXPERTS!!!! very confused! In a population of a plant species, 225 plants are tall, while 26 are short. The height of the plant is controlled by a single gene, and only two alleles are present in this population:T (tall) and t (short), with t being recessive to T. The table below shows the number of short and tall plants over the next several generations: Generation_Tall Plants (T)_Short Plants (t) |____1____|____225____|____26_____| |____2____|____275____|____28_____| |____3____|____233____|____23_____| |____4____|____281____|_____21_____| |____5____|____295____|____18_____| 1. Using the Hardy-Weinberg equation, is evolution occurring in this population? Explain your answer. 2. Describe how an increase in competition for sunlight would affect the frequency of T and t over time.

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(20 points!) Answer both correctly for best answer When might preserved remains of an entire organism form? 1. when sediment buries the hard part of an organism 2. when an event such as a quick burial or freezing preserves an entire organism 3. when minerals replace parts of an organism 4. when a thin layer of carbon is left on a rock Which of the following fossil types is best described as forming when minerals replace all or part of an organism’s body? 1. a mold 2. a petrified fossil 3. a cast 4. a trace fossil

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When you cook an egg, the clear protein in the egg white becomes harder and whiter as it cooks. This happens because the hear

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Match the correct properties and characteristics to each type of rock. sedimentary igneous metamorphic A)) cooled magma B)) deposition of material on Earth’s surface or in bodies of water C))arises from transformation of existing rocks D))made of layers that are weathered relatively easily E))made of hard layers formed under high temperature and pressure F))has a shiny surface throughout

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Answer Please I am begging you!! Who ever get it 1st, I will put as brainliest!!!!

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The Hardy-Weinberg Principle is that genetic frequencies in a population… A. Will remain stable from generation to generation. B. Will always be changing. C. Will not be affected by environmental changes. D. Are always in a 3:1 ratio

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Fossils can be formed in the mud because Mud can enclose the dead organism Mud can prevent oxygen from reaching the dead organism Over time mud can harden into rock Mud can be found everywhere

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Planet A is an inner planet with no moon and hardly any atmosphere. Planet B is an inner planet with no moon but with a dense atmosphere. Which pair of planets is being described?

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Is slate harder than shale?

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Is gneiss harder than granite?

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Organisms with hard parts stand a good chance of being fossilized if they are _____.

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Which is the best way to tell your partner that you are not ready to be sexually intimate select one of the options below as your answer: a. say that you are worried about what your friends will think of you. b. say that you are not ready and hope that he or she will respect that. c. say that if he or she pressures you too much, you will break off the relationship.?

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Why would it be hard to find the ideal CO2 level if the light intensity were very low?

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Describe how cancer cells are different from other cells. Based on that, explain why cancer is so hard to cure.

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Briefly describe two ways in which the Hardy-Weinberg equation can be used to get information about a population

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Iguanas and similar animals are members of a group called reptiles how do reptiles differ from other animals A have internal heat B have scaly skin hardened by keratin C have an endoskeleton D are land dwellers

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. This ecosystem is common in central and northern Asia. Flora include mosses, grasslands, and hardwoods. Animals of this ecosystem include Siberian tigers, antelopes, sheep, and snow leopards. What ecosystem is described in the paragraph above?

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