Name: _____________________________________________ Date: __________________ Hour: _______ Asexual vs Sexual Reproduction Organism Identification There are over 1.5 million species of living things on the planet. All of them must reproduce, either asexually or sexually. Asexual reproduction is a process that requires only one parent, and produces offspring that are genetically identical to the parent. Sexual reproduction requires DNA from sperm and egg cells that combine to form offspring that are genetically unique. Go to https://learn.genetics.utah.edu/content/basics/reproduction/and use the information to complete the chart below identifying what type of reproduction each organism uses, and explain your answer using evidence from the description for each animal. The cart continues on the back of the page. Honey bee Pink salmon Sunflower Both types of reproduction. Sexual Reproduction Salmon live in the ocean, but they reproduce in freshwater streams. When mature, they migrate upstream to the place where they were born. Many swim great distances and only the fittest salmon survive the journey. The female digs one or more nest holes in the stream bed. As she deposits her eggs, a male covers them with sperm. The salmon die soon after Sexual reproduction Like other flowering plants, the sunflower relies on insects for reproduction. Bees searching for nectar inadvertently pick up pollen and spread it from flower to flower. When sperm-filled pollen grains contact the stigma, they grown a pollen tube that reaches into the ovary. Sperm travel down the tube to fertilize an egg. The head of a single sunflower contains hundreds of tiny flowers that each produce a seed Sexual Reproduction Leopard frogs breed in ponds or streams. The male calls with his voice to attract a female. He then grips the female tightly, triggering the release of her eggs and his sperm. Tiny tadpoles emerge shortly thereafter. Those that survive go through metamorphosis to become land-dwelling, adult frogs. Asexual reproduction sh Baker’s yeast Bald eagle Evidence The queen honey bee mates once to collect all the sperm she will need in her lifetime. Back at the hive, she uses the sperm to fertilize some eggs while leaving others unfertilized. Fertilized eggs become females, and unfertilized eggs become males. One chosen female will be raised as the new queen. Th Leopard frog Asexual or Sexual Reproduction is ar stu ed d vi y re aC s o ou urc rs e eH w er as o. co m Organism Sexual Reproduction Baker's yeast is a tiny, single-celled fungus that makes bread dough rise and converts sugars into alcohol. This yeast reproduces by budding. As the small bud grows, it receives a copy of the parent's nucleus. When the bud pinches off, the new cell is smaller than the parent cell but genetically identical Like most bird species, bald eagles mate for life. The female lays one to three eggs per year. Both male and female incubate the eggs, hunt for food, and maintain the nest. Their courtship involves elaborate calls and flight displays, including a tandem free-fall in which partners lock talons and separate just before hitting the ground. The sea horse is unique among fish: it mates for life with the same partner. And it's the dad who gets pregnant! A female deposits her eggs in the male's pouch. The male then carries the eggs for 2-4 This study source was downloaded by 100000813818470 from CourseHero.com 05-10-2021 -05:00 contractions help the male give birth weeksonuntil they08:54:10 hatch.GMT Muscle Seahorse Sexual Reproduction https://www.coursehero.com/file/72808673/Asexual-vs-Sexual-Repro-1docx/ to about a hundred baby seahorses. Monarch butterfly Salmonella Giant amoeba Coast redwood Volvox Sexual Reproduction The Monarch butterfly mates in the spring, just prior to its northward migration. After chasing the female to the ground, the male attaches to her and transfers a capsule filled with sperm and food. She journeys north then lays her eggs on milkweed plants. The leaves nourish her newly hatched larvae. Asexual Reproduction Salmonella is a bacterium that causes food poisoning. In the small intestine, a single Salmonella cell divides in two, rapidly producing many copies of itself. The microscopic bacteria invade our cells, and our immune system responds. We experience fever, nausea, and diarrhea. Asexual Reproduction Single-celled amoebas live in ponds and wet soil. To reproduce, they copy their DNA, then the cell constricts in the middle and pinches apart. The two amoebae are exact copies of each other. When conditions are right, amoebae divide every 48 hours. Both types of reproduction Redwood trees are the tallest and largest trees in the world. Like other conifers, the trees bear male and female cones that rely on the wind for pollination. New trees also sprout from large, shallow roots, generating a circle of trees identical to the parent. Asexual reproduction A volvox is a microscopic green algae that lives in pond water. Thousands of individual cells group together to form a hollow sphere called a colony. The spheres inside the colony are miniature clones of the parent. When they grow large enough, the parent colony falls apart and releases the spheres into the water. Sexual Reproduction Sand scorpions dance together for several hours. When the male finds a good place to deposit a packet of sperm, he puts the female on top of it. When the dance is over, a female will occasionally sting her partner and make him her next meal! sh Th Sand Scorpion Both types of reproduction is ar stu ed d vi y re aC s o ou urc rs e eH w er as o. co m Brittle star There are a couple thousand different species of brittle star. At certain times of the year, male and female stars release sperm and eggs into the ocean. But they can reproduce at other times too. They simply split in half and grow new body parts. This ability to regenerate can also help a brittle star escape a predator. This study source was downloaded by 100000813818470 from CourseHero.com on 05-10-2021 08:54:10 GMT -05:00 https://www.coursehero.com/file/72808673/Asexual-vs-Sexual-Repro-1docx/ Flatback sea turtle Grizzly bear Earthworm Whiptail lizard Garden strawberry Red kangaroo Evidence Sexual Reproduction The flat-back sea turtle lives off the coast of Australia. After mating at sea, the female returns to the same beach where she was born decades earlier. She lays her eggs at night and buries them in the sand, hiding them from predators. Two months later, more than 50 baby sea turtles emerge from the nest and head for the ocean. Sexual reproduction Grizzly bears mate during early summer. The male deposits his sperm inside the female to fertilize her eggs. But the eggs don't develop until the female begins hibernation. The mother will give birth to between one and four cubs. She won't reproduce again until the cubs leave her side about three years later. Sexual reproduction The common earthworm has both male and female reproductive parts. To reproduce, two worms come together to exchange sperm. Each worm deposits its own eggs and the donated sperm into a gooey cocoon that it leaves in the soil. Baby worms emerge a few weeks later. Asexual reproduction This all-female whiptail species is able to reproduce without a male to fertilize her eggs (called parthenogenesis). Females take turns playing male during courtship and mating. After a false mating, the “female” from the mating pair will lay eggs. The daughters are identical to their mom. Both types of reproduction The garden strawberry plant grows modified stems, called runners. Along the runners, tiny new strawberry plants take root. Each new plant is identical to the parent. Insect pollinators also visit strawberry flowers. Pollen from one flower join the eggs of another to form seeds that cover the strawberry fruit. Sexual reproduction Red kangaroos can leap as far as 12 feet in one jump. When it’s mating time, males box each other with their powerful jumping legs. The winning male deposits his sperm in the female, where an egg is fertilized. After only 33 days, the undeveloped young is born. Safely tucked away in the mom’s pouch, it will continue to grow for another seven months. Sexual reproduction The saguaro is a tree-like cactus that grows over 50 feet tall in desert areas of North America. The cactus flowers in the spring and relies mainly on bats for pollination. The flowers produce fleshy fruit filled with thousands of seeds, each one genetically unique. Th Saguaro cactus Asexual or Sexual Reproduction is ar stu ed d vi y re aC s o ou urc rs e eH w er as o. co m Organism sh Circle the organisms that reproduce ASEXUALLY in RED. Circle the organisms that reproduce SEXUALLY in BLUE. 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