This green pigment absorbs light energy needed for photosynthesis to occur. C Pickling: creates a pH at which most bacterial enzymes cannot function. They cannot photosynthesize in places that have an abundance of oxygen, so they are typically found in either stagnant water or hot sulfuric springs. Photosynthetic algae are vital to the global such as carbon and oxygen. A nucleariids B choanoflagellates C zygomycetes D algae E diplomonads A nucleariids Which feature seen in chytrids supports the hypothesis that they diverged earliest in fungal evolution? Bath organs in circulatory sinuses Mollusca mantle: surrounds visceral mass. The thermoacidophile, Sulfolobus acidocaldarius, lacks peptidoglycan, but still possesses a cell wall.
Unlike some other nitrogen-fixing bacteria, which associate with the roots of plants, Azotobacter species are free-living. Peristaltic locomotion in oligochaeta has long and circular muscles. It adheres to the intestinal lining using a feature that also protects it from bacteriophages and dehydration. What kind of a fungus is this? E There would be little change in Earth's ecosystems. Blastula - hollow ball of cells 4.
E There would be no more pathogens on Earth. Plants and the Cycle of Nutrients Plants play an important role in the , specifically carbon and oxygen. Purple non-sulfur bacteria do not release sulfur because instead of using hydrogen sulfide as its reducing agent, they use hydrogen. Gastrulataion forms the blastopore 5. What is likely to be true of this species? Instead, the Indian pipe takes nutrients from a fungus. Answer: E If true, which of the following is the best evidence that the cyanelles are providing nutrition in other words, calories to the surrounding cercozoan? These include actinomycetes, some of which are free-living species that help decompose the organic matter in soil. A Crossing over during prophase I introduces some genetic variation.
E They possess typical prokaryotic flagella. If archaeans are more closely related to eukaryotes than to bacteria, then which of the following is a reasonable prediction? These are Netrium desmid, an order of unicellular green algae that grow in long, filamentous colonies. Megafauna doesnt survive, little creatures survive better. Due to their appearance, these bacteria are sometimes called blue-green algae, although they are not algae at all. C This finding is the strongest evidence yet for the theory of endosymbiosis. Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled.
Like plants, algae contain photosynthetic organelles called chloroplasts. Which of these methods should be least effective at inhibiting bacterial growth? E Eukaryotes did not evolve from prokaryotes. Organs anchored in place with more complex and bigger organs. Reproduction and digestion inside insect host. C The genomes of archaeans are unique, containing no genes that originated within bacteria.
D Archaean ribosomes should be larger than typical prokaryotic ribosomes. C unable to fix nitrogen. Because of this, which of the following is correct? Carbon dioxide is converted to carbohydrates in a process known as carbon fixation or the Calvin cycle. Consequently, assuming that nothing is done to counter the reduction of intestinal bacteria, a hospital patient who is receiving broad-spectrum antibiotics is most likely to become deficient in certain vitamins and nutrients genetic variation in bacterial populations cannot result from? As such, bacteria with bacteriochlorophyll tend to be found in deep aquatic zones where shorter wavelengths of light are able to penetrate. Mott cuticle non cellular outer layer that is secreted by extracellular matrix. A Refrigeration: slows bacterial metabolism and growth. Regarding prokaryotic genetics, which statement is correct? Cyanobacteria perform photosynthesis using water as an electron donor in a similar manner to plants.
Phylum Annelida, Class Oligochaeta: earthworms. Under the conditions of this experiment, what should be true of E. A meiosis in basidia B coenocytic hyphae C sexual life cycle E symbioses with algae D absorption of nutrients The hydrolytic digestion of which of the following should produce monomers that are aminated i. Inorganic compounds carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water. Given their large size, what should be true of the xenomas? In 2009, which of the following did scientists discover was possible on early Earth? End of digestive tract, helps secrete waste. B If the cyanelle is less fit without the host cercozoan than with it. What is likely to be true of this species? A insect exoskeleton B plant cell walls C fungal cell walls D all correct E Two are correct.
Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. It could inhabit alkaline hot springs. They use organic molecules as both the energy source and the carbon source. The cells also produce proteins that stick the cells to the substrate and to one another. Compared with the septate species, the coenocytic species should have less chitin. Responses may be used once, more than once, or not at all. D Canning in heavy sugar syrup: creates osmotic conditions that remove water from most bacterial cells.
Some bacteria obtain energy from light phototrophs , whereas other bacteria obtain energy from chemicals chemotrophs. A by wind-blown spores B by flagella C by cilia D by pseudopods E by hyphae B by flagella Which of the following are protists, the organisms thought to share the closest ancestor with the chytrids? A Some have cell walls only for support. C Bacteriophage numbers would dramatically increase. Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces? A animals B vascular plants C mosses D brown algae E slime molds A Animals the adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to D an extensive surface area well suited for invasive growth and absoptive nutrition Which describes Fungi correctly? A have haploid nuclei B represent the dispersal stage C are produced by meiosis D upon germination, will subsequently undergo S phase and mitosis C are produced by meiosis Plasmogamy can directly result in which of the following? A conidia and basidiocarps B sporangia and hyphae C soredia and gills D haustoria and arbuscules E zoospores and mycelia D haustoria and arbuscules You are given an organism to identify. Answer: A The genome of modern chloroplasts is roughly 50% the size of the genome of the cyanobacterium from which it is thought to have been derived.