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bezimeni [28]
3 years ago
6

Dr. Bio samples some pond water to observe under the microscope. She finds the specimen above, which seems to have a clear shell

or wall with yellowish pigmentation within. No flagella or cilia are observed. Recognizing that this is clearly a unicellular organism, Dr. Bio's best guess as to its classification is:
Biology
2 answers:
andrey2020 [161]3 years ago
8 0

Answer:diatoms

Explanation:diatoms are aquatic algae which may live in marine and freshwater environment.they are golden brown.they can occurs as floating or dwelling in the bottom of the water body.

Diatoms are unicellular and they posses cell walls composed of pectin and silica deposits.they occur in varying shape.each half of its cell is called a valve and the whole cell is called a frustule.

Diatoms may have one or many chloroplast which contains chlorophyll,carotenoids and xanthophyll.thus makes the organism appear golden or yellow in colour.

They are primary producers and are easily fossilized to form diatomaceous earth.

Tcecarenko [31]3 years ago
3 0

Answer:

His best guess to it's classification is a Diatom

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Answer: All living cells need nitrogen to make nucleic acids, proteins, and other cellular constituents. Plants absorb nitrogen and put them into amino acids and proteins. Other organisms consume the plants. As part of the major nutrients in the diet, amino acids should be particularly taken into account since they not only support the growth and survival of bacteria in the GI tract [27], but also regulate energy and protein homeostasis in organisms [28,29].

Hope this helps... stay safe and have a great weekend!!! plz mark me brainliest if i am right!!!! :D

5 0
3 years ago
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<h2>Proportion of mottled fish </h2>

Explanation:

  • A predator can be defined as an organism that makes the other organisms die to obtain them as food. Prey is the living being which is typically inferior and killed by the predator. Adaptation is a change in the physiology, morphology and genetic makeup of the organism which makes it suitable for survival in an unfavorable environment. Natural selection is the differential survival and reproduction of the organisms which exhibit better traits over the others
  • The population of the mottled fish is likely to increase due to natural selection. As the mottled fish color pattern match with that of the mottled background of the bottom of the lake. This will help the mottled fishes to camouflage the predator wading birds. These mottled fishes will remain undetected from the predator wading birds. The trait of the mottled pattern will be adapted by the light sandy brown fishes and the trait will be passed on the next generation as well. Hence, the proposition of the mottled fish will increase
  • Hence, the right answer is "the proportion of mottled fish will increase over time"

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