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aleksley [76]
2 years ago
9

You go on a canoe trip to the Boundary Waters Canoe Area (BWCA) in Northern Minnesota. This ecosystem is cold most of the year a

nd receives plenty of rainfall. It has many lakes that are full of walleye pike fish. You know that walleye like to eat minnows. In turn, the minnows feed on scuds (zooplankton) which eat algae (phytoplankton). In this system, the zooplankton are the
Biology
1 answer:
Sunny_sXe [5.5K]2 years ago
8 0

Walleye like to eat minnows. In turn, the minnows feed on scuds (zooplankton) which eat algae (phytoplankton). In this system, the zooplankton are the primary consumer.

Zooplankton is animal plankton that is bigger in size than phytoplankton. The zooplankton is made out of both primary consumers which eat free-drifting algae, and secondary consumers, which feed on other zooplankton. These creatures are consumers since they should eat preformed organic compounds to endure in the ecosystem. Thusly, zooplankton then becomes nourishment for a bigger, secondary consumer like fish. Zooplankton incorporates microscopic and macroscopic life organisms and is of various kinds, and their food sources are vary extensively.

Learn more about zooplankton here,

brainly.com/question/23118581

#SPJ4

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5 0
3 years ago
Design an experiment to answer the question, what is the effect of caffeine on the rate of mitosis in frog eggs? Label: hypothes
s2008m [1.1K]

Answer:

Explanation:

Null Hypothesis: Their will be no effect of the caffeine on the mitosis.

Hypothesis: Caffeine will inhibit the SHSY5Y cell division.

Dependent variable: Various concentration of the caffein compound.

Independent Variable: temperatures of the experimental condition. If their will be any effect of the temperature in mitosis then it will also affect the mitosis of control cells.

Experimental design.

Culture SHSY5Y neuronal cell line in the T-75 culture flask in CO2 incubator at 37 degree celsius. Next day, add cells from T-75 flask in the 24 well plate and allow cells to adhere to the well by incubating plate in CO2 incubator at 37 degree celsius. Add the compound caffeine at different concentration (say 1 microgram, 2 microgram, 3 microgram, 4 microgram) and incubate the plate for 24 hour. Determine the mitotic cells by following assay.

Assay to determine mitotic cell.

The reagent succinimidyl ester of carboxyfluorescein diacetate (CFSE) binds to cytoplasmic proteins. it is fluroscent reagent. And when cell divide due to mitosis, cytoplasm will also divide and hence, the protein which stained with the CFSE reagent will also goes in the daughter cell. Then, the fluorescence of the stained cells can be read on the plate reader.

Prepare the graph of the fluorescence values (Y-axis) verses different concentrations of the caffein (X-axis) and determine the slop of curve to know the rate of mitosis.<u> </u>

<u>Following test and control samples will be used for the assay.</u>

1. SHSY5Y cell line with added caffeine. It is test sample.

2. SHSY5Y cell line added with buffer. This important to know behaviour of cells under experimental conditions.

3. SHSY5Y cell line with solvent used to dissolve compound caffeine. It is important to know the toxicity or any effect of solvent on the mitosis.

5 0
3 years ago
Hypothesize what might happen if the deletion mutation was at the end of the gene rather than towards the beginning
GrogVix [38]

Answer:

Deletion mutation usually takes place due to the errors in the process of DNA replication . DNA polymerase slips off on the template strand due to which that part of the DNA is not coded in the daughter strand.

It can skip from one nucleotide (point mutation) to an entire gene. Point deletion can result in frame-shift mutation if it takes place in the beginning or middle of the gene. However, if it takes place at the end of the gene then it may cause no harm.

For example, let us assume the original sequence of DNA as ATG-AGT-CGT-ATA-TAA. It will result in the formation of methionine, serine, arginine, isoleucine, and STOP codon.

Point deletion at the end of the gene results in ATG-AGC-GTA-TAT-AA sequence. Now it will code for methionine, serine, valine, and tyrosine as AA will not code for anything. Hence, the sequence of the protein remains the same.

Hence, if deletion mutation takes place at the last or stop codon of the gene then it will cause no harm or change in the protein sequence. However, if it takes place before that then it may result in frame-shift mutation and thus a mutated protein.

3 0
3 years ago
The gently sloping area of a continent covered by ocean water is called the -
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B. the continental shelf
3 0
3 years ago
The question is in the pictures:)
grigory [225]
1) A
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3) C
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The answers are already in the picture.

7 0
3 years ago
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