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Rasek [7]
2 years ago
12

A dichotomous key can be used to identify an unknown organism. What is the most likely common name of the fish in the picture?:

Biology
1 answer:
harkovskaia [24]2 years ago
7 0

Answer:

glass eye snapper

Explanation:

hope this helps :)

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Jordan is working with a 50% stock concentration of Windex. She decides to add 500 µL of bacteria to a tube containing 1 mL of n
Lady bird [3.3K]

33% is the unknown concentration of the tube.

Explanation:

Concentration of stock of windex = 50%

concentration of bacteria = 500 microliter

nutrient broth = 1000 micro litre +500 microlitre of windex

concentration of bacteria is the volume of bacteria present in nutrient broth culture.

total volume in the tube is 1000

50% is the concentration of tube of bacteria and broth before adding windex.

After adding windex of 50 % concentration and the volume is 500 microliter which is only 250 microliter of windex rest is water.

33% is the concentration of the tube, which means it has 33% of bacteria in 1500 ml of solution.

4 0
3 years ago
What is the polymer of nucleic acid?
pshichka [43]

Answer:

Nucleic acids are polymers of individual nucleotide monomers. Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base.

8 0
3 years ago
Read 2 more answers
What are the factors that contributed to the success of pteridophyte as land plant
Anna35 [415]

Two factors contributed to the success of the pteridophytes: the extreme miniaturization of the gametophytic generation and an important development of the sporophytic generation (development of the tree forms).

Pteridophytes are a group of plants that peaked in the Carboniferous (-300 million years). It is the first great terrestrial plant civilization. These plants would have appeared in the Devonian -400 million years ago, perhaps from certain primitive terrestrial plants which, unlike bryophytes, would have favored the diploid generation on the haploid generation.

Particularly well adapted to terrestrial life, they have created, thanks to the development of tree forms, immense forests whose fossilization is at the origin of coal deposits.

Pteridophytes are at the origin of an evolutionary lineage based on the extreme miniaturization of gametophytic generation and an important development of sporophytic generation, leading to all tracheophytes including current flowering plants. Pteridophytes are well adapted to terrestrial life, however fertilization still requires the presence of water since male gametes are swimmers.

8 0
3 years ago
Determine the type of air mass that typically plays a role in the weather in your area. Describe the
OleMash [197]

Answer:

There are four categories for air masses: arctic, tropical, polar and equatorial. Arctic air masses form in the Arctic region and are very cold.

4 0
3 years ago
Think about the crimes described in the video and about how crimes are investigated now. If the crimes happened today, how would
natulia [17]

Answer:

Think about the crimes described in the video and about how crimes are investigated now. If the crimes happened today, the investigation will be based on fingerprint with evidence sample. Earlier also they used samples and scents to detect the crime.

Explanation:

If the crimes happened today suspects would be fingerprinted and would heck the crime scene for evidence such as blood, hair any type of DNA . Back then there wasn't a way of testing DNA and evidence they just investigated friends , family members and lovers . Back then they used blood hounds to sniff out scents of people who were suspects. Back then they also assaulted suspects until they would confess what they had seen or known .

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3 years ago
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