BIOLOGY HIGH SCHOOL

Which is a journal in which scientists publish original, scholarly research?Popular Science

Science

Scientific American

Natural History

Answers

Answer 1
Answer: The answer is Science. Science is one of the most respected scholary journals where scientists can publish their work after they have written up a manuscript. However, publishing in Science is not easy. Once the authors of a certain proposed paper write it and send it to the editors, the paper itself undergoes a process called double blind peer-review, where their paper is being fact-checked and otherwise scrutinized by multiple researchers of their field in order to maintain a very high quality level of the papers that are being published in Science. 

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What three systems supply most of the world's food?

Answers

Answer:

Croplands, range lands, pastures

Explanation:
Croplands,rangelands, pastures

The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant hunting:

Answers

The statement is - True.

The Tasmanian tiger went extinct because of the extensive hunting by the new settlers. People were killing the Tasmanian tiger because they thought that it is the animal responsible for the killing of the livestock, but at the end it turned out that they made a huge mistake and that actually the feral dogs and the dingo were the ones responsible for that. The last Tasmanian tiger was a female and died in captivity under very bad conditions.

Even though people use the term Tasmanian tiger (because of the stripes) and Tasmanian wolf (because of the dog-like face), it is an animal that is not related with neither the cats nor the dogs, but instead it is a marsupial, the biggest marsupial carnivore in the recent history, and its real name is Thylacine.

Answer:

Extinct species, endangered species, endangered species, threatened species, extinct species

Explanation:

Determine whether the following species are extinct, endangered, or threatened.

The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant hunting:  Extinct Species

The Amur leopard is now gone from most of its original habitat due to human activity. Only twenty to thirty Amur leopards remain in the wild:  Endangered Species

Western Lowland gorilla populations have dropped sixty percent in the past twenty-five years due to poaching, habitat loss, and, mainly, disease. Their numbers are expected to keep dropping, and the species could soon disappear:  Endangered Species

The Eastern gemfish population has declined due to commercial fishing. New protection efforts seem to be helping the population slowly recover: Threatened Species  

The golden toad was forced from its breeding sites when erratic weather caused pools to dry up. No frogs have been found in over two decades: Extinct Species

These are all the answers for E2020!

What three components make up nucleotide?

Answers

The three components make up nucleotide are nitrogenousbase, sugar, phosphate group.

Nitrogenous Base: A nucleotide'sidentity is determined by the nitrogenous base, which is a crucial component. Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four different nitrogenous bases that can be found in DNA.

A nucleotide contains a five-carbon sugar molecule as its sugar. The sugar is referred to as deoxyribose in DNA and ribose in RNA. The sugar molecule joins the nitrogenous base to the phosphate group and gives the nucleotide structural stability.

PhosphateGroup: The phosphate group is a nucleotide's third constituent. It is made up of four oxygen atoms joined by a phosphorus atom.

Thus, these are the three components make up nucleotide.

For more details regarding nucleotide, visit:

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Like DNA, RNA polymers are make up of chains of nucleotides *. These nucleotides have three parts: 1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.
i hope this helps if it does can i get brainliest answer

Which of these animal groups was NOT present by the end of the Cambrian? bryozoans arthropods chordates mollusks

Answers

Only phylum bryozoans were not present during Cambrian period. It is an extensive fossil that did not appear in Cambrian nor pre-cambrian rocks. Bryozoans are found in the early Ordovician period. It could have probably existed during the Cambrian period but were soft-bodied or not preserved.

Number the events from earliest (1) to most recent (6) to outline the development of the cell theory.Anton van Leeuwenhoek observed small organisms he called "animalcules."


Robert Hooke was the first to use the word "cell."


Matthias Schleiden theorized that plants are made of cells.


Theodor Schwann theorized that animals are made of cells.


Hans and Zacharias Janssen created the first microscope.


Rudolf Virchow theorized that cells come from other pre-existing cells.

Answers

Answer:

The chronological order of events ealiest to most recent (1-6) are given below:

Explanation:

1. Hans and Zacharias Janssen created the first microscope in the year 1590.

2. Robert Hooke was the first to use the word "cell." In the year 1665

3. Anton van Leeuwenhoek observed small organisms he called "animalcules." In the year 1674  

4. Matthias Schleiden theorized that plants are made of cells in the year 1838

5. Theodor Schwann theorized that animals are made of cells in the year 1839

6. Rudolf Virchow theorized that cells come from other pre-existing cells in the year 1855

Answer:

The chronological order of events ealiest to most recent (1-6) are given below:

Explanation:

1. Hans and Zacharias Janssen created the first microscope in the year 1590.

2. Robert Hooke was the first to use the word "cell." In the year 1665

3. Anton van Leeuwenhoek observed small organisms he called "animalcules." In the year 1674  

4. Matthias Schleiden theorized that plants are made of cells in the year 1838

5. Theodor Schwann theorized that animals are made of cells in the year 1839

6. Rudolf Virchow theorized that cells come from other pre-existing cells in the year 1855

What is combustion and how does it affect the carbon cycle

Answers

Combustion is the burning of fossil fuels such as coal, natural gas, oil, etc. It affects the carbon cycle because it adds much more carbon to the air. That then causes phenomenon's like global warming. Therefore, it is bad for our environment and ozone layer.
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