What conclusion about flowers is supported by the evidence in the cladogram? *5 points
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Flowers evolved more recently than seeds and vascular tissue.
Most plants alive today produce flowers.
Flowers are a trait of living plant species, but not extinct species.
Flowers evolved from cone-bearing plants.
Answers
Answer:
My answer:
Explanation:
the below conclusion about flowers is supported by the evidence in the cladogram:
Flowers evolved more recently than seeds and vascular tissue
Related Questions
This example of sedimentary rock is formed when rock fragments, minerals, and the remains of plants and animals are deposited as sediments and are thenA) chemically weathered by water. B) compacted and cemented together. C) recrystalized under the weight of the layers. D) melted due to increased temperature and pressure.
As a result of glycolysis, there is a net gain of how many ATPs?
How do plant cells that do not have chlorophyll get food?
What does it mean that a human being is a bio-psycho-social being?
A. The avian influenza strain could be transmitted easily from human to human.
B. An epidemic would likely ensue due to the lack of immunity to the new avian influenza strain.
C. The avian influenza strain could be transmitted directly from birds to humans.
D. The avian influenza strain would only infect the lower respiratory tract of humans.
Hint: Alpha-2,6 sialic acid is expressed throughout the human respiratory tract.
Answers
Answer:
Of the mentioned statements, the incorrect one is option D.
Explanation:
The normal H5N1 strain or the bird flu virus when get attached with the alpha 2,3-sialic acid results in the infection of the lower respiratory tract in humans. The condition occurs very rarely. In comparison, the H1N1 or the human influenza strain gets attached with alpha-2,6 sialic acids and easily results in the infection of the upper and lower respiratory tract.
However, if the mutation takes place in the H5N1 strain, it can bind with the alpha-2,6 sialic acid and can result in the overall infection of the human respiratory tract. Now due to the occurrence of mutations in the H5N1 strain, bird flu can get transmit easily from birds to humans and from one human to another human. Also due to lack of immunity because of the emergence of new strain, the condition can become lethal as, like normal flu, the mutated strain can also result in the infection of the entire respiratory tract.
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Answer:
The answer is C. The GPS makes a task easier
Answer:
Its C
Explanation:
Answers
Answer:
DNA stores an organism’s genetic code.
Answer:
B
Explanation:
I did the test
that would not be possible without phosphorus.
Answers
Answer:
It would be impossible to store and transfer genetic information
It would be impossible to carry out majority of cellular activities due to lack of usable energy.
Explanation:
Phosphorus, as stated in the question, represents a very low amount in our body system, however, its role in living systems cannot be underestimated. Phosphorus is a vital component of major biomolecules in our system.
- It is the building block of the NUCLEOTIDES that make up nucleic acids. Nucleic acids (DNA and RNA) store genetic information and help transfer it to offsprings. However, without one of the elemental components (phosphorus) that make up its structure, it will not be produced. Hence, the storage and transfer of genetic information will be impossible.
- Phosphorus also makes up the structure of the ADENOSINE TRIPHOSPHATE (ATP) molecule. ATP provides the cell with all the energy used in carrying out cellular functions. However, the absence of phosphorus needed for the synthesis of ATP, ATP will not be produced and ultimately no energy.
Final answer:
Phosphorus is necessary for DNA, RNA, ATP, phospholipids, enzyme activation, energy metabolism, and pH balance in cells.
Explanation:
Phosphorus is an essential element in the human body and plays a crucial role in various cellular functions. One of the primary functions of phosphorus is its role in the structure and function of DNA, RNA, and ATP (adenosine triphosphate), which are all fundamental to cellular processes. Phosphorus is also involved in the formation of phospholipids, which are the main components of cell membranes.
Furthermore, phosphorus is important for the activation of enzymes, regulation of cellular energy metabolism, and maintaining pH balance within cells. The (ATP) molecule's structure is made up of phosphorus as well. All of the energy required for the cell to perform its cellular processes is provided by ATP. However, because phosphorus is required for the synthesis of ATP, ATP cannot be created, which results in the absence of energy.
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Answers
Answer:
24 % Thymine (T)
Explanation:
Chargaff's rules indicate that in double-stranded DNA, the proportion of Adenine (A) is equal to the proportion of Thymine (T), while the proportion of Guanine (A) is equal to the proportion of Cytosine (C). Since double-stranded DNA has 24% A, it means there will be 24% T.
Moreover, in this case, the A + T content in the double-stranded DNA is 24 + 24 = 48%, while the G + C content is 48 - 100 = 52%, i.e. G = 26% and C = 26% (26 + 26 = 52).
Final answer:
In DNA, the amount of adenine is always equal to the amount of thymine due to the base pairing rules or Chargaff's rules. Therefore, if a DNA helix has 24% adenine, there would be 24% thymine as well.
Explanation:
In DNA, the amount of adenine (A) is always equal to the amount of thymine (T) due to the base pairing rules, a principle proposed by scientists James Watson and Francis Crick. This principle, often referred to as Chargaff's rules, states that DNA from any cell of all organisms should have a 1:1 ratio of pyrimidine and purine bases. Therefore, if a DNA helix has 24% adenine, there would be 24% thymine present as well.
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Plantae
Archaea
Protista
Answers
hope that helped :))
Final answer:
Some prokaryotes originally classified under Bacteria are now classified as Archaea due their distinct molecular composition and structure. They are not classified as Fungi, Plantae, or Protista because these groups fall under the Eukarya domain whose organisms have a nucleus.
Explanation:
Some prokaryotes that were once classified in the domain Bacteria are now classified as Archaea. Both Bacteria and Archaea are prokaryotes, meaning they are unicellular organisms that lack distinct nuclei. However, Bacteria and Archaea are distinct from each other in terms of molecular composition and structure, leading to the separate classification of Archaea. They are not classified as Fungi, Plantae, or Protista as these groups are part of the Eukarya domain, which consists of eukaryotic organisms (organisms with cells containing a nucleus).
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