Answer:
Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
Many plants have flowers that help them to make seeds in order to reproduce. You can learn ... of flowering plants. One of the major groups of gymnosperm plants is the conifer. ... The hard scales of the cone protect the new seeds as they grow. Seeds ... There are some non-flowering plants that don't produce seeds.
sooo, first one is 3 and the second one is 2
Explanation:
Amino acid sequences can be defined by a percentage of identity. This percentage indicates the number of identical residues between proteins or nucleic acids of a given alignment.
- In this case, 240 aminoacids is the total length of the protein alignment (i.e. the alignment between FP1 and FP2 proteins)
- In consequence, in this case, the percentage of identity is 99.58% because dissimilarity is equal to 1/240= 0.0041667%, thereby percentage of identity is equal to 100 - 0.0041667 = 0.995833%.
- Nucleic acid (either DNA or RNA) sequences and amino acid sequences can be defined by the percentage of identity.
- The percentage of identity can be used to discover proteins or protein regions (i.e., domains, linear motifs, etc) which exhibit homology, i.e., proteins/protein regions that are similar due to a common evolutionary origin.
In conclusion, the percentage of identity is determined by the number of identical nucleotides (DNA and RNA) or amino acid residues (proteins) over the total of nucleotides/amino acids in the local alignment.
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they make oxygen and so we don't die from too much oxygen
Cellular respiration and photosynthesis are functionally interrelated. These metabolic pathways exhibit interchangeable reactants and products.
<h3>Cellular respiration and photosynthesis</h3>
Cellular respiration refers to the metabolic reactions by which aerobic cells produce energy in the form of ATP and carbon dioxide by using the energy of chemical bonds of foods (eg., glucose) and oxygen.
Photosynthesis refers to the metabolic reactions by which plant cells produce simple carbohydrates (glucose), water and oxygen by using carbon dioxide and energy from the sun.
In consequence, oxygen and carbohydrates are the products of photosynthesis, whereas these materials are the reactants of cellular respiration (thereby both pathways are interrelated).
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Answer;
DNA replication is semi-conservative.
The meselson-stahl experiment supported the hypothesis that DNA replication is semi-conservative.
Explanation;
The Meselson-Stahl experiment was an experiment by Meselson and Stahl that proved that the semi-conservative model by Watson and Crick was correct.
DNA replication is semi-conservative in the sense that the new helices formed after replication contain, one new DNA strand and one old strand from the parent DNA molecule.