Answer: B
Explanation:
The observed differences between the groups most likely resulted from differences in the ability of the seedlings to produce amino acids.
Differences observed in the plant groups would most likely be due to their differing abilities to produce glucose, a monomer that forms cellulose and other sugars vital for plant functions. Other options such as amino acids, cellulose and DNA also play crucial roles in the plant's life processes.
The observed differences between the groups most likely resulted from differences in the ability of the seedlings to produce glucose. Glucose is a monosaccharide, or a simple sugar, that serves as the primary fuel for plants. Glucose monomers form structures like cellulose, which primarily make up a plant's cell wall, providing it with structural support. Glucose is also involved in the formation of other types of sugars such as sucrose and lactose when combined with fructose and galactose, respectively.
However, it's important to note that all the options given - glucose, amino acids, cellulose, and DNA - are monomers or polymers that play vital roles in the life functions of a plant. Amino acids are the building blocks of proteins, cellulose is a structural polysaccharide composed of glucose units, and DNA holds the genetic information of the plant.
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(B) 142.
(C) 141.
(D) 429.
(E) 428.
An mRNA of 429 nucleotides will form a polypeptide chain with 143 amino acids, assuming each codon (set of 3 nucleotides) corresponds to an amino acid and the stop codon is not counted.
For the synthesis of protein in a process known as translation, each triplet set of nucleotides in the mRNA, called a codon, identifies a specific amino acid. Hence, an mRNA of 429 nucleotides would be segmented into a set of 3 to form the different codons for the amino acids. Since 429 divided by 3 is 143, the polypeptide chain resulting from this mRNA would have 143 amino acids.
In this case, the correct answer would be (A) 143. This calculation does not take into account the stop codon that does not correspond to an amino acid, but usually examination questions ignore the effect of the stop codon. To provide the most accurate answer, we would need to know if the mRNA sequence includes the stop codon or not.
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2. Endotherms have higher energetic demands compared to ectotherms.
3. Endotherms spend more energy on internal temperature regulation compared to ectotherms.
4. Endothermy is more common among animal phyla than ectothermy.
5. At the cellular level, endotherms cells always produce more ATP and more heat.
Answer:
3. Endotherms spend more energy on internal temperature regulation compared to ectotherms.
Explanation:
Ectotherms, are considered as cold-blooded animals (reptiles and amphibians), and are organisms that don't have the ability to generate enough heat to keep themselves warm. Endotherms, in contrast, do possess the ability to generate their own body heat.
Endotherms also called warm blooded animals (mammals) have the ability to regulate their body temperature by themselves. If the endotherms are in a cold place their body increases the metabolism and generates more heat. This will compensate for the cold outside.
Answer:
if the image has no nucleus shown then it's a prokaryotic cell.....
Answer:
A Ruler scale
Explanation:
Graduation refers to the tool that measures the length of any particular object. It contains a mark that points to the exact value on a visible scale. These are the linear scales frequently used and they are both straight as well as curved. The units are usually in inches, millimeters, and centimeters.
The ruler scale is often used to measure the length of an earthworm because it gives the most accurate measurement.