The correct answer for the question is B; Oxygen is used for respiration and carbon dioxide is a waste product.
Explanation;
Plants and animals use the process of respiration to produce energy which is used to fuel normal activities such as growth and movement. The process uses oxygen to break down nutrients such as carbohydrates, fats and proteins, and release energy needed by the plants and animals; but, also creates water and carbon dioxide as byproducts.
Carbon dioxide is a by product of the process of respiration, a chemical reaction that plants and animals use to produce energy they need to carry out day to day activities.
a constant is something that you keep the same and don’t change or it can be something that doesn’t undergo the factors being investigated
<span>achievement
</span>A test that measures a person's knowledge in a specific subject area is a(n) achievement test.
Answer:
UUU and UUC
Explanation:
Information that encodes certain functional products called PROTEIN are present in the DNA molecule. However, the information needs to be expressed via the processes of transcription and translation. Transcription is the synthesis of a mRNA using a DNA template.
The mRNA then undergoes translation, where it is read in a group of three nucleotides called CODON. Each CODON specifies a particular amino acid. Due to the degenerate nature of the genetic code, more than one codon can specify one amino acid.
Hence, in the case of phenylalanine amino acid, codons UUU and UUC both specify it. This means that whenever UUU and UUC are read during translation, a phenylalanine is added to the peptide chain.
Your skin is fairly acidic, which helps it ward off the advances of harmful bacteria and fungi. The optimal of pH of human skin is 5.5, and you can measure it with a piece of litmus paper. You sweat with the sebum on your skin to form something called an acid mantle, which has a pH of 4 to 5.5.
