Which of these does NOT match the nitrogenous base to the nucleobase?

A. Monosaccharides

B. Disaccharides

C. Pentasaccharides

D. Polysaccharides

There are four major types of carbohydrates: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides (mono- means one) are made up of one sugar molecule, while disaccharides (di- means two) are made up of two sugar molecules. Oligosaccharides (oligo- means few) are usually less than a dozen sugar molecules, while polysaccharides (poly-means many) are usually more than a dozen sugar molecules.

Pentasaccharides are not a type of carbohydrate.

A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.

B. The independent variable is the amount of water, and the dependent variable is the temperature at which the water boils.

C. The independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt.

D. The Independent variable is the amount of salt, and the dependent variable is the amount of water.

In a scientific experiment, the dependent variable is the condition that is being tested and measured. The independent variable is the condition that is being changed or controlled. In this example, the amount of salt is varied, and the boiling point of water is measured. Therefore, the independent variable is the amount of salt, and the dependent variable is the temperature at which the water bolls.

A. Phenotype

B. Species

C. Phylum

D. Genotype

Phenotype is the physical presentation of an organism's genes. In other words, the phenotype is the physical characteristics of the organism. Phenotype is often contrasted with genotype, the genetic makeup of an organism. The genotype of the organism is not visible in its presentation, although some of the characteristics encoded in the genes have to do with physical presentation. A phylum is a group of classes that are closely related. A species is a group of like organisms that are capable of breeding together and producing similar offspring.

A. Cell body

B. Axon

C. Neuron

D. Myelin

Axons carry action potential in the direction of synapses. Axons are the long, fiber-like structures that carry information from neurons. Electrical impulses travel along the body of the axons, some of which are up to a foot long.

A neuron is a type of cell that is responsible for sending information throughout the body. There are several types of neurons, including muscle neurons, which respond to instructions for movement; sensory neurons, which transmit information about the external world; and interneurons, which relay messages between neurons. Myelin is a fat that coats the nerves and ensures the accurate transmission of information in the nervous system.

A. Cellulose

B. Hemoglobin

C. Estrogen

D. ATP

Cellulose is a complex carbohydrate that composes the better part of the cell wall.

Hemoglobin is a protein and is found in red blood cells. Adenosine triphosphate (ATP) is a compound used by living organisms to store and use energy. Estrogen is a steroid hormone that stimulates the development of female sex characteristics.

A. One

B. Two

C. Four

D. Eight

There are four different nucleotides in DNA. Nucleotides are monomers of nucleic acids, composed of five- carbon sugars, a phosphate group, and a nitrogenous base. Nucleotides make up both DNA and RNA. They are essential for the recording of an organism's genetic information, which guides the actions of the various cells of the body.

A. Hair

B. Nails

C. Skin

D. Iris

While melanin can be found in nails, it is not produced there. Melanin is the pigment that provides color to skin, hair, and eyes. Although the specific coloring of one's skin, hair, and eyes are genetically determined. environmental factors such as sun exposure can increase melanin production in the skin to help protect it from damage.

A. Breakage

B. Deletion

C. Insertion

D. Inversion

An inversion mutation is represented in the sequence 1 5 4 3 2 6. An inversion error is a type of mutation where an entire sequence of DNA is reversed. In this case, 2 3 4 5 has been reversed to 5 4 3 2.

Breakage, choice A, in a gene can mess up its function entirely or lead to a translocation of genetic information. Choice B, deletion, is when a section of DNA is omitted or lost.

Choice C, Insertion, is when an extra base pair is added to a DNA sequence. Deletions and insertions can lead to a frameshift effect where entire sequences are thrown off because one nucleotide is wrong.

This could result in coding for the wrong amino acid and non-functioning proteins.

A. Negative feedback

B. Positive feedback

C. Stress response

D. Parasympathetic regulation

Maintaining homeostasis means that conditions are kept stable and relatively constant. Negative feedback is a mechanism used to reverse or minimize changes in a system. In this example, negative feedback is used to keep the body's glucose and insulin levels stable. Positive feedback (B) is a mechanism that Increases changes in a system. A stress response (C) describes the body's reaction to threats or pressures. Parasympathetic regulation (D) refers to activities of the nervous system, including slowing the heart rate and boosting Intestinal activity.

A. Vaporizing, then melting

B. Melting, then freezing

C. Vaporizing, then freezing

D. Melting, then vaporizing

A solid turns into a liquid by melting, and a liquid turns into gas by vaporization.