Dopamine and norepinephrine are classified as ____.? ?second messengers ?purines ?proteins ?catecholamines

Insertion sequences (IS elements) are equipped with inverted repeats and a transposase enzyme, both critical for their ability to move within the genome.

All insertion sequences (IS elements) contain two essential features that are essential for their movement: inverted repeats and a transposase enzyme. The inverted repeats are short DNA sequences found at both ends of the IS element that are necessary for the transposase to recognize and cut the DNA for movement. The transposase is an enzyme encoded by the IS element itself that catalyzes the excision and integration of the IS element into a new location within the genome.

Nervous system is the organ system that is mostly responsible for generating behavior in multicellular animals. The nervous system coordinates multicellular animal’s behavior and transmits signals within the body.  Specific excitatory and inhibitory substances are produced by the nerve cells for them to interact with each other and certain chemicals, sound and light is detected by the sense organs such as ear and nose which control the behavior and movement of multi cellular animals in their environment.

It is difficult to grow bordetella pertussis in a laboratory because of its inability to grow on ordinary laboratory media such as nutrient agar or macconkey agar. The organism will only grow on specialized media supplemented with charcoal, blood (20%), potato (starch) in order to absorb toxic substances which can inhibit its growth in the agar.

Answer:

Chromosomal mutation is the change in the structure or number of chromosome.

Explanation:

Chromosomal mutation simply refers to a change in the structure of chromosomes.

The structure of chromosome changes as a result of deletion, duplication, inversion or translocation.

Deletion refers to the loss of certain segments of the chromosome.

Duplication of segments of the chromosome leads to repetition of some genes.

Inversion is the change in the order of genes on a chromosome.

Translocation involves the insertion of chromosomal segments into a non-homologous chromosome.

Chromosome number can change as a result of non-disjunction during meiosis. This may result in aneuploidic or polyploidic chromosomal conditions

Using binomial nomenclature, a red oak tree's scientific name should be written as 'Quercus rubrus.' The genus name is capitalized, and the species name is all in lowercase. Both names are typically italicized.

In biology, when writing scientific names for organisms, the naming follows the binomial nomenclature format. This involves writing the genus name first followed by the species name. The correct written form, therefore, of the scientific name for a red oak tree would be Quercus rubrus. The genus name starts with a capital letter, the species name should be in lowercase and the whole name should be written in italics.

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Answer:

The answer is option B.

Explanation:

Components of human trafficking. With the end goal of misuse, which incorporates abusing the prostitution of others, sexual abuse, constrained work, bondage or comparative practices and the expulsion of organs.The United Nations characterizes human trafficking as the enrollment, transportation, exchange, harboring, or receipt of people by inappropriate means, for example, drive, snatching, extortion, or pressure for an ill-advised reason including constrained work or sexual misuse.

1. Protons and neutrons are present in the nucleus of an atom.

2. Boron has a smaller radius and the protons in carbon exert a greater pull.

The nucleus of an atom contains protons, which have a positive charge, and neutrons, which have no charge. Electrons, which have a negative charge, orbit around the nucleus in electron shells.

Boron is located to the left of carbon in the same row of the periodic table. As you move across a row from left to right, the atomic radius generally decreases. Therefore, boron has a smaller radius than carbon.

The protons in carbon exert a greater pull because the effective nuclear charge is higher due to the increased number of protons.

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The luteal phase is one of the phases of ovarian cycle (follicular phase and ovulation are the other two). It is the final phase of the ovarian cycle and it corresponds to the secretory phase of the uterine cycle. During this phase, the transformation of the dominant follicle into the corpus luteum is stimulated by pituitary hormones FSH and LH. Corpus luteum produces progesterone which makes the endometrium receptive to implantation of the blastocyst.

Answer:

D. multicellular, eukaryotic, photosynthetic

Explanation:

I took the test and got it right

The characteristics that all plants have in common are they are multicellular, eukaryotic, and photosynthetic. Therefore, the correct option is D.

Eukaryotic organisms are the organisms which are multicellular and have a well-defined nucleus and other organelles.

Plants are multicellular organisms and are eukaryotic with well-defined membrane bound organisms. They are photosynthetic in nature, which means that they carry out the process of photosynthesis, which is the conversion of solar light to chemical energy for the production of glucose.

They are present under the kingdom Plantae which have cell wall made up of cellulose. They also have chloroplasts, which are centers of photosynthesis. They have specialized reproductive organs to carry out reproduction. Therefore, the correct option is D.

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Neuron 

Neuron can be defined as excitable cell that usually carries, processes and transmit impulses or electrical signals. Thus, they are known to be basic unit of the nervous system which includes the spinal cord and brain. However, the signals between s neurons occur via certain connections called synapses.

The fundamental excitable cell in the nervous system is the neuron. Neurons transmit electrical signals, called action potentials, to convey information and produce movements in response to stimuli. They are also involved in thought processes within the brain.

The fundamental excitable cell in the nervous system is the neuron. Neurons are responsible for transmitting electrical signals, called action potentials, that convey information and produce movements in response to stimuli. They also play a crucial role in thought processes within the brain.

Neurons, the fundamental units of the nervous system, feature a cell body (soma), dendrites for receiving signals, and an axon for transmitting signals to other neurons or cells. Axon terminals release neurotransmitters, facilitating communication at synapses. Neurons exhibit electrochemical signaling, enabling the transmission of information throughout the nervous system, vital for cognition and behavior.

The answer is: C. The total mass of glucose and oxygen formed from photosynthesis is equal to the total mass of carbon dioxide and water used up during the reaction.

The other options either do not consider the masses of all reactants and products or incorrectly pair the masses of different substances, violating the law of conservation of mass.

There are 30-megawatt hours (MWh) per year of savings the students had identified for computers at the Penn State Mueller Laboratory Building. At Pennsylvania State University, an undergraduate class studied an environmental evaluation in one of their laboratory buildings in biology. They want to answer the question, "How is this building like an ecosystem?" Their evaluation result was a report that contains 52-page noting ways to lessen the Mueller Laboratory Building’s environmental footprint in terms of water, energy communications, maintenance, renovation, and food usage. The students establish techniques to save an almost $45,500 yearly in the energy cost alone for a building with 123 scientists and backing staff.