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Answer:

Ethical issues that arise from modern biotechnologies include the availability and use of privileged information, potential for ecological harm, access to new drugs and treatments, and the idea of interfering with nature. Applications include agriculture and health care.

Explanation:

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Explanation:

the availability and use of privileged information potential for ecological harm access to new drugs and treatment and the idea of interfering with nature .

The characterization of each biome is as follows:

A biome may be defined as a very large ecosystem that is running in nature in an unmanaged way. In a more simple sense, a biome is characterized as a very large area that is significantly characterized by a particular type of vegetation. Some examples of biomes are tropical rainforests, coral reefs, grasslands, etc.

Temperate deciduous forests have an average rainfall of 75 to 200 cm/year and a temperature of 12 degrees Celcius. Tropical rainforests feel higher rainfall and temperature ranging from 25 to 29 degrees Celcius.

Therefore, the characterization of each rainfall is well described above.

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Answer:

The correct answer is d

Explanation:

Allosteric enzymes have multiple binding sites to different ligands called allosteric sites (different from the active site), these ligands can modify their kinetic properties. They are generally made up of more than one polypeptide chain, and have a quaternary structure, an enzyme with a quaternary structure can bind more than one substrate molecule. An allosteric enzyme is an enzyme whose activity is regulated by an allosteric center, which is a site, other than the active center of the enzyme, to which a regulator (called an allosteric regulator) binds in a reversible and non-covalent manner. The binding of this regulator modifies the three-dimensional structure of the enzyme and affects the configuration of the active site, thus increasing or decreasing its activity, depending on the case. The allosteric sites present in regulatory enzymes is where allosteric effectors or inhibitors are attached, causing a conformational change in the substrate binding site or catalytic site, thus regulating enzyme activity.

Answer:

d. depends on changes in their quaternary structure on binding of substrates or inhibitors

Explanation:

Allosteric enzymes are oligomeric proteins composed of subunits or polypeptidic chains. They have a quaternary structure -many subunits and active sites- and express two states, R and T. Both states establish an equilibrium, with or without a joint ligand.

When the transition from one state to the other occurs, symmetry is conserved, but the affinity of a site to a ligand is altered. When a substrate joins one of the sites, it affects other binding sites.

Allosteric enzymes can change their conformation, exhibiting active and inactive conformations as a result of substrate binding at the activated center and regulatory molecules at other binding sites -allosteric centers-.

Answer:

i.) Watergrass: Luziola Juss.

ii.) Morning grass: Miscanthus Sinensis

iii.) Soft weed: Talinum Triagulare

Answer:

water grass–luziola

morning Grass–miscanthus sinensis

soft weed–chromolaena odorata

Answer:

If a proto-oncogene's gene product is produced in smaller quantities, a cell may become cancerous.

Explanation:

The transformation of a cell to a malign cell occurs by mutations accumulation in some specific genes. These genes are grouped into two groups or families:

Protooncogenes direct the production of proteins of varying locations and functions that play a significant role in cell proliferation and differentiation. The proteins include cyclins, growth factors, receptors, etcetera. These genes are proteins codifiers and influence the cell cycle by favoring proliferation or inhibiting senescence and apoptosis.

Depending on the organism´s development stage, these genes can be physiologically active or reprimed.

Certain structural or functional changes in protooncogenes contribute to turning them into oncogenes. When protooncogenes mutate into oncogenes, they are capable of controlling cell multiplication and massively synthesize uncontrolled division triggers.

Answer:

D

Explanation:

the interneuron is located in the central nervous system between the sensory neuron and the motor neuron, therefore it relays impulses from the sensory neuron to the motor neuron

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Answer:

El  hámster Sirio posee 44 cromosomas (22 pares de cromosomas) en sus células somáticas diploides, mientras que el hámster chino posee 22 cromosomas (11 pares de cromosomas) en sus células somáticas diploides

Explanation:

Un individuo es haploide (n) cuando sólo posee un juego de cromosomas en el núcleo celular, mientras que un individuo es diploide (2n) cuando posee dos juegos de cromosomas. En general, los organismos pluricelulares diploides poseen dos tipos tipos de células: 1-germinales (gametos) haploides y 2-células somáticas diploides. El hámster Sirio posee 22 pares de cromosomas, es decir 44 cromosomas (2n=44) en sus células somáticas diploides y 22 cromosomas en sus células germinales haploides, es decir, en sus óvulos (gametos femeninos) o espermatozoides (gametos masculinos) cuya fusión durante el proceso de fertilización da lugar a un cigoto diploide. Por otra parte, el hámster Chino, el cual se considera un organismo modelo en citogenética, posee 22 cromosomas en sus células diploides (2n=22) y 11 cromosomas (n=11) en sus células haploides.

Answer:

Root pressure is the transverse osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.

Explanation:

Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day.

Answer: Water can hold an unlimited amount of oxygen.

Explanation:

Water cannot hold an unlimited amount of oxygen because it would get to a point where it is saturated as it needs to hold Hydrogen as well. Air on the other hand, has significantly more space for oxygen as it contains only 21% and can keep taking more.

Underwater organisms need oxygen for respiration and a small decrease in the oxygen available in water affects aquatic life because they rely on it to survive.

Answer:

a

Explanation:

Answer:

B) Mutualistic

Explanation:

A mutualistic relationship is one of the symbiotic relationships that involves two organisms whose actions benefit one another. In mutualism both parties interact with one another and gain from one another.

According to this question, a bacteria species live in the intestinal tracts of many types of mammals. The bacteria helps the mammal to completely digest the food while the mammal provides shelter and food for the bacteria. This represents an example of MUTUALISTIC RELATIONSHIP.

A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation.

Chromosomes are normally visible under a light microscope only during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form). Before this happens, each chromosome is duplicated (S phase), and both copies are joined by a centromere, resulting either in an X-shaped structure (pictured above), if the centromere is located equatorially, or a two-arm structure, if the centromere is located distally. The joined copies are now called sister chromatids. During metaphase, the X-shaped structure is called a metaphase chromosome, which is highly condensed and thus easiest to distinguish and study. In animal cells, chromosomes reach their highest compaction level in anaphase during chromosome segregation.

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Life is defined as any system capable of performing functions such as eating, metabolizing, excreting, breathing, moving, growing, reproducing, and responding to external stimuli. Any living thing is life.

Answer:

Life is a characteristic that distinguishes physical entries that have biological processes,such as signaling and self-sustining processes from those that do not, either because such functions have ceased,or because they never had such functions are classified as in animate.

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Laying the groundwork for the 'germ theory of disease, Louis Pasteur discovered that organisms cannot spontaneously arise, but must be introduced into an environment.

Louis Pasteur was a chemist and microbiologist. He is known for the discovery of vaccines, fermentation, and pasteurization.

The germ theory is given by Pasteur. He first of all states that process fermentation is done by living organisms, bacteria, and yeast.

Thus, option B. Louis Pasteur is correct.

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Answer:

The ocean currents carry cold water from the polar regions to equatorial regions

The wind blowing over warm currents are moisture laden and thus cause rainfall in the coastal areas.

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Answer:

Option A. Air pollution can cause water pollution.

Explanation:

Substances can permeate into the water from the air.

Water gets polluted by many causes, but a major cause is the air, and chemicals introduced can cause water pollution, hence option a and c is correct.

Water pollution is described as the contamination of water sources by chemicals that render the water unsafe for drinking, cooking, cleaning, swimming, and other uses.

Chemicals, garbage, germs, and parasites all are types of pollutants. All types of pollutants eventually end up in the water. It has the possibility of contaminating drinking water, contributing to waterborne diseases.

Water pollution has an impact on the ecosystem as well because it could induce eutrophication. This can harm fish and other aquatic organisms.

Therefore chemicals and air both pollute the water, then through into the water bodies, hence a and c is the correct option.

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Answer:

gac uau

Explanation:

Answer:

compound light microscope

Explanation:

:)

The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.

Thus, The microscope revolutionized the field of biology by enabling researchers to observe and study tiny structures, cells, and microorganisms that were previously invisible to the eye.

This technological advancement marked a significant milestone in the history of science.

It paved the way for discoveries and insights into the microscopic world of living organisms.

Thus, The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.

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Answer:

The inner wall of the small intestine is covered by numerous folds of mucous membrane called plicae circulares. The surface of these folds contains tiny projections called villi and microvilli, which further increase the total area for absorption.

Answer:

Symbiosis, any of several living arrangements between members of two different species, including mutualism, commensalism, and parasitism. ... Any association between two species populations that live together is symbiotic, whether the species benefit, harm, or have no effect on one another.

Explanation:

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Answer:

Mutualistic, commensalistic, or parasitic symbiosis is any form of an intimate and long-term biological connection between two separate biological species. Each symbiont, or group of organisms, must be of a distinct species.

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Answer:

increase Na+ levels in ECF compared to the original condition.

Explanation:

The increase in ADH secretion increases to regulate sodium balance. The will be increase sodium levels in ECF compared to original conditions. The is no additional water consumption in the reaction and electrolytes will be retained.

Answer:

The gene that causes haemophilia is recessive.

Answer:

It’s recessive. The mother who is a carrier is heterozygous, but she does not have the disease. The only offspring who have the disease are the boys who inherited one mutated gene.

Explanation:

edmentum

Answer:

B. Most scientists agree that global warming is occurring.

Explanation:

There is a large deal of misconception in the public surrounding global warming. Human activity is the primary cause of global warming, and therefore, there are many actions that humans could take to stop global warming.

Answer:

Yeast cells likely do not have receptors that bind to this specific water-soluble mouse hormone

Explanation:

Receptors are molecules capable of binding specific signaling molecules (i.e., ligands). For example, steroid receptors can only bind to specific steroid hormones (e.g. estrogen, progesterone). Plasma membrane receptors are protein receptors that bind to water-soluble ligands. These receptors are embedded in the cell plasma membrane and usually contain several transmembrane domains. Examples of cell membrane receptors include G protein-coupled receptors (GPCRs), enzyme-linked protein receptors and ion channel receptors.

yes it will, it will ruin the food chain