Answer:
The correct answer will be virus.
Explanation:
The virus is the infectious agents which cannot replicate themselves. these viruses contain a protein capsid surrounding the genetic material.
The genetic material in the virus could be DNA or RNA but do not have both as single-stranded or double-stranded forms.
A virus with RNA are common in nature and an only a limited amount of RNA or DNA can fit a capsid and the capsid along with genetic material is known as the nucleocapsid.
Since the specimens show RNA but not DNA it is a virus-like Ebola, polio, measles, therefore, the specimen is virus and is the correct answer.
Answer:
Janet is watching an RNA virus.
Explanation:
Viruses are microorganisms classified according to their DNA or RNA nucleic acids. They are formed by a protein capsule, the capsids and, inside this, there is only DNA or RNA. Accordingly, we can say that Janet is observing an RNA virus under the microscope.
Some viruses are called enveloped because they have the capsid formed by a lipid membrane resulting from the invaded cell plasma membrane. The capsule is also responsible for the specificity of the virus to adhere to certain cells, this is only possible because they have membrane proteins (receptors) that can fit into their proteins.
Which one of the following components makes up the largest portion of plasma?
a. Proteins
b. Wastes
c. Salt
d. Water
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Based on "Climate Change: An Overview,” what are the effects of global climate change? Check all that apply.
increasing temperatures in the Arctic
more-frequent forest fires
extinction of different plant species
extensive deforestation
increasing use of fossil fuels
rising sea levels
Final answer:
The effects of global climate change include increasing temperatures in the Arctic, more-frequent forest fires, extinction of different plant species, and rising sea levels.
Explanation:
The effects of global climate change include:
Increasing temperatures in the Arctic: Global warming is causing the Arctic to warm at a faster rate than the rest of the world, leading to the melting of ice and loss of habitat for polar bears and other cold-adapted species.
More-frequent forest fires: Rising temperatures and drier conditions increase the likelihood of forest fires, which can have devastating impacts on ecosystems and human communities.
Extinction of different plant species: Climate change can disrupt ecosystems and lead to the extinction of plant species that cannot adapt to the changing conditions.
Rising sea levels: Melting glaciers and ice sheets contribute to rising sea levels, which can result in coastal flooding and erosion, threatening coastal communities and ecosystems.
Final answer:
The effects of global climate change include increasing Arctic temperatures, more frequent forest fires, species extinction, and rising sea levels. These changes result from human activities like burning fossil fuels and contribute to the worsening of climatic conditions.
Explanation:
Based on “Climate Change: An Overview,” the effects of global climate change include several critical environmental and societal changes. Here are some of the main effects that apply:
Increasing temperatures in the ArcticMore-frequent forest firesExtinction of different plant and animal speciesRising sea levelsThese effects lead to the retreat of glaciers, the expansion of deserts, shifts in natural habitats towards the poles, a loss of biodiversity, and a variety of human challenges such as health problems and the displacement of populations. Global climate change is not caused by the increasing use of fossil fuels but is certainly exacerbated by it. Extensive deforestation is an example of a human activity that contributes to climate change but it is not a direct result of climate change itself.
1) a) In ONE sentence only, how is telomerase activity different from DNA polymerase activity during DNA elongation? b) In ONE sentence only, how is helicase activity different from telomerase activity.
Which of these organisms is most likely 50 meters in size
A .lizard
B. Tree
C. Ant
D bacteria
Answer:
tree
Explanation:
A baby born from a caesarian section (an operation where the baby is removed surgically from the abdomen instead of a vaginal birth) would result in:
There are two pairs of competing species of ferns. species a and species b have carrying capacities of 10,000 and 6,000, respectively. the competition coefficient of species a on species b is 0.25 and the competition coefficient of species b on species a is 2.5. species c and species d have carrying capacities of 8,000 and 14,000, respectively. the competition coefficient of species c on species d is 0.1 and the competition coefficient of species d on species c is 0.2. based on the lotka-volterra equation, which of these pairs of species can coexist?
The risk of birth complications _____ with in vitro fertilization (ivf).
what do scientists think produces earth's magnetic field?
Although, in general, science has advanced our standard of living tremendously, there is sometimes a "dark side" to science. give an example of the misuse of science and explain how this has had an adverse effect on our lives.
atoms that gain or lose electron make
Answer:
Ions
Explanation:
They have an electric charge from losing/gaining electrons
You are a paleontologist studying how early land vertebrates evolved to live in different habitats. what do you study? mastering biology
What is the best definition of a conclusion?
1. How do different natural phenomena change the surface of the Earth over time?
what would most likely happen to the bear population if the salmon population increased
During rem sleep, specific brainstem neurons show reduced activity. what types of neurotransmitters are released by these neurons?
what does the arrow mean in a food chain?
The study of how hormones function is called
Endocrinology is the study of how hormones function. Hormones are chemical messengers that travel through the bloodstream, influencing various cellular activities by binding to their target cells' receptors. The study of these hormones' production, regulation, and function is the main focus of Endocrinology.
Explanation:The study of how hormones function is called Endocrinology. Hormones are chemical messengers produced by the endocrine system, which travel throughout the body in the bloodstream, and their function is to control or regulate specific physiological processes. They influence a variety of cellular activities such as reproduction, growth and development, metabolism, fluid, and electrolyte balance, among other functions.
These hormones function by binding to receptors on their target cells, triggering a chain of events that leads to the cell's response. Various hormones have different actions; for instance, some hormones can directly enter the cell, interact with DNA and regulate gene transcription, while others bind to the cell surface receptors and trigger a signaling pathway.
The detailed study of how these hormones work, including their production, regulation, and function, is the main focus of Endocrinology. Hence, understanding these hormonal functions can aid in comprehending how the human body's various systems maintain homeostasis and adapt to changes in internal or external environmental conditions.
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The _____ is responsible for most of the eye's ability to focus images.
Final answer:
The lens of the eye is chiefly responsible for its focusing ability. It adjusts its power to focus images on the retina, with the fovea being the point of greatest acuity.
Explanation:
The lens is responsible for most of the eye's ability to focus images. The cornea and lens form a system that acts as a single thin lens, allowing for a real image to be projected onto the light-sensitive retina. The lens has the capability to change its power by adjusting the radius of curvature, enabling the eye to focus on objects at various distances. This power adjustment is crucial because the retina is at a fixed distance from the lens.
For the highest sharpness in vision, the center of the image falls on the fovea, an area with the densest concentration of light receptors. The eye's pupil, a variable opening, and its ability to chemically adapt allow it to detect a vast range of light intensities, safeguarding the eye against damage.
name the third trophic level in the food chain.
Fill-in the Blank: Write the word that best completes each statement.
6. All organic compounds contain ___________________.
7. Carbon has _________ valence electrons allowing it to _________________ easily with other molecules.
8. ______________ is the ability of water to bond to itself.
9. ______________ is the ability of water to bond to other molecules.
10. A _________ molecule has a slightly positive side and a slightly negative side.
11. Matter is anything that occupies _____________and has ________________.
Answer:
6. Carbon.
7. Four AND bond.
8. Hydrogen bond.
9. Covalent bond.
10.Induced dipole.
11. Space and Mass
Explanation:
Carbon: is one of the most common elements found in the living organism, carbon is the main element involved in the carbon cycle.Bond: the mutual electrical attraction between electrons of different atoms that bind atoms together.Hydrogen bond: is a chemical bond between an Electro-negative atom and the hydrogen atom.Covalent bond: is a chemical bond that results from the sharing of valence electron.Induced dipole: it is considered as an electrically neutral atom.
How can a chain of amino acids turn into a protein?
Proteins are made from amino acid chains that are linked together by peptide bonds, then folded into specific structures. This process is determined by the genetic code, and even slight changes can significantly affect protein function. Protein synthesis is a quick and efficient process that is fundamental to life.
Explanation:Protein Synthesis from Amino Acids
A chain of amino acids transforms into a protein through a series of biological processes which include the formation of peptide bonds, resulting in polypeptides, and subsequent folding into specific shapes. This process begins when amino acids are joined together through a dehydration reaction that forms a peptide bond between the carboxyl group of one amino acid and the amino group of another, releasing water. Chains with two amino acids are termed dipeptides, with three as tripeptides, and generally, chains with about 50 or more amino acids are known as proteins or polypeptides.
The unique sequence of amino acids in a protein is encoded by genes, with even a minor change potentially leading to significant differences in protein function. Following synthesis, proteins often undergo additional processing, which may include folding and modification, before assuming their final function. The genetic code is a universal system that translates the information in DNA and RNA into the sequence of amino acids in proteins.
The entire protein synthesis is relatively quick, with amino acids being added to the polypeptide chain at a rate of several per second, meaning that small proteins can be assembled in under a minute. Such efficiency is essential for the vast array of proteins required by living organisms to sustain life.
When confronted by a large and potentially dangerous snake, alissa experienced a surge of energy triggered by the release of ________ into her bloodstream. serotonin oxytocin endorphins epinephrine?
An atom of the most common isotope of neutral potassium has a nucleus composed of 19 protons as well as
An atom of the most common isotope of neutral potassium has a nucleus composed of 19 protons as well as 19 electrons and 21 neutrons.
What is the atomic number?An atom's atomic number is determined by the total number of protons it contains. Both the number of neutrons and the number of electrons present inside an atom have no relation to the atomic number.
Because isotopes have the property that they have the same number of protons but varying amounts of neutrons, an atom of neutral potassium's most prevalent isotope has a nucleus made up of 19 protons, 19 electrons, and 21 neutrons.
Thus, The most prevalent isotope of neutral potassium has atoms with nuclei made up of 19 protons, 19 electrons, and 21 neutrons.
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What would happen if another substance competed for the enzyme active site?
Catherine was conducting a simulation for an experiment. She added carbon dioxide to the simulation atmosphere, increasing the rate of IR absorption from terrestrial radiation. What effect is Catherine likely to create in her simulation?
Two males weigh 195 pounds and are 45 years old. one has a body fat percentage of 13% and the other's body fat percentage is 29%. which individual likely burns more calories at rest?
Given that quartz has such an amazing variety of colors, why are they all considered to be the same mineral species?
Question 1 of 10 ________ enhances protein synthesis, decreases glucose use, and promotes the destruction of fats.
How do humans reproduce?\
How many different proteins, each with a unique amino acid sequence, can be constructed with a length of 4 amino acids?