Answers
Answer:
Your correct answer is option A. Viruses contain only RNA
Explanation:
Viruses are smaller than any bacteria. In fact, the largest virus is actually way smaller than the smallest bacterium ever. All viruses have a protein coat and a core of genetic material of either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to the cells. In most cases, they definitely reprogram the cells to make new viruses until the cells burst and die. In other cases, they turn normal cells into malignant or cancerous cells. Also unlike bacteria, most of the viruses do indeed cause disease and they are quite specific about the cells they attack.
The correct statement that highlights the difference between viruses and bacteria is "Viruses cannot survive outside a host." The correct option is B.
Viruses are obligate intracellular parasites, meaning they require a host cell to carry out their life cycle.
They do not possess the necessary cellular machinery or metabolic processes to replicate on their own.
Viruses invade host cells and hijack their cellular machinery to reproduce.
When a virus infects a host, it injects its genetic material into the host cell.
The viral genetic material then takes control of the host cell's machinery and directs it to produce new virus particles.
Viruses can have either RNA or DNA as their genetic material, but not both. Viruses have RNA genomes, while others have DNA genomes.Viruses are significantly smaller than bacteria. Viruses are typically composed of a nucleic acid core (either RNA or DNA) surrounded by a protein coat called a capsid. Viruses are not cells and do not have cellular structures. They are considered acellular particles because they lack the essential characteristics of living organisms.Thus, the correct option is B.
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Related Questions
Which of the following actions would help ensure safety in a biology laboratory? keeping personal belongings on top of the lab table trying a piece of equipment until you get it to work discussing the football game while you do the lab being serious and attentive throughout the lab activity
Answers
Answer:
being serious and attentive throughout the lab activity
Explanation:
I don't thinj it needs an explanation. You just have to think logically.
Answer:
D
Explanation:
Which actions could be categorized in the
"aerobic" section of the Venn diagram?
Check all that apply
consists of three stages
yields 36 ATP molecules
does not require oxygen
0 produces lactic acid
O starts process with a glucose molecule
Answers
Answer:
A.
B.
E.
Explanation:
Aerobic respiration will yields 36 ATP molecules and starts with the process of glucose molecules.
What is Aerobic respiration?The respiration in which glucose molecules produces energy in the form of ATP is called aerobic respiration.
The aerobic respiration produces 36 ATP molecules. Fermentation will produce lactic acid. Aerobic respiration consists of three stages such as glycolysis, ETC cycle.
The conversion of fuel, such as fats and sugars, into chemical energy is known as aerobic respiration. Anaerobic respiration, in contrast, doesn't require oxygen.
Therefore, Aerobic respiration will yields 36 ATP molecules and starts with the process of glucose molecules.
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What will likely happen to the body if the joints are stiff, infected or not functioning as expected?
Answers
Answer ...
Explanation:
Basically u will be not able to move .
Which describes oxygen content as Earth evolved over time?
Answers
Answer:
Oxygen levels sharply declined about 400 million years ago. Oxygen levels stay above 15 percent starting 200 million years ago Oxygen levels remain below 5 percent starting 1000 million years ago. Oxygen levels raise significantly between 1000 and 700 million years ago.
Explanation:
Answer: Oxygen levels sharply declined about 400 million years ago
Explanation: corect answer
What's the difference between skin infections and rashes?
Answers
Answer:
rashes is caused by heat while skin infection is caused by bacteria and infection
Answer:
A skin disease might be mellow or genuine. Skin diseases are not quite the same as rashes. A rash is a zone of swollen or disturbed skin
How can analyzing amino acid sequences can help scientists infer patterns of evolution between species?
Answers
The scientific explanation for global warming is very dependent on the _______ atom. a. chlorine b. carbon c. oxygen d. hydrogen Please select the best answer from the choices provided A B C D
Answers
Answer:
B. carbon
Explanation:
edge 2020
The scientific explanation for global warming is very dependent on the carbon atom as the majority of emissions contain compounds of carbon.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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Scale Piots.
A cell phone company collected data about students' texting skills. They collected the texting speed in words per
minute according to time in minutes. Identify the data's independent and dependent variables
The independent variable is
The dependent variable is
Answers
The independent variable is
✔ time .
The dependent variable is
✔ texting speed .
Answer:
D: time
C: texting speed
Explanation:
edg2021
Help please
Luminosity is the amount of energy emitted by a star each second. Stars radiate light over a broad range of frequencies in the electromagnetic spectrum, from the low energy radio waves to high energy gamma rays. The luminosity of a star depends on two factors:
A) age and surface area.
B) surface area and temperature.
C) gravity and distance from Earth.
D) distance from Earth and temperature.
Answers
Answer:
b
Explanation:
Why would you expect equal numbers of guanine and cytosine in a molecule of DNA, but not necessarily in a molecule of RNA?
Answers
Answer:
DNA is double-stranded, so there must be equal numbers of C and G because they pair to each other on the complementary strands.
RNA is only single-stranded, so there can be any number of C and G. They don't pair to each other, because there's only one strand.
Equal numbers of guanine and cytosine would be expected in a molecule of DNA, but not RNA because:
DNA is double stranded with the first strand being a complimentary copy of the other. The two strands are also associated with each other by hydrogen bond.RNA is single strand.In the double strand DNA, Adenine always pair with Thymine while Guanine always pair with Cytosine. Hence the number of Adenine must be equal to that of Thymine while that of Guanine must be equal to Cytosine.
The single strandness of RNA means that it can contain an arbitrary amount of any of the bases without following a particular rule.
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The human skeletal system has many important functions, including movement. As a person ages, movement can become difficult. Ligaments become less elastic and cartilage is damaged. 7. Considering the function of ligaments, explain why less elastic ligaments could cause movement to be difficult. 8. Considering the function of cartilage, explain why damaged cartilage could cause movement to be difficult. 9. Identify two functions of the skeletal system besides movement.
Answers
HELPPP ASAPP!!!! 20 POINTS!!!!
The table below provides the number of chromosomes found in the body cells of various types of organisms.
Diploid Chromosome Number
Fruit Fly
8
Human
46
Goldfish
94
Which of the following is the best explanation for why the chromosome numbers above are all even?
A.) The diploid chromosome number represents two sets of chromosomes, one from each parent, so it is always an even number.
B.) Animal cells always have an even number of chromosomes, and plant cells always have an odd number of chromosomes.
C.) The diploid chromosome number is always even to ensure that equal numbers of chromosomes end up in each daughter cell during meiosis.
D.) The number of chromosomes present in a diploid cell doubles for each generation because there are two parents.
Answers
Answer:
A
Explanation:
I took the exam and got a 100.
Which of the following best explains the modern connection between people and food?
Today most people in developed countries hunt or raise their own food
Today most people in developed countries have a scarcity of food sources
Today most people in developed countries are more trusting of food quality
Today most people in developed countries do not know the origin of their food.
Answers
Answer:
Today most people in developed countries have a scarcity of food sources.
What are the three parts of observation ?
Answers
A nucleotide does not contain
a. a 5-carbon sugar.
b. an amino acid.
c. a nitrogen base.
d. a phosphate group.
Answers
Answer:
b.) an amino acid.
Explanation:
A nucleotide contains three things:
a 5-carbon sugar a nitrogenous basea phosphate groupSince amino acids are not on this list, the correct answer is b.
A nucleotide does not contain a amino acid.
What are nucleotides?Nucleotides are organic molecules consisting of a nucleoside and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid and ribonucleic acid, both of which are essential biomolecules within all life-forms on Earth.
Moreover, a nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).
Therefore, DNA and RNA are polynucleotides, which contain a chain of nucleotides monomers with different nitrogenous bases. Nucleotides are essential for carrying out metabolic and physiological activities.
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Which is a function of cyclins?
Answers
Explanation:
Cyclin is a family of proteins that controls the progression of a cell through the cell cycle by activating cyclin-dependent kinase (CDK) enzymes or group of enzymes required for synthesis of cell cycle.
Which pair of molecules both contain carbon atoms?
Answers
Answer:
A
Explanation:
Analyze whether the tiger is at the same level and whether it obtains the same amount of energy in both the food chains.
Answers
Answer:
No, the tiger is not at the same level in the food chain.
Explanation:
There are two different food chains in this example: 1. Spinach --> goat --> human --> tiger 2. Spinach --> goat --> tiger.
In the first example, tiger is a tertiary consumer because it feed on secondary consumer that is human which feeds on primary consumer, while in the second example, the tiger is secondary consumer because it feeds on primary consumer that is goat which feeds on producer. In the food chain, there are different trophic levels are present such as producer, primary consumer, secondary consumer and tertiary consumer etc. Some animals act as both secondary and tertiary consumer. In these two examples, tiger act as both secondary and tertiary consumer.
Choose which way of evolution caused the FQ antibiotic resistance.
Answers
Answer:
Antibiotic resistance is an act of evolution via natural selection. The antibiotic action is an environmental pressure: those bacteria which have mutation allowing them to survive and re-produce
Explanation:
A variation in the properties of an organism over a period of time is called evolution.
Antibiotic resistance can transpire naturally or due to progression.
This type of endurance occurs so that the bacteria can persist and proliferate in the changed conditions.
Fluoroquinolones (FQ) modify the enzymes like DNA gyrase and topoisomerase IV.
The bacteria in order to survive from this antibiotic adapted mechanism so that the use of antibiotics would not hinder their reproduction mode and hence they will be able to survive.
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What happens in the condensation part of the water cycle?
Answers
Answer:
Condensation is the opposite of evaporation. It is when water molecules in the air, which are in gas form, cool and accumulate into liquid form. In the air, this is the formation of clouds and sometimes you can see condensation on your water bottle in the summer if it has a cold liquid inside. When the hotter water molecules in the air touch the bottle, it is cooled and shifts to its liquid form. When clouds accumulate enough water droplets, they become too heavy to stay in the air and fall to the earth as rain, snow, hail, etc.
Explanation:
Answer:
Condensation is the opposite of evaporation. It is when water molecules in the air, which are in gas form, cool and accumulate into liquid form. In the air, this is the formation of clouds and sometimes you can see condensation on your water bottle in the summer if it has a cold liquid inside. When the hotter water molecules in the air touch the bottle, it is cooled and shifts to its liquid form. When clouds accumulate enough water droplets, they become too heavy to stay in the air and fall to the earth as rain, snow, hail, etc.
How can you make it safer to exercise on a hot day?
A. Do not exercise between 11 a.m. and 5 p.m., the hottest hours of
the day.
B. Wear loose-fitting clothes that allow sweat to evaporate.
C. Drink water before, during, and after a workout. Drink water at
least every 20 minutes while exercising.
D. All of the above.
Answers
Answer:
All of the above
Explanation:
All those reason will keep you safe thats why i chose that answer
Pls mark me as brainliest if this helped!!
Write the definitions of the following terms.
Cell
Tissue
Organ
Organ system
Answers
Answer:
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.
In biology, tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissue
In music, the organ is a keyboard instrument of one or more pipe divisions or other means for producing tones, each played with its own keyboard, played either with the hands on a keyboard or with the feet using pedals
An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body, and is made up of distinct tissues.
Explanation:
i found on the internet:)
What are three types of population distribution and explain each
Answers
What Describes The primary function of the nervous system in keeping the body in homoestasis ?
Answers
Answer:
It processes the environment and sends out signals. It controls movement and provides structure. I hope this helps! :)
Explanation:
What are the main causes of antimicrobial drug resistance?
Answers
Answer:
Anti-infection opposition grows normally in microscopic organisms. Be that as it may, our activities can expand obstruction creating and spreading. This can occur:
at the point when human and creature wellbeing experts over recommend anti-infection agents
at the point when individuals don't accept anti-infection agents as coordinated
because of poor cleanliness and an absence of disease avoidance and control for example not washing hands appropriately
Which of the following structure is a protective features of the Agama lizard
to terrestrial habitat? (A) claw (B) Gular fold (c) scaly skin (D) nuchal crest (R) Tail
Answers
Answer:
tail n scaly skin..
Explanation:
B. VERY SHORT-ANSWER QUESTIONS: Give one-word a
1. What is the study of microorganisms known as?
2. Microbes are disease-causing microorganisms. True or false
3. All fungi are unicellular. True or false?
Answers
Answer:
1. Microbiology
2. True
3. false
1. Microbiology
2.
3. False
EXPLANATION:-
2.Idk the answer bcoz
Disease causing microbes are known as pathogens and not all microbes cause diseases
3. Fungi live as either single-celled organisms or multicellular organisms. Single-celled fungi are referred to as yeasts. The vast majority of fungi are multicellular
Where does the body absorb most nutrients?
Answers
Answer:
CELL
Explanation:
THE CELL
Sketch and label a food-web that includes at least 6 different items. Make
sure to have the arrows show how energy flows from one trophic level to
the next.
Answers
Answer and Explanation:
Example of a food-web:
(1) Algae --> (2) Protozoas --> (3) Krill --> (4) Cephallopods --> (5) Medium sized dolphin --> (6) Large Dolphin
The trophic web is the process of energy transference through a series of organisms, in which every organism feeds on the preceding one and becomes food for the next one.
1) The first link is an autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter. In this example, the autotroph organisms are algae, that make use of sunlight and inorganic matter.
The next links are the consumers:
2) Herbivores are primary consumers and feed on producers. In this example, herbivore organisms are protozoan.
3) Krills are the secondary consumers and feed on protozoans.
4) Some species of cephalopods feed on krill, among other species.
5) Specialized Cetaceans such as the Risso´s dolphin, feed especially on cephalopods, as they lack upper teeth and they only have a few teeth in their jaws.
6) The killer whale is a big sized-dolphin and a very important predator. It feeds on many animals, and one of them is the Risso´s dolphin.
Down Syndrome is caused by trisomy 21.
True or false
Answers
Answer:
I think it's true, I'm not a hundred percent sure tho
