How did the color of the water in Lake Nyos change following the release of the carbon dioxide gas, and what caused this change in color?
Viruses have all of the characteristics of living things EXCEPT
A) Cells
B) Organization
C) Reproduction
D) Response
Viruses are accelular entities and do not possess cellular membranes in their structure. Thus, option A is correct.
What is virus?Virus are considered as a potent pathogenic organism for carrying infection in the body of the host. Viruses have the unique properties which demarks them from living and non-living creatures.
Virus can be considered non-living in the outer environment however they possess the property of life once they enter into the body of the host. Viruses have the ability to multiply in the body of the host by utilizing host DNA and proteins as machinery for replication.
Virus can have RNA or DNA as their genetic material and they can efficiently pass through the bacterial filters because of their small size.
Virus can cause severe infections in man, plants as well as in cattle. Common cold, HIV AIDS, hepatitis are some examples of virus in human.
Thus, virus can be considered as an infectious agents.
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Which of the following is one stage of the cell cycle?
Cellular respiration
Mitosis
Multiplication
Photosynthesis
Answer:
THE ANSWER IS B
Explanation:
What discoveries has space technology helped paleontologists with?
Space technology has helped to determine the Hadrosaurs are the same as T.Rex.
Space technology has helped create accurate maps of the Gobi desert.
Space technology has helped find a new route to travel to the Gobi desert.
Space technology has helped determine that Hadrosaurs are very different from what was thought earlier.
It's number four, i remember it in the lesson. FLVS right?
what is antibody and antigen?
Antigens are molecules proficient in motivating an immune response. Each antigen has different surface features, or epitopes, causing in specific responses. Antibodies (immunoglobins) are Y-shaped proteins produced by B cells of the immune system in reply to contact with antigens.
which are the most common gases emitted by volcanoes
How does an enzyme’s active site relate to its substrate?
The active site of an enzyme is a uniquely shaped region that binds specifically to its substrate, either through a rigid lock-and-key model or a more flexible induced fit model, enabling the enzyme to catalyze a specific reaction.
The active site of an enzyme relates to its substrate through a specific physical and chemical complementarity, which enables the enzyme to catalyze a reaction involving the substrate. Two models explain this relationship: the lock-and-key model and the induced fit model. In the lock-and-key model, the substrate fits into the active site perfectly without any alterations to the enzyme's shape, much like a key fits into a lock. In contrast, the induced fit model allows for some flexibility; the active site undergoes a conformational change to snugly fit the substrate, accommodating a small group of similar substrates, thus facilitating the reaction.
Once the substrate is bound to the active site, the enzyme catalyzes the conversion of the substrate into the product(s) of the reaction. This specific interaction and catalysis are critical for the biological functions that enzymes serve, from digestion to DNA replication.
In which part of the digestive system does a chemical change of the food first occur?
Answer: mouth (A)
Explanation: I just did the test
Answer:
The answer is A
Explanation:
Directions: The answer highlighted is incorrect, highlight the correct answer using a green color. Once you have selected your answer, explain how the first answer is incorrect using complete sentences.
On a recent research trip to the African rain-forest, Donna discovered a new organism that is multi-cellular and contains chlorophyll. Which kingdom does the newly discovered organism most likely belong to?
A) Animals
B) Plants
C) Bacteria
D) Fungi
The incorrect answer is C. Bacteria.
The correct answer is B. Plant
Explian why it can not be C. Bacteria
Please answer. I need to know this, My teacher will check it
Please I NEED the REAL ANSWER FOR THIS ONE
Where do the reactions of the electron transport chain occur?
A. Inside the cell membrane.
B. Within the cell’s cytoplasm.
C. Within the mitochondria’s inner membrane.
D. Within the mitochondria’s matrix.
Make sure your answer is correct! Plz
Within the mitochondrion’s inner membrane
The right answer is C. Within the mitochondria’s inner membrane.
The mitochondrion is limited by two membranes of very different properties:
* the outer membrane contains a transmembrane protein, porin, which allows the passage of ions and water-soluble metabolites of molar mass <10.000 Da.
* The inner membrane is very rich in proteins and almost impermeable to ions and water-soluble metabolites.
The respiratory chain or electron transport chain is located in the inner membrane of mitochondria. Each mitochondrion contains thousands of copies of the electron transport chain.
I need help, need correct answer
Escherichia coli is a prokaryotic bacterium. How will Escherichia coli reproduce?
Answer:
Binary Fission
I hope this helps
The arrow pathway from muscle to gray matter illustrated in Figure 1 below is called a(an) ____.
The answer should be: Knee j*rk reaction! hope this helps(:
Describe an advantage of having cells that can differentiate many times
a single lunar cycle lasts a
1.day
2.week
3.month
4.year
The answer is; 3
A lunar cycle is the phases of the moon as it orbits, once, around the earth (which takes approximately 29.5 days). These phases can be viewed from the earth - new moon to full moon. The light from the sun that hits the moon reflects to the earth. Depending on the position of the moon, in its orbit, and with respect to a person at a particular position of the earth, the moon will be in a particular phase.
Landforms tend to weather and wear down over time. The Grand Tetons are an area of steep, rugged mountains that are thought to be about 9 million years old. What change would an observer most likely see if he could look at the mountains again after another 9 million years?
Answer:
Explanation:
Over time, steep hills are weathered. Weathering and erosion break down and remove rocks and soil such that the mountains tops become more rounded and the rocks and soil deposit on the hillsides, making them less steep.
After another 9 million year of erosion and deposition, an observer could expect the mountains to be less steep and more rounded.
Selective cutting leaves forests that are just like old growth forests.
true
or
false
The statement that selective cutting leaves forests that are just like old-growth forests is false.
When selective cutting is implemented, it involves removing moderate to fully mature trees individually or in small groups. Although this technique is less damaging compared to other harvesting methods such as clear-cutting or strip-cutting, it still alters the forest's structure and can cause considerable ecological impact, especially in tropical forests. Old-growth forests have developed over centuries into complex ecosystems with a high degree of biodiversity and a unique genetic pool, which cannot be replicated simply through selective cutting and replanting.
Old-growth forests are known for their intricate web of life, serving as crucial habitats for many species. Once these ancient trees are cut down, they are lost forever; replanting trees does not restore the original old-growth forest due to the loss of biodiversity and the unique genetic composition that took hundreds of years to establish. Selective cutting, while a more sustainable approach compared to clear-cutting, does not leave forests resembling their original old-growth state.
For this question, look at the hydrologic cycle diagram.
Which number in this diagram represents precipitation?
A) 1
B) 2
C) 3
D) 4
What type of tissue is most likely being viewed under a microscope?
The morphology of cells in tissue viewed under a microscope can indicate whether it is simple or complex tissue. Loose connective tissue is recognized by cells scattered in a transparent background, while vascular tissues are identified by cells such as xylem and phloem. For small surface structures, electron microscopes are best, but light microscopes, commonly used by students, often require staining to view cell components.
Explanation:When viewing a specimen under a microscope to determine the type of tissue it is, several characteristics can be noted. For example, if the morphology of the cells observed is similar and they appear uniform, the tissue is likely simple tissue. In contrast, complex tissue would exhibit a variety of cell types and structures. Specifically, if under the microscope, the tissue specimen shows cells located in spaces scattered in a transparent background, this is indicative of loose connective tissue.
In the context of plant biology, if a student reported vascular tissue while inspecting a cross-section of a plant stem, the presence of cells such as xylem, with thickened cell walls, and phloem would be indicative of this type of tissue. Cork cells, as viewed by Robert Hooke, come from the bark of the cork oak tree, and these cells create a protective and insulating material that is also impermeable to liquids and gases. For viewing very small surface structures of a cell, a scanning electron microscope (SEM) or a transmission electron microscope (TEM) would be most suitable due to their high resolution.
Light microscopes are commonly used by students and are advantageous for viewing living organisms. However, due to cells generally being transparent, details may not be distinguishable without the use of special stains, which unfortunately often result in the death of the cells.
Which pathogen depends on living cells to reproduce
Answer:
The correct answer is viruses.
Explanation:
A virus is the pathogenic non-living organisms which infect the host.
They are considered non-living as they do not have their own replication machinery and so depend on the host for their replication machinery, therefore, they are non-living without host organisms and need a host to survive.
Virus inject their genetic material in the host where it is integrated into the DNA of the host and the segment of the DNA of the virus gets replicated along with the DNA of the host which is then coated with the capsid of the virus,
Thus, the virus is the correct answer.
Do birds exhibit mainly internal development or external development
Nick predicts that wax has a higher melting point than chocolate. How can Nick test his prediction?
Which graph most likely shows an ecosystem that has underwent a primary succession event during the observation period?
Answer:
D
Explanation:
In fruit flies, the traits for a yellow body and white eyes are always inherited together. Which conclusion can be drawn from this phenomenon?
A. The genes for the traits are adjacent in the genome.
B. Both traits are dominant.
C. The species has only one allele for each trait.
D. The traits are controlled by one gene.
Answer: Option C. The species has only one allele for each trait is correct.
Any trait in an organism can be determined by a single gene containing two alleles one from each parent and one allele dominant over the other. A single trait is affected by a single locus. Only one single trait can be expressed by a single gene and a gene can never encode for more than one trait. The traits that are expressed are independent of the locus of the gene or position of the gene. Without knowing the genotype it cannot be predicted that both traits are dominant or not and it may be possible that either of the trait is recessive. Therefore it can be concluded that the species has only one allele for each trait which is expressed.
Which of the following astronomical bodies is the lowest in hierarchy? Galaxy Planet Solar system Star
An astronomical object or the celestial object refers to a naturally taking place physical entity, composition, or association, which prevails in the observable universe. Or it can also be illustrated as the celestial body refers to any natural body external to the atmosphere of the Earth. The examples, are the Sun, Moon, and the planets of the solar system.
In the mentioned objects, the lowest in the hierarchy is the planet, then comes the star, then the solar system, and finally the galaxy.
A gene has the base sequence of CGT AT gave an example of a frame shift mutation on this gene
Which one of the biomes is considered endangered? What does this mean?
Answer: The Atlantic Forest is a biome considered endangered. It means that the biome is at risk of disappearing A biome is a large community of both nature and animals, and endangered means something that has very few left..
What is the literal meaning of the term "Binomial Nomenclature?" Give an example of when it is beneficial to use the scientific name of an organism.
Binomial nomenclature ("two-term naming system"), also called binominal nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, binominal name or a scientific name; more informally it is also called a Latin name.
The literal meaning of the term "Binomial Nomenclature" is the naming system that uses two words to identify a species.
What is the Binomial Nomenclature?Binomial Nomenclature is made up of two words. The first word represents the genus, and the second word represents the specific epithet. For example, Homo sapiens is the scientific name for humans, with "Homo" being the genus and "sapiens" being the specific epithet.
It is beneficial to use the scientific name of an organism when there is a need for precision and clarity in communication. Common names can vary depending on location, language, and culture, which can lead to confusion.
However, scientific names are universally recognized and accepted. Scientists, researchers, and academics use scientific names to avoid ambiguity when discussing a particular species. This allows for easier and more accurate communication of information, particularly in fields such as biology, zoology, and botany.
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Prokaryotic organisms have several characteristics in common with eukaryotic organisms. Which statement best describes one of these shared characteristics? * 1 point All prokaryotes and eukaryotes have locomotive capabilities that help them to avoid danger. All prokaryotes and eukaryotes have the same basic cell structure and organelles. All prokaryotes and eukaryotes have some ability to regulate what enters and leaves their cells. All prokaryotes and eukaryotes have the ability to produce food through photosynthesis.
the specialized cells involved in sexual reproduction are called: zygotes
gametes
buds
chromosomes
The correct answer would be gametes
Answer:
Gametes
Explanation: