Answer:
a host is something that hosts a disease
Explanation:
humans are vulnerable, so they can get a disease and spread it.
Answer:
A host in the context of infectious disease refers to an animal or plant that acts as a biological refuge in which another - often parasitic - organism may dwell. The host usually provides shelter or nourishment to the other organism, which may use the host to partially/completely sexually develop.
Explanation:
What feature below is not found in Cnidaria?
A) Stinging Cells
B) Aristotle's lantern
C) Radial Symmetry
D) Two-layerd embryonic tissue.
Answer:
b
Explanation:
All Cnidaria are aquatic, mostly marine, organisms. They all have tentacles with stinging cells called nematocysts that they use to capture food. Cnidarians only have two body layers, the ectoderm and endoderm, separated by a jelly-like layer called the mesoglea.Radially Symmetrical.
The feature that is not found in Cnidarian among the options would be Aristotle's lantern. Thus, B would be the right option.
The cnidarians represent a phylum in the animal kingdom with the following characteristics:
radial symmetry. The body can be divided into 2 halves along several planes.presence of enteron or gastrovascular cavitypresence of 2-layered embryonic tissue. In other words, they are diploblasticexhibitions of 2 body forms - polyp and medusa. Hence, they are said to be polymorphicpoorly developed nervous systemtissue level of body organizationIn other words, there is nothing like Aristotle's lantern as far as the Cnidarians are concerned.
More on Cnidarians can be found here: https://brainly.com/question/3742497
Genetic engineering requires
a.bacteria
b. Fungi
c.plants
d. algae
Answer:
c.plants
Explanation:
can someone help me please it’s ecology
The Endosymbiotic Theory proposes that the organelles distinguishing eukaryote cells evolved through symbiosis of individual single-celled prokaryotes. Refer to the diagram provided. What is the BEST explanation for what is happening in step C?
A) A bacterial cell is engulfing a mitochondria from its environment.
B) A cell engulfs a cyanobacteria cell, without digesting it, allowing it to become an endosymbiont, producing sugars within the cell.
C) A prokaryotic cell engulfs other prokaryotic cells allowing the cell to become more complex, incorporating the new cells' organelles.
D) A cell engulfs an aerobic bacterial cell, without digesting it, allowing it to become an endosymbiont, giving the cell a survival advantage.
Answer: the answer is d
Explanation:
i took that test
According to the Endosymbiotic Theory, the statement that represents the best explanation for what is happening in step C is as follows:
A cell engulfs an aerobic bacterial cell, without digesting it, allowing it to become an endosymbiont, giving the cell a survival advantage.Thus, the correct option for this question is found to be D.
What is Endosymbiotic theory?An Endosymbiotic theory may be characterized as a type of theory that demonstrates the evolution of a eukaryotic cell from a prokaryotic cell through the mechanism of engulfment. It typically observes numerous cell organelles in eukaryotic cells as descendants of endosymbionts.
The theory of endosymbiosis is generally given by Lynn Margulis. This theory was terminated in two steps. One governs the process of evolution of mitochondria while the other represents the origination of chloroplasts.
When anaerobic predator cell engulfs α-proteobacteria and gives rise to mitochondria. When this mitochondrion cell then engulfs cyanobacteria, it eventually leads to the formation of the chloroplast.
Therefore, the correct option for this question is found to be D.
To learn more about Endosymbiosis theory, refer to the link:
https://brainly.com/question/1698852
#SPJ3
People who have 5 fingers on each hand are
Answer:
humans
Explanation:
because I'm smart and I am a human
Which product is the result of light reactions in photosynthesis
A. oxygen
B. glucose
C. carbon dioxide
D. WATER
4. Many fish and aquatic plants can survive a cold winter because the layer of ice that forms at the top of the lake insulates the water below and prevents the lake from freezing solid. What unique property of water contributes to this effect?
This question is incomplete because the options are missing; here is the missing section:
What unique property of water contributes to this effect?
A. Water absorbs heat when it evaporates and forms a gas.
B. Water expands and becomes less dense when it freezes.
C. Water molecules completely separate into ions in solutions.
D. Water forms hydrogen bonds with ions and other polar substances.
The answer to this question is B. Water expands and becomes less dense when it freezes.
Explanation:
Different from other substances, once water decreases its temperature and freezes it becomes less dense. This implies the relationship between mass and volume decreases. This is caused by the expansion of water that increases its volume and causes a lower density. Moreover, due to the low density of ice in comparison to water, the ice floats over water. This leads to an ice layer over lakes, rivers, etc. and water below that allows living organisms to continue living.
What would most likely happen if the global demand for grains and soybeans suddenly decreased?
Answer:
For global feed grains, the news and the fundamentals would increase a little better. Global demand is growing by about 1.5%. The U.S. is the dominant nation in the world in corn production with about 28% of the world’s production and nearly 50% of the global trade. Global ending stocks have been moving lower for the last three years.
Explanation:
What does concentration means when talking about transport?
Most cells can only be seen with:
a telescope
a microscope
the naked eye
a magnifying glass
Answer: a microscope
Explanation:
Most cells can only be seen with the help of a microscope
describe what occurs between water molecules in hydrogen bonding
Answer:
Explanation: A hydrogen bond in water occurs between the hydrogen atom of one water molecule and the lone pair of electrons on an oxygen atom of a neighboring water molecule The H atom nearly acts as a bare proton, leaving it very attracted to lone pair electrons on a nearby atom
What enzyme connects complementary bases to the DNA?
Answer: Catalysts
Explanation:
Answer:
DNA polymerase, which joins nucleotides to synthesize the new complementary strand.
Explanation:
complete the flow of deoxygenated blood other parts of the body (a)_____(b)_____tricuspid valve (c)______(d)_______capillary bed of the lungs(alveoli)
Answer:
The correct flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
Explanation:
Deoxygenated blood is moved from the tissues to the venules, veins or vena cava to the right atrium chamber and move through the tricuspid valve present in between both right chambers right atrium and right ventricle.
From the right ventricle, the deoxygenated blood is pumped into the pulmonary artery that takes the blood to the lungs more specifically to the capillary bed of lungs.
Thus, the flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
How do global winds affect climate?
In which of the following cellular processes is water passively transferred in and out of a cell, across the cell
membrane?
A
Hydrolysis
B
Osmosis
с
Cyclosis
D
Active transport
Describe the meaning of parsimony and give an example.
Answer:
(Not wanting to spend or use something)
Explanation:
Like someone or something really cheap, not wanting to use something in a way that it is a waste.
A man's car broke down, he didn't want to spend any money repairing it so he did it himself.
Or could just mean being careful with your resources.
4. Explain why water is needed in the light reactions.
Answer:
Light reactions occur when plants synthesize food from carbon dioxide and water, referring specifically to the part of energy production that requires light and water to generate electrons needed for further synthesis. Water provides the electrons by splitting into hydrogen and oxygen atoms.
Explanation:
Which process is part of translation but not transcription?
A. a DNA template is used to create an mRNA strand.
B. a tRNA template is used to create a DNA strand.
C. a tRNA template is used to create an mRNA strand.
D. an mRNA template is used to create an amino acid chain.
Answer:
D. an mRNA template is used to create an amino acid chain.
Explanation:
Which process is part of translation but not transcription? A DNA template is used to create an mRNA strand. A tRNA template is used to create a DNA strand. A tRNA template is used to create an mRNA strand. An mRNA template is used to create an amino acid chain.
s
An mRNA template is used to create an amino acid chain.- is part of translation but not transcription.
Answer: D
Explanation:
the other person said it and I got a good grade
How do enzymes speed up the rate of biological reactions?
A. Enzymes increase the activation energy of the reaction.
B. Enzymes provide a site where reactants can be brought together.
C. Enzymes become reactants and are used up in the chemical reaction.
D. Enzymes change the temperature of the surroundings to be suitable for the
reaction.
Answer:
I think it decreases the activation energy needed for the reaction to start.
Explanation:
I think that's right but it's not an answer choice.
Organic semiconductors are a new technology that scientists are considering for the next generation of solar
panels. Manufacturers want to produce efficient semiconductors at a low cost. Which type of organic
semiconductors would be most desired as a solar panel technology?
The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.
In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:
High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.
Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.
Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.
Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.
Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.
It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.
for similar questions on semiconductors.
https://brainly.com/question/3537004
#SPJ8
a mutation that changes the arrangement of nitrogen bases in a gene is a ___ mutation
Answer:
frameshift
Explanation:
A mutation that changes the arrangement of nitrogen bases in a gene is a frameshift mutation
Why are stem cells important to multicellular organisms?
Answer:
its because of there capacity to differentiate
Answer:
Explanation:
The fabulous ability of an embryo to diversify and of certain adult tissues to regenerate throughout life is a direct result of stem cells, nature's gift to multicellular organisms.
PLEASE HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.......... please help
Which of the following is not a consequence of moving from underground mining to surface mining?
a.
increased land degradation
b.
increased water and air pollution
c.
mining collapses
d.
changes to the landscape
Mining collapses is not a consequence of moving from underground mining to surface mining. Thus, the correct option is C.
What are the consequences of mining?Surface mining also known as strip mining can severely erode the soil or reduce its fertility. Mining results in polluting waterbodies or drain underground water reserves. It scar or altar the landscape, damage the roads, homes, and other structures and also destroy the wildlife.
When the minerals are close to the surface of earth, the earth is removed, this causes the destruction to the shape of the land and the flora and fauna which are living in that particular area. Surface mining destroys all the plant life in the area which the mine occupies.
Therefore, the correct option is C.
Learn more about Mining here:
https://brainly.com/question/14277327
#SPJ6
what amount of chromosomes do you have after dna replication?
Answer:
The amount of chromosome remains the same after DNA replication
Explanation:
The amount of DNA doubles after replication but the amount of chromosome remains the same.
Read the paragraph.
Bridges, railroads, tall buildings, ships, airplanes, telephones, and electric lighting would all be lost if we mislaid or lost our ability to count to
compute stress and strain, to lay out angles and curves, or to weigh and measure the exact quantities that modern science demands. Living
onditions would go back to a simpler form with small communities of tiny huts amid people bartering one simple commodity for another. The
world, as we know it could not survive without mathematics. Number systems have been developed in response to humanity's increasing needs
md desires. Without them, both our work and our play would, in large measure, be lost to us.
With which statement would the author be most likely to agree?
1. Number systems are a foundation of cultural progress.
O 2. Our culture is very unstable because of its dependence on mathematics.
3. Basic human needs don't change very much throughout history.
4. Play is a natural human activity which needs little direction or structure.
Answer:
1
Explanation:
i got it correct
Answer:
1.
Number systems are a foundation of cultural progress.
Explanation: I took maps test
Answer is you brainiest - not joking.
After measurements or observations are made in a scientific investigation, it is most appropriate to A. organize the data in a chart or table. B. propose a new scientific question. C. draw a conclusion. D. formulate a hypothesis.
Answer:
A
Explanation:
Without organizing you can go on with the next steps since data alone is worthless but information (organized data) is the most important thing for a scientific investigation.
I need help asap please help me I will give brainlist
Answer:it will wither
Explanation:
any parasite will kill living organimes
Tissues are groups of specialized
organelles.
organs.
genes.
THIS ONE cells.
In addition to cells, what can tissues be made of?
THIS ONE an extracellular matrix
THIS ONE fibers
enzymes
THIS ONE cell junctions
Answer:
- Tissues are groups of specialized cells.
- In addition to cells, tissues are also composed of extracellular matrix.
Explanation:
Cells are the structural and functional unit of living organisms. These cells have the ability to multiply and differentiate to form specialized cells.
A group of differentiated cells join with other similar cells to form a specialized tissue, which will be part of an organ or body structure. Tissues are formed both by cells —cellular component— and by extracellular matrix, which contains fibers and is produced by the same cells.
The other options are not correct because:
Organelles: are intracellular structures. Organs: are formed by tissues, such as the heart, intestine or muscle. Genes: are fragments of DNA with structural or functional information of a living being. Fibers : are part of the extracellular matrix. Enzymes : specialized proteins with a catalytic function.Cell junctions: they allow the union and cohesion between cells.Which of the following is the most likely outcome of the interaction between the Nazca Plate and the South American Plate?
The Nazca Plate will slide under the South American Plate and lead to mountain formation.
The Nazca Plate will slide under the South American Plate and form a rift valley.
The two plates will slide away from each other and form a mid-ocean ridge.
The two plates will slide away from each other and lead to earthquakes.
Answer:
Explanation:
The Nazca plate will slide under the South America plate and lead to mountain formation
The American Plate and the oceanic Nazca Plate—which gave rise to the androgenic (mountain-building) activity—were the two plates that created the Andes. Thus, option A is correct.
What is Nazca Plate and the South American Plate?Subduction is the process where the denser oceanic lithosphere of the Nazca Plate is pushed to descend at an angle into the mantle, where the two plates meet the more buoyant continental lithosphere of the South American Plate.
The eastern margin of the oceanic Nazca Plate is being subducted beneath the continental South American Plate at a convergent boundary, creating the trench.
There were ruptures along a lengthy and large section of the subduction zone as the Nazca plate migrated eastward and below beneath the South American plate.
Therefore, Nazca Plate will slide under the South American Plate and lead to mountain formation.
Learn more about Nazca Plate here:
https://brainly.com/question/7152222
#SPJ2
