Answer:
Simple reflex action is not really learned and is automatic and involuntary whereas conditioned reflex action is voluntary and has to be learned.
Explanation:
Question 14 of 20
You have two rocks made of the same material that are at the same
temperature. The first rock has three times the mass of the second rock. How
does the thermal energy of the two rocks compare?
A. The first rock has six times the thermal energy of the second rock.
B. The second rock has three times the thermal energy of the first
rock.
C. The second rock has one-third as much thermal energy as the first
rock.
D. The rocks have the same amount of thermal energy.
Answer:
The rocks have the same amount of thermal energy.
what does photosynthesis form in a leaf first?
the process plants use to produce food is photosynthesis.
the answer is food (food in the presence of starch=sugar) and oxygen.
The early stage of photosynthesis is composed of light-dependent activities. In the first phase, light energy is converted to the chemical energies ATP and NADPH (reducing power).
What is photosynthesis?A system of interconnected internal membranes called thylakoid membranes in a chloroplast performs the light activities of photosynthesis.
Each thylakoid membrane contains a large number of protein molecules as well as chlorophyll molecules. The term "photosystem" refers to collections of chlorophyll molecules.
Chlorophyll pigments are used by plants to absorb light energy, transform it into electrons, and then convey those electrons along a protein chain in the thylakoid membrane.
Therefore, light energy is converted to the chemical energies ATP and NADPH (reducing power).
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The process in which an ovum is discharged from an ovary each month is called __________?.
Answer:
ovulation
need 20 characters
In the 1918 flu pandemic, why did more teenagers and young adults die than other
age groups?
1. They spiked high fevers that couldn't be controlled.
2. They didn't rest enough to heal properly.
3. Their bodies were healthier causing an immune system overreaction called a
cytokine storm.
4. They were more susceptible to getting the flu because they were the caretakers
of others who were infected.
Answer:
4
Explanation:
I believe it's four, scientifically speaking a young person most likely wouldn't die of infection because their immune systems can fight off the infection to some degree. But if the young person was the caretaker of someone who was/is infected, the younger person is more susceptible to getting an infection and dying because there is no one there to take care of them when they get infected.
Answer:
their bodies were healthier causing an immune system overreaction called a cytokine storm
hope this helps <3
how do the chromosomes contained in a gamete differ from the chromosomes contained in other normal human cells?
Gametes have 23 chromosomes, while other normal human cells have 46 chromosomes.
What is chromosome?
Chromosomes are threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell.
Difference between chromosomes in gamete and normal humanGametes have 23 chromosomes, while other normal human cells have 46 chromosomes.
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When using Triple Sugar Agar, select the coloration that can be expected with different bacterial growth (select all that apply). Group of answer choices Yellow butt with a red slant Yellow butt with a yellow slant Yellow butt with a green slant Purple slant Red butt with a red slant Black and red slant Metallic green slant Red butt and slant with bubbles
The coloration that can be expected with different bacterial growth when using Triple Sugar Agar are:
Yellow butt with a yellow slantYellow butt with a red slantWhat is bacteria?Bacteria are simple and microscopic organisms which are mostly pathogens of different infectious diseases
For growth to occur in bacteria, different kinds of nutrients are needed in the process called growth media.
Two different growth media which bacteria uses to grow are:
Liquid growth mediaSolid growth mediaIn conclusion; The coloration that can be expected with different bacterial growth when using Triple Sugar are Yellow butt with a yellow slant and Yellow butt with a red slant
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What is the analine blue stained structure in the sample?
The analine blue stained structure in the sample is called; Extracellular tissue
What is the component of the biological structure?From online sources, the analine blue stained structure is a stringy mass beneath the intestinal epithelium that extends into the villi.
Now, Aniline blue binds to extracellular structures such as the fibers in the lamina propria which is the name of the connective tissue beneath the intestinal epithelium.
Finally, the analine blue stained structure is called Extracellular tissue.
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During double fertilization, what is made when a sperm cell combines with the polar nuclei
Answer:
The endosperm is formed
Explanation:
double fertilization, in flowering plantreproduction, the fusion of the egg and sperm and the simultaneous fusion of a second sperm and two polar nuclei that ultimately results in the formation of the endosperm (the food-storage tissue) of the seed. This is called double fertilization because the true fertilization (fusion of a sperm with an egg) is accompanied by another fusion process (that of a sperm with the polar nuclei) that resembles fertilization. Double fertilization of this type is unique to flowering plants (angiosperms) and is responsible for the formation of both the embryo and its potential food source in the seed.
A family released their pet fish family into a local pond. The fish had no known local population. The impact of the fish on the ecosystem is not yet known.
Which term would best define the fish added to the pond?
The term that would best define the fish added to the pond is introduced species.
What is introduction of a species?Adaptation to the conditions of the place in which it was inserted, the absence of predators and degradation are the main factors that lead an exotic species to become invasive, competing with native species for resources and causing a great impact on the community.
In this case, the introduced species are exotic species which has arrived there by human activity, may even be harmful to the entire ecosystem because they can break the delicate equilibrium of the ecosystem.
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Answer:
A family released their pet fish family into a local pond. The fish had no known local population. The impact of the fish on the ecosystem is not yet known.
Explanation:
introduced species
A DNA segment in a somatic cell undergoes the mutation shown;
ATTACC à ACTTACC
This represents a
______Mutation
Answer:
This represents a frameshift mutation.
Explanation:
The difference between the two sequences is that there is an extra base (C) in the second sequence. A frameshift mutation occurs when there is an insertion or deletion of a nitrogenous base into a DNA sequence.
Which membranous structures conduct impulses through the sarcoplasm to stimulate the release of calcium?.
Answer:T-tubules
Explanation
The action potential invades T-tubules and causes the L-type calcium channels to open, which in turn causes ryanodine receptors (RyRs) in the SR to open and release calcium, which stimulates contraction.
The type of transcriptional control in operons in which a regulatory protein is an activator and stimulates transcription is called.
The type of transcriptional control in operons in which a regulatory protein is an activator and stimulates transcription is called positive control.
What controls the transcription of an operon?The regulatory DNA sequences are the important class of factors that controls the transcription of an operon.
The types of transcriptional control in operons in which a regulatory protein is an inhibitor and inhibits transcription are called negative control.
Therefore, the positive control and negative control of the transcription of an operon depend on the nature of regulatory proteins.
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What is the benefit of using utility-scale solar for energy over using active solar energy for a home?
A. Homeowner can sell electricity for profit
B. Homeowner will have immediate cost savings.
C. Homeowner is not responsible for installation.
D. Homeowner will see if you were cost savings over time.
Answer:
I think the answer is choice D
the virus known as ________ primarily infects lymphocytes.
The virus known as Epstein-Barr virus primarily infects lymphocytes
What are Epstein-Barr virusesEpstein- Barr viruses are viruses that causes mononucleosis. They are from the family Human gammaherpesvirus 4.
These viruses preferentially infects the human B- lymphocytes and may also infect the epithelial cells of the body.
Therefore, the virus known as Epstein-Barr virus primarily infects lymphocytes.
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CR
Pre-Test
Active
1
2
Which event signals the birth of a star?
A core shrinks and explodes in a supernova.
A protostar collapses, becoming dense and hot.
Extreme heat and pressure causes nuclear fusion.
A mass of gas and dust grows and forms a protostar.
Mark this and return
Hydrogen and helium atoms fuse together to generate stars. The heat produced by this process releases a lot of energy. Four hydrogen atoms and one helium atom are fused together in this procedure. Thus, the correct option is C.
What is helium?Hydrogen and helium atoms fuse together to generate stars. The heat produced by this process releases a lot of energy. Four hydrogen atoms and one helium atom are fused together in this procedure. The nuclear fusion processes are caused by the external heat, pressure, and gravitational force. The pressure produced by the heat allows the helium atom to fuse with carbon. These fusions are required to give the star its form.
The nuclear fusion processes are caused by the external heat, pressure, and gravitational force. The pressure produced by the heat allows the helium atom to fuse with carbon. These fusions are required to give the star its form.
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Why are arthropodes the most diverse group
Arthropods are the most diverse group of living organisms because they have developed a better adaptation to different environments.
What are arthropods?Arthropods are invertebrate animals of the phylum Arthropoda, characterized by a chitinous exoskeleton and multiple jointed appendages.
Arthropods are represented in every habitat on Earth and show a wide variety of adaptations.
Therefore, Arthropods are the most diverse group of living organisms because they have developed a better adaptation to different environments.
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What kind of calls are usually smaller and found in simpler forms of life
Which lipoprotein is made inside the small intestinal cells and transports dietary fats through the circulatory system to the liver and other tissues?.
Answer:
Chylomicrons
Explanation:
These are big triglyceride-rich particles produced by the colon that help transport dietary triglycerides and cholesterol to peripheral tissues and the liver.
question 4 sophisticated use of contrast helps separate the most important data from the rest using the visual context that our brains naturally respond to.
Sophisticated use of contrast helps separate the most important data from the rest using visual composition and the visual context our brains naturally respond to.
What is a visual composition?In the visual, composition is the placement or arrangement of visual elements or ingredients in a work. Composition means "putting together", and the various visual elements are the vocabulary visual artists use to compose.
With this information, we can conclude that sophisticated use of contrast helps separate the most important data from the rest using visual composition and the visual context our brains naturally respond to.
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Which instrument is best suited for measuring the dimensions of a shoebox?
a triple-beam balance
a volumetric flask
a ruler
a caliper
Answer:
a ruler
Explanation:
I say A ruler because think how small a shoebox is a shoebox is not that big so you would measure it with a ruler
A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision?
Answer:
0 joules
Explanation:
I think the correct answer from the choices listed above is 0. The kinetic energy after the perfectly inelastic collision would be zero Joules. A perfectly inelastic collision occurs when the maximum amount of kinetic energy of a system is lost. Hope this answers the question.
.All cells share common traits that help scientists draw conclusions about the basic needs and functions of living organisms. What is the meaning of cell theory?
O proves that all cells have all the same structural parts
Ost
The connotation of the cell theory is that a cell is the structural and functional division of an organism. A cell is the smallest unit of all living entities. All living organisms whether it is plants or animals are constructed up of cells.
Who proposed the cell theory?The cell theory was proposed by a German botanist M.J Schleiden and a German zoologist T. Schwann.
The cell theory was further distilled in 1855 by German biologist R. Virchow. According to him, "All cells are arising from pre-existing cells."
Therefore, it is well described above.
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A page is to a book as a ___________ is to the genome.
A page is to a book as a gene is to a genome.
What is the relation between a gene and a genome?
A gene is a fundamental unit of heredity and a DNA sequence that determines the production of a specific gene, which can be a RNA or protein.
However, the genome is the collection of or the total of all the DNA sequences in an organism.
Therefore, as a page which is a unit is to a book, so as the gene is to the genome.
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X
-6
-1
0
3
y
-7
1
9
-2
What is the domain of the given function?
O {x|x = -6, -1, 0, 3}
(y ly=-7, -2, 1, 9}
{x|x=-7, -6, -2, -1, 0, 1, 3, 9}
(y ly=-7, -6, -2, -1, 0, 1, 3, 9}
1
Answer:
-1
Explanation:
(y ly=-7, -6, -2, -1, 0, 1, 3, 9}
1
a) What did scientist Calderón-Garcidueñas find when she performed MRI
scans and autopsies on the brains of children in Mexico City? (3 points)
How does sucrose move in the sieve tube?
The sucrose move in the sieve tube by active transport.
What is active transport?Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.
In this case, the sucrose moves from companion cells into sieve tube elements by active transport. This reduces the water potential of the sieve tube element by osmosis, which increases the hydrostatic pressure.
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Herbivores have teeth designed for
eating...
A. Plants only
B. Animals only
C. Plants and animals
Answer:
A. Plants only
Explanation:
Herbivores are animals that only eat plants. So therefore A. Plants only is the answer. Brainliest?
Answer:
A. Plants only
Explanation:
Hope It Helps!!!
State one function of the pancreas (Please do not copy and paste and keep the answer simple)
What two components are often found as part of an ezyme
Answer:
Apoenzyme and the co-factor are the two components of an enzyme.
Hope it helps!
Land heats and cools more than water because ________.
Land heats and cools more because it has a lower specific heat capacity that water.
To answer the question, we need to know what heat is
What is heat?This is the amount of thermal energy in a body
What is specific heat capacity?This is the amount of heat required to raise 1 kg of substance by 1 °C.
So, the greater the specific heat capacity, the greater he amount of heat required.
Since land which has a specific heat capacity of less than 1 J/g-°C and water which has a specific heat capacity of 4.2 J/g-°C, thus, land heats and cools more because it has a lower specific heat capacity that water.
So, land heats and cools more because it has a lower specific heat capacity that water.
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