Answer:
A- Flatworms are unsegmented and only have one mouth/anus opening. And they are obviously flat
(meow) <3
Stored energy or energy of position is known as
Energy *
1.)Potential
2.)Kinetic
Answer:
Explanation:
1) potential because it is not "in motion"
The factors that affect the climate are *
Answer:
factors effecting the climate
Explanation:
factors effecting the climate
Which of the following choices is an example of a non-specific barrier?
skin
white blood cells
lymphatic system
the immune system
An example of a non-specific barrier is the skin. Thus, the correct option is A.
What are non-specific barrier?Non-specific barriers are the innate, or nonspecific type of immunity of the defense system with which a person is born with. Non-specific barrier protects a person against all the antigens. Innate immunity involves the barriers which keep the harmful materials from entering the body. These barriers form the first line of defense in the immune response of an individual.
Nonspecific defense mechanisms include the skin, mucous membranes, secretions, excretions, enzymes, inflammatory responses, genetic factors, and the behavior patterns.
Skin is a physical and non-specific barrier which is covered with oily and acidic pH which ranges from 3 to 5, and the secretions from sebaceous and sweat glands, respectively.
Therefore, the correct option is A.
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What will happen to life on earth if the average annual temperature on earth continues to increase?
for me every stress comes on human can lessen its life span ,so i believe its the same to our planent.
Which is an example of refraction
5) The following picture is of a single organism that has been Gram stained and is viewed under oil immersion on the compound light microscope. What is the reason for a single organism appearing like this after being Gram stained
Hi. You have not submitted any images about the microorganism the question refers to. This makes it impossible for me to answer your question. However, I will try to help you as best I can.
Gram stain is a test done to find out whether the bacteria are gram negative or gram positive. In this test, the bacteria are submitted to a certain type of dye and then are observed under a microscope. If the bacteria is gram positive, it will be purple in color. If the bacteria is gram negative, it will be red in color.
This is because after they are subjected to the violet dye, both types of bacteria absorb the color of the dye. However, before being observed under the microscope, the bacteria are washed with alcohol. Alcohol removes the dye from the gram negative bacteria, leaving them reddish. On the other hand, in gram positive bacteria, alcohol dehydrates the cell wall, compressing the pores and making the cell wall impermeable, preventing the dye from being released and, therefore, leaving the bacteria with a purple color.
4. An enzyme that aids in breaking down of complex sugar into simple digestible
sugars is .... class9 standrad?
Answer:
One such enzyme is amylase.
Explanation:
Amylase is an enzyme found in saliva in the mouth that breaks down amylose in starch.
Which of the following best describes the role of meiosis?
1Creating egg and sperm cells (gamete sex cells).
2Producing more cells for an organism to grow bigger.
3Producing more organelles.
4Creating new cells that are
Answer:
eeeee
Explanation:
fdsrt fdsss fddssscdddd fddr
which stable element is used to determine the age of volcano rock
how to find the formula for the nth term
which two are the most similar?
A: comets and asteroids
B:comets and meteorites C:asteroids and meteoroids
D: asteroids and meteorites
Answer:
C.Astroids and meteoroids
Which evidence in the diagram above indicates that a gas was
produced as a result of the reaction?
Answer:
the balloon
Explanation:
Super saturated solutions are used to make rock candy. Please describe how the crystals are formed, be sure to use the terms Solute and Solvent.
Answer:
Once the solution cools, it now has more solute than it normally could have, and this is called a supersaturated solution. Once a solution becomes supersaturated, it wants to crystallize the excess solute. The solute will form crystals on any surface. In our case the surface is a string, and we are using a lifesaver candy as our “seed.”
Explanation:
Rock candy is a type of candy made by growing sugar crystals on a string or stick.
Why are Super saturated solutions used?Super saturated solutions are often used to make rock candy because they contain more solute (sugar) than the solvent (water) can normally dissolve at a given temperature.
The first step in making rock candy is to heat water in a saucepan and add sugar to it. The sugar dissolves and forms a solution as the water heats up. After that, the solution is heated until it is completely saturated.
This occurs because the super saturated solution is unstable, and the excess solute (sugar) in the solution wants to escape and form crystals.
As time passes, more sugar dissolves from the solution and adheres to the crystals on the string or stick, causing them to grow larger.
The process is repeated until the crystals reach the desired size or until all of the excess solute has been removed from the solution.
Thus, preparing a super saturated solution of sugar and water, then dipping a string or stick into the solution and allowing the excess solute to come out of the solution and form crystals on the string or stick, is the process of making rock candy.
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After a skeletal muscle fiber is treated with a membrane permeable drug that speeds up the action of the SR Ca 2-ATPase, how would contraction differ after multiple and frequent action potentials
Answer:
the twitch would be shorter
Explanation:
In muscle cells, the calcium (Ca2+) pump ATPase membrane transport proteins maintain a low cytosolic Ca2+ concentration in order to promote muscle contraction. Muscle relaxation occurs when the sarcoplasmic reticulum reabsorbs Ca2+ through the Ca2+-ATPase protein, thereby reducing intramuscular Ca2+ levels. In muscle contraction, intracellular Ca2+ levels are raised due to the release of Ca2+ from the sarcoplasmic reticulum (SR) via Ca2+-release channels. In consequence, it is expected that a specific drug that speeds up the action of (Ca2+) pump ATPase protein should shorten the contraction-relaxation cycle by increasing the velocity of muscle relaxation.
During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the same effect on plasma glucose levels as glucagon. Explain how epinephrine and norepinephrine affect plasma glucose and why this is important during exercise.
Answer and explanation:
Epinephrine and norepinephrine are two hormones that are released from the adrenal medulla when the body is under stress (like during exercise, for example) as a part of the sympathetic response.
These hormones have many functions and they all work together to prepare the individual for a fight or flight response - like increasing heart rate and producing bronchodilatation. One of these functions is the rise of glucose levels in blood which is important for this substance to reach several tissues, like the skeletal muscle. The skeletal muscle will make use of this glucose to produce ATP and generate the required energy for muscle contraction through a process called glycolysis, which is key for the fight or flight response mentioned above.
When we exercise, glucose levels rise thanks to these hormones so the skeletal muscle can have enough energy to contract and move as we want. If the exercise is too intense or prolongued, glucose levels will drop and other fuels will be needed to sustain this activity, like stored glycogen and fat.
How are meiosis and mitosis different?
Explanation:
mitosis results in two identical cells while meiosis results in four sex cells.
mitosis:prophase is short,meiosis: prophase is longer.
mitosis: daughter cells are genetically identical,meiosis:daughter cells are genetically different.
Answer:
meiosis and mitosis different by:
in mitosis Daughter cells are genetically identical
whereas in meiosis Daughter cells are genetically different
Do you think websites such as ancestry and 23andme should have databases that are not allowed to be used by law
enforcement or insurance companies, and be 100% private? Currently, they can be used without any restrictions. Explain your answer.
Answer:
its a risky thing to do but i wouldnt say illegal .. like ciggarattes,, they bad bit not ILLEGAL
Explanation:
you dont know who really has your DNA sampled or what they doing with it .. thats the risky pary
BUT this a good question
Explain how fossils, glaciers and magnetic pole wandering provide evidence that supports the theory of
plate tectonics.
Some fossils from the same species are found in different continents, across sea, these species could not swim so big distances, so it suggests that once the continents were joint and species could walk from America to Africa and other continents.
Grooves and rock deposits left by ancient glaciers are found today on different continents very close to the equator, it suggests that the glaciers either formed in the middle of the ocean and/or covered most of the Earth. Today glaciers only form on land and nearer the poles, it can be suggested that glaciers were centered over the southern land mass close to the South Pole and the continents moved to their present positions afterwards.
Polar wandering is the movement of the magnetic poles over Earth’s surface through geologic time. It suggests that plates move.
The Gondwana continents glaciation could only have occurred if the continents were joined together since the centres of the glaciers would have been in the ocean if they were not. Also, the continents, such as South America and Africa are similar with jigsaw puzzle.
What plate tectonics theory?
The plate tectonics theory states that the earth is solid outer crust, the lithosphere, is segregated into plates which further move over the asthenosphere, the melted upper portion of the mantle. Oceanic and continental plates come and joined together, spread apart, and interact at boundaries all over the planet.
Similar fossil plant and animals are segregated by oceans leading to the assumption that they must have lived in adjacent regions when they were alive. Finally, similar rock sequences and mountain ranges could be connected across oceans.
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Which is an example of a cardiovascular disease? a. Flu b. Strep throat c. Arteriosclerosis d. Common cold
Answer: C
Explanation:
The A locus and the D locus are so tightly linked that no recombination is ever observed between them. If Ad/Ad is crossed with aD/aD and the F1 is intercrossed, what phenotypes will be seen in the F2 and in what proportions
Answer:
F2: 1/4 phenotype Ad (genotype Ad/Ad), 1/2 phenotype AD (genotype Ad/aD): 1/4 phenotype aD (genotype aD/aD)
Explanation:
In this case, A and D loci are strongly linked and there is little or no recombination between them. Therefore, Ad/Ad and aD/aD individuals will produce only one type of gametes (i.e., individuals Ad/Ad only can produce Ad gametes, while aD/aD individuals only can produce aD gametes), thereby all F1 will be Ad/ aD. Finally, Ad/aD individuals can produce two types of gametes: Ad and aD, thereby the F2 will be 1/4 Ad/Ad (phenotype Ad), 1/2 Ad/aD (phenotype AD) and 1/4 aD/aD (phenotype aD)
Parental cross: Ad/Ad x aD/aD
F1 generation: Ad/aD
F2 generation:
Ad aD
Ad Ad/Ad Ad/aD
aD Ad/aD aD/aD
F2 generation: 1/4 Ad/Ad (phenotype Ad), 1/2 Ad/aD (phenotype AD) and 1/4 aD/aD (phenotype aD)
Use Figure 12.1 and the information here to answer the following questions. The unlettered circle shows a diploid nucleus with four chromosomes. There are two pairs of homologous chromosomes, one long and the other short. One haploid set is symbolized as black and the other haploid set is gray. The chromosomes in the unlettered circle have not yet replicated. Choose the correct chromosomal conditions for the following stages.
Which process formed the cell at A?
a.) meiosis I
b.) meiosis II
c.) anaphase
d.) mitosis
Answer:
If I am not wrong then the correct answer from my thinking is c.anaphase
how do organisms reproduce asexually
Answer:
my cloning all the type of cells the animal has
Explanation:
how does genetic factors influence the growth of trees in a forest?
Hi there. An answer is below!
Explanation:
The genotypes in a plant determines the amount of time it takes to grow. For example, if a plant has genotypes that are young, they will grow quicker. A plant that has older genotypes will grow slower. These genetic factors are what make trees grow quicker or slower than each other.
Cómo es estudiado hoy el organismo humano?
30. Organism Y lives in a dry, dying tree and obtains its nutrients from the tree that it lives
on. Thus, organism Y is known as a
A bulk feeder
B. suspension feeder.
C. fluid feeder
D. substrate feeder
Answer:
The answer is D. because they live on or in their food.
Explanation:
substrate feeders include maggots, larva of moth,.
eat thru soft tissue of all living things.
Label each image as containing atoms only,molecules that are not compounds, or compounds.
tæñgæ ikaw mama mo jahagdjshsajaj
Huntington disease is caused by the inheritance of a dominant allele for a gene that affects the brain. The symptoms of the disease include the lossof mental abilities and muscle coordination
Answer:
Explanation: Where is your question, I'd love to answer once it's given.
Which of the following resources do goats contribute to society?
O rope
O paper
O iron
O dairy
Answer: The correct answer is dairy
Explanation: This answer has been confirmed correct.
Goat milk is used for making cheese and other dairy products.
Applying a force to an object causes it to
Change it's momentum
O None of the above
O Gain mass
O Accelerate
Green plants that can provide their own food through the process of photosynthesis
Answer:
it’s true...................
Answer:
There was no question here. But yes, plants are green because of chlorophyll which is located in the chloroplast of plant cells. Chlorophyll makes the plants green which allows for photosynthesis. Chloroplast stores the chlorophyll.
