5/28 LC-1 Evolution
Evolution is best defined gs
o the changing of a population to simpler forms over time
process by which a population of organisms who are best adapted change over time
different populations adapting to the same environment
Answer:
F
Explanation:
F
Solvency, cohesion, adhesion, hydrogen bonding, chemical reactivity, and thermal stability are all important properties of _________ and account for its ability to support life.
Answer:
Water
Explanation:
has the properties of water
Answer:
water
Explanation:
i just did it
Which characteristic distinguishes prokaryotes from all eukaryotes?
a. ribosomes
b. DNA
c. phospholipids in cell membranes
d. none, as both may share these features
e. cell wall
Answer:
c. phospholipids in cell membranes
How does fluoroquinolone help?
How has the climate changed in the last 100 years and how do you imagine it will be for the next 100 years?
Duckweed is a tiny floating aquatic plant that can reproduce so rapidly that it can completely cover the surface of small fish hatchery ponds. One proposal to limit the growth of this invasive plant is to use colored panels to shield the ponds, inhibit photosynthesis, and kill this pest. What color filters would you order for the panels in this project
Answer:
Green color filter
Explanation:
It is given that Duckweed grown on water and covers all part of the pond very rapidly. In order to limit their growth is proposed to use a color panel so as to shield the ponds and inhibit photosynthesis process and also kill the pests.
So a green colored panels can be used to shield the pond. This is because the photosynthetic pigments such as the chlorophylls absorbs all the green frequencies of the visible light except for the wavelength that corresponds to the green color. Therefore, by using a green filter, the wavelength corresponding to blue, yellow, red and purple colors are absorbed. Thus the plants would not be able to use the green light for the process of photosynthesis. This would help in limiting the growth of the duckweeds.
why are the chances for a husband and wife having either a boy or girl 50:50?
In order to ensure cross-cultural measurement equivalence of the measure used, studies should be conducted to test the reliability and validity of measures in different cultures.
True or False
Answer: True
Explanation:
Cross-cultural measurement equivalence simply means the measurement level through which the test scores across different cultures can be compared.
In order to ensure cross-cultural measurement equivalence of the measure used, it should be noted that studies should be conducted to test the reliability and validity of measures that are used in different cultures.
Therefore, the correct option is true.
which stable element is used to determine the age of volcano rock
Escribe los nombres de cinco plantas de tratamiento del agua que se encuentren en Bogotá
Answer:
Bogota esta ubicasa en un altiplank, Llama do sabana de Bogota, en la Cordillera Oriental de la Andes a una altura de 2.640 metros (8.660 pies) sobre el nivel del mar. La region extendkda se conoce Como Altiplank Cundiboyacense, que significa "altiplano de Cundinamarca y Boyaca". El rio Bogota cruza la sabana y forma el Salto del Tequendama al suroeste. Los rios afluentes forman valles done se encuentran aldeas y cuya economic se basa en la agrictura, la ganaderia y la prosuccion artesanal. La sabana limitia al este con los cerros orientals que corren de norte a sur y contienen los cerros Guadalupe y Monssrrate. El limits occidental de la ciudad esta formado por el rio Bogata. Hacia el norte, el Area Metropolitana de Bogata se extiende sobre el altiplano hasta las localidades de Cina y Sopo.
Espero que eato haya ayudado.
how to find the formula for the nth term
mollusks and arthropods get hit by water constantly so they built protective shell what can we hypothesize from this?
Answer:
Convergent Evolution.
Explanation:
When two different species that are very distantly related but have similar traits its Convergent Evolution due to environmental pressures.
Does negative feedback stop or speed up the release of hormones?
Explanation:
Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus causes the release of a substance whose effects then inhibit further release. In this way, the concentration of hormones in blood is maintained within a narrow range.
Flatworms are part of the phylum Platyhelminthes, which means flat worm in Greek. Flatworms have eyespots that help them sense movement around them. What other characteristic do flatworms have?
A.
ability to regenerate when their body is damaged
B.
nostrils
C.
a long, slender round body
D.
segmented body parts
Answer:
A- Flatworms are unsegmented and only have one mouth/anus opening. And they are obviously flat
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what is environmental degradation?
Answer:
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; ...
Explanation:
Answer:
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution
Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. The only difference between your control and experimental groups is the type of food the tadpoles receive.
Which is a good hypothesis for this tadpole experiment?
A. Tadpoles will be larger if the ph is higher.
B. Tadpole size will be unpredictable if fed a meat-based diet.
C. Tadpoles will be larger if fed a meat-based diet.
D. Tadpoles fed a meat-based diet will be bigger , but only in a tank with low numbers.
Answer:
The correct answer is - C. Tadpoles will be larger if fed a meat-based diet.
Explanation:
In this experiment, it is observed that how the change in the type of diet if meat diet is internalized how the average weight of tadpoles increase comparatively than other types of diet.
In this experiment, pH remains the same so that can there would be no effect on this by a change in pH can be established by this experiment. The dependent variable is the increase in size so the correct hypothesis will be - C.
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
Objects need to be in contact with each other in order to experience friction.
O True
O False
Answer:
false
I think I am not sure
Answer:
Yes
Explanation:
Because Friction is the force resisting the motion of solid surfaces that means that they have be in contact for there to be friction.
Which evidence in the diagram above indicates that a gas was
produced as a result of the reaction?
Answer:
the balloon
Explanation:
How photosynthesis happen with explanation
Answer: During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose
Explanation:
Explanation:
photosynthesis is a process in which green plant use energy from the sun light to transfer carbon dioxide ,water and mineral into oxygen and other organic compounds .
photosynthesis happen when water is absorbed by root of green plants and is carried by the xylem and carbon dioxide is obtained from air that enters leaves through the stomata and diffuses to the cell containing chlorophyll .The green plans pigment chlorophyll is uniquely capable of conserving the active energy of light into a latent from that can be stored (in food) and used when needed .
i hope it help you...........
Compare Law of Conservation of energy and Law of Conservation of matter?
Answer:
Conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. The first kind of energy to be recognized was kinetic energy, or energy of motion. In certain particle collisions, called elastic, the sum of the kinetic energy of the particles before collision is equal to the sum of the kinetic energy.
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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A massive increase in the growth of a specific species of algae resulted in record-breaking levels of a potentially dangerous toxin being released into the water. A researcher hypothesizes that the unusual growth of this algal species was caused by an increase in water temperature. The researcher designs an experiment to test the hypothesis. Which of the following is the dependent variable in the researcher's experiment?
a. The growth of the algae
b. The temperature of the water
c. The concentration of toxin in the water
d. The different species of algae growing in the water
Answer:
a. The growth of the algae
Explanation:
The researcher already knows that the over-growth of algae species results in excessive levels of a potentially dangerous toxin being released. But he/she wants to know what is causing this algae over-growth. The principal hypothesis is that the increase in water temperature is the cause of the unusual growth of this algal species. The researcher hypothesizes that the higher the temperature levels are, the more growth rate the algae will exhibit.
So in this experiment, the researcher can voluntarily modify the temperature in order to see how it changes the algae growth.
Before answering the question, let us remember a few concepts.
Independent (manipulated) variable refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. The Dependent variable reacts to any modification of the independent variable. Any change in the manipulated variable provokes a proportional or inversely proportional change in the dependent variable. It represents the quantity of something, such as height, weight, length, rate, etc. It is usually identified by the letter Y.Now, let us analyze the options.
c. The concentration of toxin in the water. This is a dependent variable, which depends on the algae growth. The more algae present, the more toxins. However, this is not what the researcher is studying. He/She wants to know what is causing the increase in algae. So toxins, in this study, would be a secondary effect.
d. The different species of algae growing in the water . Probably this is also related to temperature and the biology of each algal species. However, the researcher is interested in a specific species of algae.
b. The temperature of the water. The temperature of THE water is directly involved in this experiment, but as the INDEPENDENT VARIABLE. The researcher will modify the temperature in order to know how it changes the algae growth. The researcher voluntarily modifies this variable, and this change provokes a change in the dependent variable.
a. The growth of the algae. The Growth of THE algae is the DEPENDENT VARIABLE. It CHANGES ACCORDING TO THE TEMPERATURE. So the change in the algae growth will depend on how the researcher modifies the temperature. We are referring to one specific algal species. This species is responsible for the toxins´ productions and is suggested to depend on temperature.
What is the probability of a father with blood type o and a mother with blood type AB producing a child with blood type o?
A. 0%
B. 25%
C. 75%
D.100%
0% chance because blood type O isn't dominant over the others.
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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.
what is a nucleic acid that contains the genetic information for heredity in most organisms.
Answer:
deoxyribonucleic acid Or ( DNA)
Explanation:
DNA contains the genetic information for heredity in most organisms.
Have a wonderful Day!
Answer:
there's all the answers
Explanation:
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.
What happens when light hits the pigment in photosystem II?
A. It alters the shape of the photosystem II, allowing the light to pass into the thylakoids.
B. It sets off a reaction that releases water molecules into the inner space of the thylakoids.
C. It alters the shape of the photosystem II protein, releasing the water-splitting enzyme.
D. It sets off a reaction that moves energy through the proteins of the thylakoids membrane.
Answer: D
Explanation:
When a photon hit photosystem II, light energy absorbed by one of the pigments in photosystem II, energy is carried from one pigment to another and reach down to the reaction center.
Answer:
It sets off a reaction that moves energy through the proteins of the thylakoids membrane.
Explanation:
Ape-x
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
1. Why is diversity important in maintaining the stability of an ecosystem?
2. What is the broadest level of ecological classification within the biosphere?
What are the major abiotic factors used to characterize them?
3. What is the importance of plants in the ecosystem?
Answer:
if the ecosystem has a diverse range of species, it is more likely to stay safe against any virus that arises. That’s why biodiversity is important to ecosystems because it protects the environment from extreme conditions. Even if some species fail to survive, others will remain to sustain the ecosystem and the living things.
Explanation:
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