When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferences. 20 Isopods are placed in a 2-choice choice chamber. A cotton ball dampened with distilled water is placed in Chamber A; A dry cotton ball is placed in Chamber B. After 15 minutes 2 Isopods are located in Chamber B, and 18 isopods are found in Chamber A. Perform the chi-squared test to determine if the distribution of isopods is significant or due to random chance.
a) chi-squared is 1.20, no it is not significant
b) chi-squared is 8.42, no its not significant
c) Chi-squared = 12.8, yes it is significant
d) Chi-squared is 18.59, yes it is significant
Answer:
c
Explanation:
Random distribution of the Isopods should be 50/50 in A and B.
Chi-square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = expected frequency
Chamber O E Chi-square
A 18 10 [tex]\frac{(18 - 10)^2}{10}[/tex] = 6.4
B 2 10 [tex]\frac{(2 - 10)^2}{10}[/tex] = 6.4
Total Chi-square = 6.4 + 6.4 = 12.8
Degree of freedom = 2 - 1 = 1
Tabulated Chi-square (α = 0.05) = 3.8415
The calculated Chi-square exceeds the critical value, hence, it is significant and not due to random.
The correct option is c.
Consciousness can best be described as __(blank)__.
a) Internal chemical systems that are regulated by a circadian rhythm
b) an ability to sleep and have lucid dreams
c) a lack of awareness of things going on inside or outside of yourself
d) an awareness of things going on inside or outside of yourself
Consciousness can best be described as an awareness of things going on inside or outside of yourself, hence option D is correct.
How consciousness is regulated?Wakefulness/arousal and awareness are frequently used as the two components that make up consciousness.
It appears that proper arousal levels and subsequently wakefulness, which is required for consciousness, depend on well-synchronized phases of awake and sleep.
Circadian rhythms are changes in the body, brain, and behavior that occur on a 24-hour cycle. Most living things, including animals, plants, and bacteria, are impacted by these natural processes, which predominantly react to light and darkness.
Therefore, the 24-hour cycle of normal physical, emotional, and behavioral changes that the body experiences.
Learn more about consciousness, here:
https://brainly.com/question/939162
#SPJ2
Molecules that make up living things and contain carbon are called __________ molecules.
Molecules that make up living things and contain carbon are called organic molecules.
Organic molecules are those that derive their three-dimensional configurations primarily from their carbon skeletons.
Organic molecules are essential for the birth, development and functioning of all cells that make up living organisms.
About organic molecules:
All organic molecules contain carbon and practically always hydrogen, it is also frequent that they have oxygen or nitrogen.These chemical elements enable multiple and covalent bonds to be established, allow carbon atoms to develop three-dimensional skeletons, and give rise to multiple functional groups. Proteins, vitamins, carbohydrates, lipids, and nucleic acids are organic biomolecules, which are synthesized by living organisms.Therefore, we can conclude that molecules that make up living things and contain carbon are called organic molecules, which a living being needs to develop normally.
Learn more here: https://brainly.com/question/13144394
As a scientist employed by the FDA, you've been asked to sit on a panel to evaluate a pharmaceutical company's application for approval of a new weight loss drug called Fat Away. The company has submitted a report summarizing the results of their animal and human testing. In the report, it was noted that Fat Away works by affecting the electron transport chain. It decreases the synthesis of ATP by making the mitochondrial membrane permeable to H+, which allows H+ to leak from the intermembrane space to the mitochondrial matrix. This effect leads to weight loss.How would you explain the decreased synthesis of ATP?
Answer:
The right response is "body temperature".
Explanation:
Whilst also growing the basal leakage of protons, this same drug Fat blocks the development of ATP. The whole change throughout the electrochemical gradient including its proton, therefore, induces the release of a possible form of radiation, rather than being transferred to ATP. Through thermoregulatory autophagy, outlet temperature throughout the individual contributes to loss, associated with elevated body temperature. Elevated body temperature would have the additional effect of removing fat.Type your response in the box.
Nutrition is a common topic in the media, whether it's a new diet plan or a new "superfood" on the market to benefit
our health. Some of these products are scientifically sound, while others aren't. How do we tell the difference?
PLEASE HURRY
Answer:
To find out whether a product is scientifically sound, check the FDA standards for the product. Another option is to ask a medical expert, such as a doctor or a nutrition scientist, whether the product is scientifically sound.
What is the process depicted in this figure and why is it important?
Answer:
The correct answer is - antigenic shift due to mutation.
Explanation:
In this image, there is a representation of the antigenic shift or change takes place to evolve to a new strain of influenza virus from the original virus that has a different antigen on the surface of the virus than the new strain. In this image it is shown that the surface H antigens went through a shift to form a new strain while N antigen remain the same.
This is important to adapt and evolve according the internal environment of the host show this type of mutation requires if moving from one host to another (human to pigs).
someone help plzz brainliest
how does increasing the size of the habitat affect carrying? explain your answer. recall the scenarios: 0-15 years, little land; 15-30 tears, moderate land;30-45 years, ample land
plzzz helpp
I meant years not tears
Answer:
so basically carrying capacity is "the amount of organisms a specific environment can support", so if the environment is increased, most likely, more space and food will be available, which means the environment can hold more organisms, causing the carrying capacity to increase
Explanation:
what I just said lol
Answer:
Increasing the habitat size will increase the carrying capacity. Carrying capacity is the maximum amount of organisms a habitat and its resources can carry. So if the habitat expands and more resources become available, the population would expand. As you can see for the first 15 years, when it was the little land, there was only about () rabbits, but as the land grew throughout the years, the rabbit population grew. 15-30 years with moderate land had around () rabbits, and the ample land in years 30-45 had around () rabbits, a little over two times the amount the little land had.
Explanation:
just fill in the ()s with the numbers that show on the graph. This is kinda late but hopefully it'll help anyone who needs it.
how does carbon moves from the atmosphere to the biosphere?
Answer:
Via a range of pathways, carbon travels from one storage reservoir to another. In the food chain, for example, plants, by photosynthesis, transfer carbon from the atmosphere into the biosphere. Respiration, excretion, and decomposition release the fuel, continuing the cycle, back into the atmosphere or soil.
Explanation:
Which of the following is found in animal cells, but not plant cells?
lysosome
vacuole
mitochondria
endoplasmic reticulum
If an object has 50 Joules of kinetic energy and 237 joules of potential energy, how much mechanical energy does it have? ME = PE + KE
Answer:
287J
Explanation:
Given parameters:
Kinetic energy = 50J
Potential energy = 237J
Unknown:
Mechanical energy = ?
Solution:
The mechanical energy of a system is the sum of the potential energy and kinetic energy of that system.
Kinetic energy = Potential energy + Kinetic energy
Kinetic energy = 50J + 237J = 287J
The end result of meiosis is:
O Four diploid cells that are genetically different
O Four haploid cells that are genetically different
O Two diploid cells that are genetically identical
O Two haploid cells that are genetically different
Answer:
Explanation:
d two haploid cells that are genetically diffrent
GUYS HELP FAST I GOT 3 minutes
Answer:
what do you zxvbnbvcxcv
Explanation:
Which layer is between the asthenosphere and the outer core?
A. Crust
B. Inner core
C. Lithosphere
D. Mesosphere
Answer:
D. Mesosphere
Explanation:
can someone quickly answer this i need to finish so many other things lol
Explanation:
A eukaryotic cell contains membrane-bound organelles such as a nucleus, mitochondria, and an endoplasmic reticulum. Organisms based on the eukaryotic cell include protozoa, fungi, plants, and animals. These organisms are grouped into the biological domain Eukaryota.
Any organism which has a closed membrane for a nucleas is a eukaryotic cell.
(organisms who dont have a nuclear memebrane is called prokaryotic cell)
We have eukaryotic cells as we have nuclear membrane but a bactaria(a prokaryotic cell) doesnt have a nuclear memebrane and all of its nuclear substances are floating insdie it getting jumbled up.
Running for a long period of time, such as during a marathon, can result in muscle fatigue. Which process is important to a runner at the end of a marathon?
A. lactic acid fermentation to produce ATP without oxygen
B. Alchoholic fermentation to release carbon dioxide
C. The Krebs cycle to produce NADH and FADH2
D. The electron transport chain to produce ATP
The process that is important to a runner at the end of a marathon is lactic acid fermentation to produce ATP without oxygen (Option A).
Cellular respiration refers to the reactions by which aerobic cells normally produce energy in the form of ATP by using energy stored in the chemical bonds of foods and oxygen.Muscle cells can produce ATP by both cellular respiration (aerobic conditions) and acid lactic fermentation (anaerobic conditions).Acid lactic fermentation is energetically much less efficient than cellular respiration, but ATP production in cellular respiration is much slower than in fermentation, thereby muscle cells use this pathway (fermentation) when they cannot get oxygen fast enough to meet their energy requirement.In conclusion, the process that is important to a runner at the end of a marathon is lactic acid fermentation to produce ATP without oxygen (Option A).
Learn more in:
https://brainly.com/question/2095032
When two different strains of bacteria are cultured together in the same petri dish, their populations are not as great as compared to when cultured alone. What type of interaction does this scenario represent?competition
disease
predation
parasitism
Answer: competition
Explanation: i guessed
Measuring Populations (brainliest)
Do you think NASA invented thunderstorms to cover up the sound of space battles? I found this on google and I want to know what yall have to say about it
During what phase is the cell polyploid? Why is it polyploid at this point--what has happened to create this state and why is it important to the process?
Answer:
I that you phase of cell division. First all will write down a definition of word . Polyploid is cell which has two or more pairs of homologus chromosomes. There are two basic types of cell division are meiosis and mitosis
At which point in the eukaryotic cell cycle does mitosis occur?
A.before the G1 phase
B.after the G2 phase
C.following the S phase
D.after the G0 phase
GUYS HELP FAST THE SAM ONE
93
add the ones he got over 3 months to the ones he already had
Reproductive cells are created by _____.
Answer:
Meiosis
Explanation:
Please give me brainliest
Which is the best description of photo phosphorylation
Answer:
The conversion of ADP to ATP using light energy is the best description of photophosphorylation.
The bi-product of Oxygen gas is a result of the decomposition of what molecule
a.Glucose
b.Water
c.Carbon Dioxide
d.ATP
Answer:
the answer is water
Explanation:
water is decomposed and the hydrogen molecule is taken leaving the oxygen as a bi-product
Fill in. Complete the statement below.
3.) _______ or H²0 into chemical energy ( food)
These organisms are referred to as the(4.)______ and they are vitally important to all life on Earth. they produce food to themselves and to feed the costumers who cannot make their own food.(5.)_______ also essential for life, is a by-product of photosynthesis
pako sagot plss
Answer:
3) CO2 + water
4) producers
5) oxygen
Explanation:
Autotrophs are producers which use sunlight, water and carbon dioxide to make their own food. This occurs via the process of photosynthesis in green plants, algae ,phytoplankton and cyanobacteria. These occupy essential places in the food web, and provide the energy used by hetertrophs or consumers.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Consumers carry out respiration to obtain the energy stored in carbohydrates produced by plants.
C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
glucose+ oxygen → carbon dioxide+ water+ energy
What do these two changes have in common?
deep-frying chicken
ice melting in a cup
Select all that apply.
Both are caused by cooling.
Both conserve mass.
Both are caused by heating.
Both are only physical changes.
PLEASE HELP ME!!!
Answer:
Both are caused by heating.
Explanation:
heat cooks things and melts things.
Please help it’s due today!!
EASY!!!!4. Select all that are Non-metals
Magnesium
Phosphorous
Fluorine
Copper
Potassium
lodine
Gold
Answer:
Phosphorus
Fluorine
Iodine
Stand and let your hands hang next to your sides for a few minutes. Then, look at the backs of your hands. Do you see any bumps on the surface on top of your veins? What might those be, and what are their function?
When you stand and let your hands hang next to your sides for a few minutes, the bumps you see on your veins are the valves that help move blood to the larger veins.
What we know about vein valves.There are valves located throughout the veins in our bodies. Most of these are located in points where smaller venules fuse with the larger veins.
Their function is to prevent blood from flowing back into the smaller veins, thus helping with the normal blood flow of the body.
Given that the veins in our bodies are littered with small valves to help the blood return to the heart correctly, we can confirm that these are the small bumps that we can see when letting our hands down for a few mins, as they fill with the blood they try not to let flow back into the smaller veins.
To learn more about veins visit:
https://brainly.com/question/9726668?referrer=searchResults
C. Read the hypotheses below, and identify the
independent (what you
manipulate/change) and dependent variables (what you measure). Write
them by putting a comma in between in the space provided
12. If hatching brine shrimp is related to salinity (how salty the water is),
then the greater the salt concentration, the higher the hatching rate.
Nour answer
Answer:
Independent variable: Salinity/Salt concentration
Dependent variable: hatching rate
Explanation:
As rightly stated in this question, INDEPENDENT VARIABLE, in an experiment, is the variable that the experimenter changes or manipulates in order to bring about a measurable response while the DEPENDENT VARIABLE is the variable that the experimenter measures in an experiment. Dependent variable as the name implies is dependent on the independent variable.
In this question where an hypothesis was given as follows: "Hatching brine shrimp is related to salinity (how salty the water is), then the greater the salt concentration, the higher the hatching rate". The hypothesis relates the independent and dependent variables i.e. it tells us how the independent variable affects the dependent variable.
Hence, according to the hypothesis, it is telling us how a change in SALINITY OR SALT CONCENTRATION will affect HATCHING RATE. Therefore;
Independent variable: SALINITY/SALT CONCENTRATION
Dependent variable: HATCHING RATE