Answer:
Mechanisms are activated where it is sought to lower the amount of free protons in the blood, that is, to reduce acidity, these mechanisms work between two large systems, the receptor system, the respiratory system and the renal system.
Explanation:
When a metabolic acidosis is entered, either by a food, or by a disease or even an intense physical activity, the lungs seek to generate hyperventilation, to increase the concentrations of oxygen in plasma and absolutely decrease the carbon dioxide concentration, thus not the blood becomes even more acidic.
On the other hand, the digestive system together with the sensory system, will warn this proprioception of the acidity of the plasma and will promote the dilution of these acids with a solvent, which is water, promoting the sensation of thirst.
Finally, the kidneys will seek to retain all the alkaline solutes to neutralize the physiological internal pH, and will release through the urine and the channels of acidic compounds, the products or acid metabolites to the external environment, that is, acid urine excretion.
The grand Canyon was made by _____?
A. acid rain
B. a river
C. a glacier
D. blowing wind
Answer:
B
Explanation:
Erosion from a river over a very long period of time made the Grand Canyon.
In the rat, the allele for red eye colour is dominant over the alleles for brown colour. Consider a cross between a rat that is an Hozygote dominant for eye colour and a rat that is an Hozygote recessive for eye colour.
1. Show the parental genetic cross between the two rats.
2. Use a Punnett square to show the F1 (filial generation).
3. Indicate the genotype and phenotype of the F1 generation.
4. With the results of the F1 generation, construct a Punnett square showing the results of an F2 (generation).
5. Indicate the genotype and phenotype of the F2 generation
Answer:
1) RR x rr
2) Shown below
3) 100% Rr with red eyes
4) Punnett square shown (Rr x Rr)
5) 25% of the offspring are h0m0zygous dominant with red eyes (RR), 50% are heterozygous with red eyes (Rr), and 25% are h0m0zygous with brown eyes (rr)
Explanation:
Let's say the allele for red eyes is R and the allele for brown eyes is r.
1. A cross between a h0m0zygous dominant (two copies of the dominant allele, R) and h0m0zygous recessive (two copies of the recessive allele, r) is: RR x rr
2. R R
r Rr Rr
r Rr Rr
The F1 generation is shown in the Punnett square above.
3. The F1 generation are 100% Rr. They are heterozygous. Since red (R) is dominant, the rats all have red eyes
4. A cross between the F1 generation (Rr x Rr) gives the F2 generation
R r
R RR Rr
r Rr rr
5. 25% of the offspring are h0m0zygous dominant with red eyes (RR), 50% are heterozygous with red eyes (Rr), and 25% are h0m0zygous with brown eyes (rr)
Describe nondisjunction and the effect it can have on a human.
Answer: Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during mitosis or meiosis. During mitosis, this can cause cancer. During meiosis, this can cause Down syndrome, Turner's syndrome, and Klinefelter's syndrome.
Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He measured the mass of his reactant materials to be 35g. The reaction resulted in the production of salt and water. He reported that his products weighed 32g. Which best describes the results of Franklin’s experiment? No error occurred, some of the products are always lost as heat. An error occurred, the mass of the reactants should equal the mass of the products. An error occurred, the products should weigh more than the reactants. No error occurred, water is not weighed when determining the weight of the products.
Answer:
B) an error occurred, the mass of the reactants should equal the mass of the products.
Explanation:
The answer choices are:
A) no error occurred, some of the products are always lost as heat.
B) an error occurred, the mass of the reactants should equal the mass of the products.
C) an error occurred, the products should weigh more than the reactants.
D) no error occurred, water is not weighed when determining the weight of the products.
Solution
The basis to answer this question is the law of conservation of mass.
Any chemical reaction satisfies the law of conservation of mass: mass cannot be either created nor destroyed, so, always, the mass of the reactants equal the mass of the products.
Thus, since he measured the mass of his reactant materials to be 35g and he reported that his products weighed 32g, his data are in clear contradiction of the law of conservation of mass. So, there is an error in his results: the mass of the reactants should equal the mass of the products.
Answer:
B
Explanation:
The electrons are outside the nucleus and have a negative charge?
Answer:
Correct!
Explanation:
If a dog had 72 chromosomes, how many daughter cells will be created during a single cell cycle
Answer:
144
Explanation:
they divide, so double it :)
The San Marcos salamander, Eurycea nana, is a light reddish-brown
translucent salamander about 2-5 cm in length. E. nana is found only in
Spring Lake and a portion of the San Marcos River.
Which human activity would most likely decrease the ability of the
salamanders to survive?
The addition of a new food source into the river that limits competition for
resources
Tourism that helps fund the educational programs related to river ecosystem
conservation
Public transportation that reduces the number of automobiles that contribute to
pollution runoff into the river
Increasing water consumption that decreases the flow of clean water from the
springs that feed the river
Answer: Increasing water consumption that decreases the flow of clean water from the
springs that feed the river
Explanation: Because the salamanders have less clean water, pollution becomes more of a problem, also all of the other options would help the salamanders.
The human activity that would most likely decrease the ability of the salamanders to survive is increasing water consumption, which decreases the flow of clean water from the springs that feed the river, which is the last option.
What are the human activities that lead to habitat loss?The salamander is only found in a limited area of the San Marcos River, which relies on clean water from the springs, so decreasing the flow of clean water would negatively impact the salamander's survival, as it depends on specific water conditions for survival. As water is withdrawn from the springs to meet human needs, such as agriculture, industry, or household use, less water is available, which can have a detrimental effect on the habitat that the salamander requires because of human needs.
Hence, increasing water consumption decreases the flow of clean water from the springs that feed the river, so the last option is the correct option.
Learn more about the human activities that lead to habitat loss here.
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In mitosis, the second stage of the cell cycle, the cell's nucleus divides into two new ___________________________________.
A daughter cells
B golgi bodies
C nuclei
D cell walls
Answer:
Daughter cells.
Explanation:
How do we use time in the real world? Give me one idea and illustration it down below please
Answer:
if you need to know what time to wake up or to get ready for work/ school then u need a certain time so ur not late for it
Which of these is a eukaryotic plant cell?
(A) Human liver cell
(B) E.coli bacteria cell
(C) Horse hair cell
(D)Carrot root cell
Answer:
Its D
Explanation:
Between these selections just carrot is a plant.
A euckaryotic cell is a cell that has a nucleus with membrane.
In the root for example we have paranshime cell
Which has one nucleus with membrane so this is the answer.
Hope you understand
Active transport moves molecules_____their concentration gradient
what is the role of a catalyst?
Answer:
Catalysts make such a breaking and rebuilding happen more efficiently. They do this by lowering the activation energy for the chemical reaction. Activation energy is the amount of energy needed to allow the chemical reaction to occur. The catalyst just changes the path to the new chemical partnership
Explanation:
Which of the following physical changes would likely help a plant adapt to living in an area with little rainfall?
A.
large thin leaves
B.
thin bark
C.
large stomata
D.
deep taproot
Answer:
C.
deep taproot
Explanation:
study island answer
Answer:
D. deep taproot
Explanation:
Just answered this question
What are sensory organs and what type of stimuli do these receptors respond to?
Answer:
Heart,Brain,Stomach,Intestines ,Lungs
Explanation:
lets say if ur low on blood your heart would automatically start pumping blood to replace the missing blood
Name THREE ways Earth’s oceans affect your life.
The ocean is good for animals, animals need the water and animals help the water in some type of way. And half of the people including me loves sea animals, so without the ocean, there will be no sea animals.
And the ocean is good because it produces oxygen and carbon dioxide.
Three ways by which Earth's ocean affects your life are it supplies freshwater (most rain comes from the ocean) and nearly all of Earth's oxygen. The ocean moderates the Earth's climate influences our weather and impacts human health.
What are the oceans' effects?It offers food, medications, minerals, and sources of renewable energy. Fishing, seafood, pleasure, and science are all supported by it. Our ocean is the first "super-highway," connecting economies and moving people and things around the world.
Animals benefit from the ocean, as they both need and contribute to the water in some form. And since I am one of the people that like sea life, there wouldn't be any sea life without the ocean.
Therefore, additionally, the ocean is beneficial since it emits carbon dioxide and oxygen.
To learn more about oceans' effects, refer to the link:
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ALL elements that make up glucose can be rearranged to make carbohydrates, proteins AND lipids.
True or False
Glucose is a simple sugar made up of 6 carbon, 6 oxygen and 12 hydrogen atom. It is an aldohexose because of the presence of the aldehyde group. It is the most abundant monosaccharide sugar.
The given statement is:
False.
The explanation for this is:
Carbohydrate is a molecule of biological importance and is made up of carbon, hydrogen and oxygen atoms. Hence, the elements of glucose can be rearranged to make carbohydrates.Similarly, lipids are insoluble bio compounds made up of carbon, oxygen and hydrogen.Proteins are molecules that are very crucial for cell functioning and structure. They are composed of carbon, hydrogen, oxygen and nitrogen mainly sometimes they even have sulfur or phosphorus in them.Therefore, the elements of glucose cannot be rearranged to carbohydrates, lipids and proteins.
To learn more about lipids and proteins refer to link given below:
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Which of the following is an example of biotechnology?
Answer:
observing migration patterns of whales genetically modifying soybeans to be resistant to insects building an instrument to view microscopic organisms sorting organisms into different categories.
Explanation:
Please answer asap
Which of the following is an example of physical weathering?
Acid rain reacting with rocks.
Animals burrowing in the ground which causes rocks to become exposed and then weathered away by other elements like wind.
Plants that produce acid and slowly wear the rocks down.
Rocks that contain iron and react with oxygen and water which causes rocks to turn a red color.
What should be my key concept for How much salt will it take to make an egg float.
The density of the average egg will be slightly greater than that of water, so it will sink. To make the egg float, we have to make the water more dense by adding salt. For 1 cup of water, adding 3 tbsp. of salt should be about enough to make the egg float.
distinguish these terms
taxonomy and phylogeny
Answer:
Taxonomy is the science/study of classification. Phylogeny is the science/study of evolutionary relationships between organisms.
Answer:
Taxonomy is the study of classification. Phylogeny is the study of relationships between organisms
Which statement best describes how the Great Rift Valley in Africa formed?
The rift valley formed when the crust pulled apart.
The rift valley formed due to subduction.
The rift valley formed similarly to an island arc.
The rift valley formed at a convergent boundary.
Answer:
The rift valley formed when the crust pulled apart.
Explanation:
The Great Rift Valley in Africa formed when the crust pulled apart along a divergent margin.
Rift valley systems are produced within a continent at divergent margins within a plate. The rifting system makes the earth in that region prone to frequent earthquakes as the continents continues pulling apart. It results from the divergence of the Arabian plate and the Somalia/Nubian plate. It is one of the longest rift valley systems on earth.Answer: a. The rift valley formed when the crust pulled apart
Matter and Chemical Formula
Let us learn about
Atoms and molecules
Element, compound and mixture
Chemical symbol and chemical formula
Atomicity and valency
Answer:
Atoms are the basic units comprising matter, and interact in a variety of ways.
Explanation
The most fundamental unit of matter that makes up elements is called atoms. Atoms comprise nucleus-orbiting electrons- while protons and nuetrons make up a stable nuclues. Here, the neutrons are uncharged, while the negatively charged electrons are attracted to the positively charged protons at the atom's center
The number of protons the atom determines its atomic number, and the sum of protons and neutrons determine the atomic mass.
Elements in the periodic table, are typically represented by chemical symbols- abbreviations of their atomic name. They are arranged in order of valency- atoms in the same group typically have the same number f electrons on their valence shells, and thus their physical properties behave similarly (conductivity, melting points, boiling points).
Valence electrons, on outer valence shells, also influence bonding. The atoms donate, accept or share valence electrons in order to achieve more stable atoms. Bonding between elements form molecules, that may interact with molecules to form compounds.
what’s the bmi???????
Answer:
Body Mass Index?
Explanation:
Answer:
BMI is your Body Mass Index.
Explanation:
The formula given is how to calculate it. Simply insert your weight and divide it by your height. Then, multiply it by 703. I highly recommend using a BMI calculator.
Dose any one wanna like make a go og le hangout?
if not than thats fine..
Answer:
I can talk but I'm also in class soooo
Explanation:
PLEASE HELP ME i will mark you brainless
Answer:
1. devloped
2. highest- USA lowest- austrailia
3. cause devloped contries have more tech and machinces that create carbon dioxide (like cars)
4. im not sure but one reason could be they are super eco-friendly and they dont have/use as many cars
ASAP!! DESCRIBE WHAT IS FOUND IN THE NUCLEUS OF THE CELL?!!
Explanation:
The semifluid matrix found inside the nucleus is called nucleoplasm.
DNA
RNA
Nucleolus
Chromosomes
Nucleoplasm
Describe a real-world situation in which the plant might
have too much H,0 or Co, but not enough to carry out
photosynthesis.
Which term describes molten rock beneath the earth's surface?
Answer:
Magma
Explanation:
1. W pewnym małżeństwie zarówno mężczyzna, jak i kobieta mają grupę krwi AB. Podaj genotyp mężczyzny i kobiety, a następnie określ, jakie grupy krwi mogą mieć dzieci tej pary. W tym celu uzupełnij krzyżówkę genetyczną: Genotyp kobiety: Genotyp mężczyzny: Krzyżówka: K- kobieta - pionowo, M – mężczyzna- poziomo
Answer:
A, B and AB blood groups.
Explanation:
If both a man and a woman have the blood type AB, the couple's children have A, B and AB blood groups. the reason behind these types of blood groups are the similar blood group of both male and female. According to blood type chart, a male with AB blood group married with female with the same blood group AB, it will never produce O blood group only A, B and AB blood groups.
what are some potential consequences of the widespread use of plastic materials
Answer:
Consequences of the widespread use of plastic materials can be an increase in levels pollution and the overflowing of landfills because most plastics are non-biodegradable and can take a very long time to disappear unlike things like paper which are biodegradable.