Answer:
Crushing them
Explanation:
explain a situation where someone could use ph test kits in your neighborhood
Answer:
TO TEST SUPPLY OF WATER QUALITY OF THE LOCALITY Excessively high and low pHs can be detrimental for the use of water. High pH causes a bitter taste, and water pipes.
Alkaline water turns red litmus paper blue. Acidic water turns blue litmus paper crimson. Pure or neutral water won't modify the litmus paper's color.Therefore, it can be used to test the quality of the drinking water.
What is pH?
A quantity that expresses the degree to which a substance or solution is acidic or basic. On a scale that ranges from 0 to 14, pH is measured. A pH value of 7 is considered neutral on this scale, which indicates that the substance in question is neither acidic nor basic. If the pH value is lower than 7, the substance in question is more acidic, and if the pH value is higher than 7, it indicates that the substance in question is more basic.
It is recommended that you consume water that is neither overly acidic nor overly alkaline, as well as water that is both clean and pure. The Environmental Protection Agency of the United States suggests that the pH level of drinking water should fall somewhere in the range of 6.5 to 8.5. The pH reading of the vast majority of ground and surface water should fall somewhere within this range.
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1. Label the following parts of the DNA molecule:
A.
B.
C.
D.
E.
2. Answer the following questions:
A. How many molecules make up a nucleotide?
B. What two molecules make up the sides of a DNA
molecule?
C. What type of sugar does DNA contain?
newer questions 3 -
Answer:
1)
A- nitrogenous base
B- hydrogen bond
C- pentose sugar
D- phosphate group
E- nucleotide
2)
A- 3 molecules
B- phosphate group and pentose sugar
C- deoxyribose sugar
Which of the following statements are NOT true of micronutrients? a) They help regulate body processes.
b) They provide energy.
c) They help in the growth and maintenance of the body.
d) They are required in small amounts
Answer:
C
Explanation:
its easy
b)They provide energy statements are NOT true of micro nutrients
Do micronutrients control bodily functions?
Every single micronutrient is crucial for the health of your body's systems. Getting enough of the various vitamins and minerals is essential for good health and could even aid in the prevention of disease.
This is due to the fact that micronutrients are involved in almost every bodily process.
One of the most important vitamin categories that your body need are micronutrients. They contain minerals and vitamins. The creation of energy, immune system health, blood coagulation, and other processes all depend on vitamins.
In the meanwhile, minerals are crucial for a number of functions, including growth, bone health, fluid balance, and others.
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help asap!!! will give brainliest!!!!
Answer: i beleive its A the first one i did this a few weeks ago
Answer:
Less ATP is generated during anaerobic respiration than during aerobic respiration
how do cells get the correct number of chromosomes?
Answer:
"During cell division, a mother cell divides into two daughter cells, and during this process, the DNA in the mother cell, wrapped up in the form of chromosomes, is divided into two equal sets. ... This finding gives us a glimpse of an important step in the process of cell division."
Explanation:
How are a hypothesis and a theory similar?
Answer:
A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors.
- If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be?
Answer:
If 0.9% NaCl were isotonic to a cell then anything greater than 0.9% would be hypertonic. A hypertonic solution is one which has a greater concentration of dissolved solutes while an isotonic one has a similar concentration of solutes.
Explanation:
If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
What is a Hypertonic solution?A hypertonic solution may be defined as a type of solution that significantly has lower osmotic pressure than another solution to which it is compared. If the surrounding solution has a higher solute concentration compared to inside the cell, it represents a hypertonic solution.
According to the context of this question, if a 0.9 % salt solution is isotonic to an animal cell, then anything greater than 0.9% would be hypertonic. So, all the options except for 1.0% are lesser than or equal to 0.9%.
Therefore, if a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
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fill in the venn diagram below with the following terms:exocytosis,diffusion,endocytosis,osmosis
Answer:
there more tissues or more organs in your body explain your reasoning
Explanation:
Each organ is made up of several different types of tissue. Therefore, for every organ in the body, there are many more tissues.
Answer: Venn diagram of exocytosis , diffusion , endocytosis , osmosis is
described below.
Explanation:
Exocytosis: refers to the process by which the contents of a cell are released to the exterior environment through fusion of the vacuole membrane with the cell membrane.
Endocytosis: refers to the process in which cells take the material from outside the cell by taking in the vesicle. These materials serve as nutrients and pathogens which help cell to fight against foreign diseases.
The common thing these two process have among them is
FlagellaPlasma MembraneCell divisionCytoplasmRibosomes chromosomesDiffusion: It is the process of movement of molecules from through a
semipermeable membrane from the region of higher concentration to lower concentration.
Osmosis: The movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's fractionally permeable membrane.
The common thing these two process have among them is that equalizes the concentration of two solutions in mixture
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true or false? mitosis takes place during m phase, which is the longest phase of the cell cycle.
Answer:
False
Explanation:
Mitosis takes place during M phase of the cell cycle, which is longer than interphase. False. Although mitosis takes place in M phase, M phase is shorter than interphase; cells spend most of their time in interphase.
how are saturated and unsaturated fatty acids different
Answer:
They are distinct because saturated fatty acids have hydrocarbon chains connected by single bonds solely. Unsaturated fatty acids have one or more double bonds. Each double bond may be in a cis or trans configeration.
Explanation:
what is excretion meaning
Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.
In simple terms, the process of eliminating or expelling waste matter.
hope this helps have a great day and please do tag me brainliest if you are satisfied with the answer
Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.
how tall are penguins? explain in two sentences how tall they are and how much they weigh
Answer:
Emperor penguin: 1.1 – 1.3 m
Little penguin: 30 – 35 cm
Galapagos penguin: 49 – 53 cm
Explanation:
which are the catalysts of reactions in living things
diffusion and osmosis are examples of __ transport.
Question 47 (2 points)
A planet is at equal distance from two stars, Star 1 and Star 2. If both stars have the same mass, (2 points)
a
they will not pull each other with a gravitational force
ооо
Ob
they will pull the planet with equal gravitational force
Ос
Star 1 will pull the planet with a greater gravitational force than Star 2
Od
Star 2 will pull the planet with a greater gravitational force than Star 1
Answer:
b
Explanation:
They will pull the planet with equal gravitational force
How are organisms classified into subgroups?
the average life span of an erythrocyte in the circulation is
approximately 115 days
Human red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 115 days.
5. Design an experiment that
determines the symbiotic relation-
ship between a sloth, which is a
slow-moving mammal, and a species
of green algae that lives in the
sloth's fur.
Explanation: this experiment is long term which means patience is compulsory. you need to have a wild sloth and a domesticated sloth adopted right at their birth (he should be in a controlled environment that mimics the wild). your domesticated sloth shouldn't have the algae. at their middle age, you should compare them with them from every aspect.
Problem: How do the levels of reproductive hormones influence the human menstrual cycle?
You'll be needing a graph paper and the data below because I don't know how to screen shot with computer and used this link as the image and please give me correct graphing and results please finish it all and Ill give brainiest and 30 points.
Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
what are three functions that lipids serve in plants and/or animals?
Answer:
Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
How are a potato, a bacterium, and a human alike?
O They are prokaryotes.
o They are all made of cells,
O They are all eukaryotes,
O They all live in soil,
1
2
3
Please I need help
Answer:
All made of cells →
Explanation:
The potato, bacteria and a human is alike in the way that they all are made up of cells. The correct option is B.
What is a cell?Cells are the fundamental cornerstones of all life. Gazillions of cells make up the human body.
They support the body's framework, absorb nutrients from food, convert those calories into energy, and perform specialized functions.
The cell, first discovered by Robert Hooke in 1665, has a rich and interesting history that has led to many of today's scientific advances.
Cell theory is a biological theory first proposed in the mid-nineteenth century that states that living organisms are made up of cells, that cells are the basic structural/organizational unit of all organisms, and that all cells originate from pre-existing cells.
Thus, the correct option is B.
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what are the names of the membranes that cover the brain and spinal cord
the area of the brain stem that is important in controlling breathing is the:
Answer:
Medulla.
Explanation:
The primary role of the medulla is regulating our involuntary functions that keeps us alive such as breathing, swallowing and heart rate. As part of the brain stem, it also helps transfer neural messages to and from the brain and spinal cord. It is located at the junction of the spinal cord and brain.
Hope this helps!! Brainliest?? Anyways have a great day!! :))
The respiratory center is medulla oblongata. It is involved in minute to minute control breathing.
What parts are involved in the brain stem ?
Brain stem is made up of pons and the medulla oblongata.
The apneustic and the pnuemotaxic centers of pons work together to just control rate of the breathing. In that the medulla just sends the signals to muscles that just initiate the inspiration and the expiration and just controls the nonrespiratory in the air movement of the reflexes like coughing and sneezing.
The cerebellum is well known to just be the part of neuronal circuitry that is just activated in the respiratory challenges that are such as the hunger for the air but are not been made to be involved in control of the spontaneous and the unobstructed breathing .
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True or False: The pulmonary circuit allows deoxygenated blood to become oxygenated.
Answer:
true
Explanation:
trust me bro ya know whole lotta quick mafs
The biotic factors of the North American ecosystem that influence lodgepole pine populations are
A.
fire, pine beetles and fungus
B.
clear cutting by lumber companies and -25 oC winter temperatures
C.
the mountain pine beetle parasite and fungus
D.
warm dry summers and cold wet winters
Answer:
B
Explanation:
im pretty sure
The descriptions below explain two ways that water is used by plants on a sunny day.
I. In a process called transpiration, some liquid water in leaves changes to water vapor. The water vapor is released into the air through tiny pores in the leaves. This allows more liquid water from the soil to be pulled up the roots and stem to replace water lost from the leaves.
II. Plants use some of this water in leaves in a process called photosynthesis. During photosynthesis, water and carbon dioxide break apart and recombine to form two new substances, oxygen, and glucose.
Based on the above description of transpiration and photosynthesis, which type of change happens to water during each process?
A. In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.
B. In transpiration, because some of its properties change, water undergoes a chemical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a physical change.
C. In transpiration, because its physical properties change, water undergoes a physical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a chemical change.
D. In transpiration, because its chemical properties change, water undergoes a chemical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a physical change.
Answer:
I thinks its A but not 100%
Explanation:
True or False: Immediate treatment is always necessary for those who have an arrhythmia.
*F
Answer:
False
Explanation:
Some heart arrhythmias do not need treatment. Heart arrhythmia treatment is usually only needed if the irregular heartbeat is causing significant symptoms, or if the condition is putting you at risk of more-serious heart problems.
Answer:
false
Explanation:
Answer this please
fastest answer gets brainliest!!
Answer:
CO2 comes from air, gases, and burning.
H2O comes from the air and rain or someone watering the plant
Energy for the plant to grow
Explanation:
Please help
2. What does the mitochondria do in cells?
Answer:
The Mitochondria is where aerobic cellular respiration takes place or it is the site of ATP production.
Nitrogen is used for the synthesis of plant proteins and other compounds True / False
Answer:
True
Explanation:
Its true because nitrogen is required for production of chlorophyll, nucleic acids, and enzymes. Nitrogen is essential for plants to synthesize amino acids, which are the building blocks for protein synthesis.