Answer:
Most likely false
Explanation:
Humans aren't exempt from population crashes, if we spent up our recourses, started wars, etc. It HAS happened before, so most likely false.
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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Select the correct answer.
Which is an advantage of sexual reproduction over asexual reproduction?
A. increased number of organisms and decreased genetic variationdecreased genetic variation
B. doesn’t require an organism to find a mate
C. increased genetic variation
D. decreased genetic variation and decreased number of organism
Answer:
C
Explanation:
the others look like the advantage of asexual reproduction
name the three dimensional shape of the dna molecule
Answer:
The double helix
Explanation:
the scientific study of all forms of life is called
Answer:
life science/biology
Explanation:
it literally says it in the name
How does this question represent the law of conservation of energy that energy cannot be created or destroyed? Consider the role of photosynthesis in your answer.
You need to put this into your own words, or else your school system will detect you copied from a source named Brainly.
Anyways, the law of conservation of energy is exactly what it says. Energy cannot be created nor destroyed. All they do is rearrange.
Now, for photosynthesis, it's an interesting thing. Photosynthesis takes the energy from the sun's light to produce sugars/carbohydrates. The sun's energy just got reused. It also uses water, which comes from the soil/ground. This simply, reuses the water. During photosynthesis, it also absorbs the carbon dioxide from the air. The carbon dioxide like everything else listed, got reused.
Meaning, energy does not leave. It endlessly works for different purposes. And as you should know, all of the water on the planet has been here since the dawn of time.
Hopefully this makes sense. Have a nice day!
Pls also put this in a graph
What effect will boiling have on an enzyme's activity?
decreased active site due to changed shape
increased active site due to changed shape
O
less substrate due to increased product formation
o
more product due to increased molecular movement
Answer:
decreased active site due to changed shape.
Explanation:
With the rising temperature, chemical bonds between molecules of enzymes break resulting to alter the standard shape of enzymes. the active site no longer fits substrate molecules and thus the effect of enzymes decreases.
what is the difference between the thermosphere and stratosphere
Answer:
Explanation:
The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high
Answer:The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high
Explanation:
which enzyme pairs corresponding nucleotides to a preexisting dna chain in order to synthesize a new strand of dna?
Answer:
✓ DNA polymerase
Explanation:
I need to connect each monomer to its polymer
HELP PLS I NEED IT RN
You are given a compound that has a melting point of 560 C. You dissolve some of the compound in water and measure the pH of the resulting solution to be 11. You are told that the compound is either KCl, Ca(OH)₂, C₆H₁₂O₆, or H₂SO₄. Which of these compounds where you give? Explain.
Answer:
Ca(OH)² I think so..........
6. The Edwards Plateau in west-central Texas is home to a diverse group of bats, reptiles,
and birds. How does the biodiversity of the Edwards Plateau affect the sustainability of local
ecosystems?
A. The variety of interactions among the different species helps the ecosystems remain
sustainable.
B. The variety of interactions among the different species prevents the ecosystems from being
sustainable.
C. The uniformity of interactions among the different species prevents the ecosystems from
being sustainable.
D. The uniformity of interactions among the different species helps the ecosystems remain
sustainable.
Answer:
A.
Explanation:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem. A great variety of genes and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable.
Hope this helps!! Brainliest?? Anyways have a great day!! :))
Segments of DNA transferred from parent to offspring are called
Answer: Genes
Explanation:
clusters of chlorophyll and accessory pigments are called ________.
Answer:
Photosystems
Explanation:
In all photosynthetic organisms studied to date, except one class of photosynthetic bacteria, light is captured by clusters of chlorophyll and accessory pigment molecules, which together are called photosystems.
Hope this helps :)
A muscle cell has a solute concentration of 2% it is in a solution of 5% solute. What will happen
to the cell?
Answer:
But now you have two mixtures of different solute concentrations. In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is hypertonic, and the solution with the lower solute concentration is hypotonic
Explanation:
hope it helps :P
The cell will shrink as the solvent from low concentration solute will move towards the high concentration solute.
What is osmosis ?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively permeable membrane from a region of high water potential to a region of low water potential, in the direction that tends to equalize the solute concentrations on the two sides.
Since the solute concentration in the muscle cell is just 2%, and the muscle cell is dipped in a solution that contains 5% solute, the solvent will flow from the muscle cell into the solution. This will result in the muscle cell becoming smaller until the concentration of solutes on both sides is equivalent.
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Which of the following equations best represents conservation of matter?
Option 1: 6H₂O + 10CO₂ -> C₆H₁₂O₆ + 4O₂
Option 2: 3H₂O + 3CO₂ -> C₆H₁₂O₆ + 6O₂
Option 3: 6H₂O + 6CO₂ -> C₃H₆O₃ + 3O₂
Option 4: 6H₂O + 6CO₂ -> C₆H₁₂O₆ + 6O₂
Answer:
4
Explanation:
How does independent assortment increase genetic variation in Meiosis?
Answer:
Independent assortment produce new combinations of alleles.
Explanation:
In meiosis I, crossing over during prophase and independent assortment during anaphase creates sets of chromosomes with new combinations of alleles. Genetic variation is also introduced by random fertilization of the gametes produced by meiosis. It results in gametes that have unique combinations of chromosomes.
Which statement describes the ability of the cell membrane to allow various substance to move through it?
The cell membrane is selectively permeable.
What kinds of point mutations alter a gene's DNA sequence?Describe each of them.
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
Why does the brain of mammals keep track of the temperature of the skin and the blood?
Answer:
The thermoregulatory center in this gland regulates heat loss and production. This center is influenced by nerve impulses from receptors near the skin and the temperature of the blood flowing through it. When the environment is warm or hot, there are a variety of ways mammals stay cool..
Explanation:
Hope it helps you..
Y-your welcome in advance..
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The brain of mammals keeps track of the temperature of the skin and the blood so that they can regulate the cells and maintain homeostasis in the body relative to the outer environment.
What is the importance of homeostasis in the body?The body's homeostasis should always be maintained in order to keep the cells and organs active and able to perform their functions. Because the brain has different control centers, it keeps track of the skin and blood temperature because the brain can release different hormones depending on the situation. The lipid composition and arrangements of the cells change in the summer and the winter, and all these are possible due to the brain sending signals to cells.
Hence, the brain of mammals keeps track of the temperature of the skin and the blood so that it can regulate the cells and maintain homeostasis in the body relative to the outer environment.
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In cell A, what structure is labeled X?
Answer:
Centrioles
În cell A, what structure is labeled X? Centrioles Which cell is in the “in between” phase of mitosis? D (Interphase, where the cell is being the cell it was created to be!) Place the diagrams in order from first to last.
Explanation:
Que avances tecnológicos ha
propiciado la química en la
actualidad
Answer:
porque contigo yo ya escoji ara mi corazon ta sufri bien simple lang iyo tapidi ela cin titu el cosayoya cinti
which statement best describes photosynthesis and respiration
Answer:
Easy
Explanation:
Photosynthesis turns carbon into oxygen, and respiration puts carbon back in the air
Pls help click to see full image worth 30 pts
4. The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?
Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Answer:
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Explanation:
The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?
Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Please don't use these answers to cheat they are for help.
The statement shows that D. Dark matter provides the gravity that allows the stars to rotate at the same speed.
According to the information given in the question, it should be noted that the stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars that are in the middle of the galaxy.
This implies that dark matter provides the gravity that allows the stars to rotate at the same speed. It should be noted that dark matter doesn't emit the light that astronomers need to see the orbital speeds of the stars.
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do predators control the prey or do the prey control the predators
the predators are wolves the prey are deer
Answer:
Explanation:the predators are predators and how they are predators is because they are predatrods
a population characteristic, such as a population mean, is called
Answer:
Parameter
Explanation:
Every Characteristic a population has is called a Parameter
What the relationship between a glucose molecule and the products it makes during cellular respiration.
Answer:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
During cellular respiration, glucose makes water, carbon dioxide, ATP, lactic acid, and ethanol. In the absence of oxygen, ethanol and lactic acid are formed from the glucose.
What is glycolysis?
Glycolysis is a process in which glucose breaks down inside a cell. Glucose makes pyruvate as an end product in this process. In the presence of oxygen, glucose breaks down into pyruvate and proceeds to the Krebs cycle. In this process, ATP, water, and carbon dioxide are released.
In the absence of oxygen, glucose is converted into lactic acid and ethanol. This is called fermentation and produces only 2 ATP from glucose. This is called anaerobic respiration.
When oxygen is present from glucose, nearly 36-38 ATP are formed. Pyruvate converts into acetyl CoA, and it enters the Krebs cycle. A complete oxidation of glucose takes place in the presence of oxygen.
Hence, in the presence of oxygen, 36-38 ATP is released from glucose, and in the absence of oxygen, lactic acid and ethanol are produced with 2 ATP.
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Question 9
Which is a negative impact of destroying the rainforests?
The Animals woud be hurt
Explanation:
The environment would be bad to be destroyed for the animals in the rainforest.