Answer:
the answer to that question is incident
Explanation:
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100 points! Answer these questions right now!
Why is ocean acidification important to us?
What will happen to the pH of the water when CO2 is added?
What does the abbreviation “pH” stand for?( briefly explain)
#1
Ocean acidification is harmful for aquatic ecosystemThis is being reason for death of many aquatic creatures#2
CO_2 will form carbonic acid which is acidic in nature
So it will decrease the pH#3
PH stands for potential of Hydrogen .
If pH is less than 7 it's acidic and if greater than 7 it's basicExplanation:
Acidification reduces the availability of carbonate ions in ocean water, which provide the building blocks these organisms need to make their shells and skeletons, significantly reducing the chances for their offspring to survive.
when carbon dioxide is dissolved in water, the release of hydrogen ions in carbonic acid is what lowers the pH. As CO2 levels increase around Earth, the amount of dissolved CO2 also increases, which increases the amount of carbonic acid, therefore decreasing the pH.
pH stands for "power of hydrogen." The "H" is capitalized because it is the hydrogen element symbol. pH is a measure of how acidic or basic an aqueous solution is. It is calculated as the negative logarithm of hydrogen ion concentration.
Help me pleaseeeeeeeeeeeeeeeeeeee
what adaptation has the stigma developed that helps with fertilization?
Answer:
Pollen is caught by the stigma and then tunnels down through the style to fertilize the ovules in the ovary.
Explanation:
The graph below shows the breakdown of radon-222.
What is the half-life of Rn-222?
What fraction of the original sample will be left after 3 half-lives?
Answer:
Answer: 7.949\ \text{days}7.949 days
Step-by-step explanation:
Given
The half-life of a sample is T_{\frac{1}{2}}=3.823\ \text{days}T
2
1 =3.823 days
Decay is given by
A=A_o2^{\dfrac{-t}{T_{\frac{1}{2}}}}A=A
o
2
T
2
1
−t
After 3 half-lives, one-eight of the sample is left
Insert the values
\begin{gathered}\Rightarrow \dfrac{A_o}{8}=A_oe^{\dfrac{-t}{T_{\frac{1}{2}}}}\\\\\Rightarrow e^{\dfrac{t}{T_{\frac{1}{2}}}}=8\\\\\text{Taking log both sides}\\\Rightarrow \dfrac{t}{T_{\frac{1}{2}}}=\ln 8\\\\\Rightarrow t=3.823\times \ln 8\\\\\Rightarrow t=7.944\ \text{days}\end{gathered}
⇒
8
A
o
=A
o
e
T
2
1
−t
⇒e
T
2
1
t
=8
Taking log both sides
⇒
T
2
1
t
=ln8
⇒t=3.823×ln8
⇒t=7.944 days
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How are dinosaurs are like ( Related) crocs
How are dinosaurs like( related) chickens
Answer (How dinosaurs are related to crocodiles):
Along with pterosaurs and dinosaurs, crocodiles were an offshoot of the archosaurs, the "ruling lizards" of the early to middle Triassic period; needless to say, the earliest dinosaurs and the earliest crocodiles resembled one another a lot more than either resembled the first pterosaurs, which also evolved from archosaurs. What distinguished the first crocodiles from the first dinosaurs was the shape and musculature of their jaws, which tended to be much more deadly, as well as their relatively splayed limbs—as opposed to the straight, "locked-in" legs of theropod dinosaurs. It was only well into the Mesozoic Era that crocodiles evolved the three main traits with which they're associated today: stubby legs, sleek, armored bodies, and marine lifestyles.
Answer (how dinosaurs are related to chickens):
The scientific evidence comes from a study in which the amino-acid sequence from T. Rex collagen was compared to that of various modern species. It proved to be more similar to the chicken than any other creature alive today.
So, are chickens dinosaurs? No – the birds are a distinct group of animals, but they descend from the dinosaurs, and it’s not too much of a twist of facts to call them modern dinosaurs.
There are many similarities between the two types of animal, largely to do with bone structure. It also appears that many of the dinosaurs had feathers – not for flight, but as adapted scales, to assist in heat regulation, and/or to assist in courtship displays, as in modern birds.
In many cities, wastewater travels through sewer lines to be processed at a wastewater-treatment plant. The treatment plant uses many methods to
break down materials in wastewater and make sure materials are safe before
release. Which of the methods used during treatment is meant to kill diseases in materials in wastewater?
A. Burying of solid waste
B. Heating of liquid waste
C. Aeration of liquid waste
D. Settling out of solid waste
Answer: (A) Burying of solid waste
Explanation: took the test!
What biotic and abiotic factors live in an oasis and what are their roles as resources?
Answer:
Precipitation, water availability, sunlight, and temperature are all abiotic factors. Deserts are characterized by their lack of rainfall. Although we usually think of deserts as being hot, some deserts can be cold too. Biotic factors are all the living things in an ecosystem. So organisms such as cacti and the kangaroo rat.
HURRY
If element X has 5 valence electrons, what will its ionic charge be?
options:
-3
+5
-5
+3
Answer:
-5
Explanation:
Here are the charges:
Neutrons= 0 (zero)
Protons= + (+1) (positive)
Electrons= - (-1) (negative)
If there are 5 electrons in the valence shell then: 5(-1) = -5
The epithelium of the nasal cavity, nasopharynx, trachea and bronchi is ciliated ___________________________________ columnar epithelium, often with goblet cells
Answer:
pseudostratified
Explanation:
The epithelium of the nasal cavity, nasopharynx, trachea and bronchi is ciliated pseudostrtisfied columnar epithelium, often with goblet cells
In a pedigree, an affected male would be designated by:.
Answer:
a shaded square
Explanation:
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In a pedigree, an affected male would be designated by a shaded square. The correct answer is option 3.
A pedigree is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next.
In a pedigree, an affected male would be designated by a shaded square. This is because squares represent males in a pedigree, and shading indicates that the individual is affected by the trait being studied. In contrast, an open square would represent an unaffected male. Similarly, a shaded circle would represent an affected female, while an open circle would represent an unaffected female.
Therefore, a pedigree would show a shaded square for an affected man. Option 3 is the right answer.
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The given question is incomplete. The complete question is:
In a pedigree, an affected male would be designated by Multiple Choice
1.an open square.
2.an open circle.
3.a shaded square
4.a square with a line through it.
5.a shaded circle
Which enzyme is produced by the salivary glands and begins the chemical digestion of carbohydrates?
Answer:
salivary enzyme amylase
Explanation:
salivary enzyme amylase begins to break down food starches into maltose.
In the past, waste from mining was
Answer:
waste rock and tailing mineral resources
9.
Which species is the most recently evolved?
3
4
H
А
Answer:
You need to put the species... I can't figure it out if there's just random numbers and letters...
Explanation:
If your small intestine was unwound how long would it be:.
Answer:
The length of the small intestine can vary between about 10 feet (3 meters) to over 16 feet (5 meters). For comparison, a standard basketball hoop is 10 feet tall. The different sections of the small intestine are also different lengths. The ileum is the longest section while the duodenum is the shortest.
Explanation:
According to healthline this is your answer :D
The addition of aldosterone _______. resulted in no change in urine volume decreased the urine volume to zero decreased the urine volume increased the urine volume
The addition of aldosterone resulted in a decrease in the urine volume and is denoted as option C.
What is Aldosterone?
This is produced in the adrenal gland and it helps to stimulate absorption of sodium by the kidneys.
It also regulates water and salt balance in the body which is why its addition leads to a decrease in the urine volume.
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The perception of color depends on the __________ of light an object reflects.
Answer:
The answer is Wavelength.
Explanation:
The perception of color depends on the Wavelength of light an object reflects.
Which of the following is an outer covering that protects the other body parts?
Brain
Eyes
Muscles
Skin
Answer:
its skin
Explanation:
skin is what covers the body parts !!
Please hurry!
What is the relationship between coronary artery disease and a heart attack?
-Coronary artery disease is a symptom of heart attacks.
-Heart attacks reduce blood flow to the heart and cause coronary artery disease.
-Coronary artery disease can reduce blood flow to the heart and cause heart attacks.
-Heart attacks occur when coronary artery disease is treated.
Answer:
Coronary artery disease can reduce blood flow to the heart and cause coronary artery disease
Explanation:
The build up of plaque leads to reduced blood flow causing chest pains, shortness of breath and other symptoms related to coronary artery disease. A complete blockage of the arteries can lead to a heart attack.
What does random mean and how does it apply to genetics?
Answer:
We
Explanation:we
Answer:
Answer: Alleles are sorted randomly into cells.
Explanation:
Define stroke volume
It's the volume of blood pumped through a vessel of the heart in one beat.
What is the difference between a mold and a cast fossil?.
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Plants, like animals and other organisms, must adapt to their changing environments. While animals are able to relocate from one place to another when environmental conditions become unfavorable, plants are unable to do the same. Plants must deal with changes in their environment in a different way. Plant tropisms are mechanisms plants use to respond to their environment. A tropism is a growth toward or away from a stimulus. Common stimuli that influence plant growth include light, gravity, water, and touch. Evaluate each of the tropisms. Select ALL of the choices that correctly pairs the type of tropism with its environmental stimulus.
A) phototropism: growth toward light
B) hydrotropism: growth in response to water
C) thigmotropism: growth in response to touch
D) geotropism: growth in response to soil conditions
E) thermotropism: growth in response to temperature
Answer:
A,B,C, and D
Explanation:
Forms of tropism include phototropism (response to light), geotropism(response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current).
I really hope that’s correct :)
what property of the atmosphere most determines whether pollutants get blown away or become trapped locally
Stability is the property of the atmosphere that most determines whether pollutants get blown away or become trapped locally.
What is a pollutant?A pollutant is any type of contaminant substance and/or material that is found in the air, water or soil.
In the air, the main pollutant is carbon monoxide, which is a highly toxic contaminant substance.
This substance (carbon monoxide) can cause serious harm to the health of humans and animals.
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How could radiation affect the growth of a human organism? And what amount of radiation would cause a human to stop growing ?
Answer :Whether the source of radiation is natural or man made whether it is a small dose of radiation or a large dose of radiation there will be some biological effects.
Explanation: radiation is a part of human body and it is natural.
Imagine you accidentally knocked a vase off a table and onto the floor. Describe the forces that would act on the vase before and during its fall!
The forces which acts on the vase before the fall include:
Force exerted by the table.Force of gravity.DragWhat is Force?This is described as an influence which changes the motion of an object. The force exerted before motion is that which is exerted by the table , drag and force of gravity.
During fall, all other forces act except that exerted by the table thereby making it the most appropriate choice.
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How did kettlewell determine if moths lived longer than others?.
Answer:
He placed light and dark moths on tree trunks where he could observe them and then he recorded the times a bird found the moth.
Explanation:
How did Kettlewell determine if moths lived longer than others? By monitoring the amount of dark and light-colored moths on the light and dark trees and seeing how many were caught by birds
Kettlewell determines if moths lived longer than others through the fact that it considerably analyzes the amount of dark and light-colored moths on the light and dark trees and observes the number of many that were caught by birds.
How did Dr. Kettlewell determine the fact?Dr. Kettlewell test his hypothesis of the evolutionary mechanism of industrial melanism, he directly studied bird predation on moths. Kettlewell placed light and dark moths on the trunks of trees from where they can be observed. Then the number of times a bird found the moth on the tree trunk was calculated.
According to the question, he recorded the times a bird found the moth. He found that on dark tree trunks, birds were twice as likely to eat a light moth as a dark moth. The same birds would find the dark moth twice as often if the bark on the tree was light.
This supported the idea that dark moths had a survival advantage in a dark forest. He placed light and dark moths on tree trunks where he could observe them and then he recorded the times a bird found the moth at a given place.
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We should NEVER keep volatile solvents, such as ether, acetone, or benzene, in an open beaker or Erlenmeyer flask because vapors can ignite and flashback if they reach a flame. All BUT ONE safety precaution is necessary when using volatile solvents. That is _____.
WILL MARK BRAINIEST
a. Work under a fume hood
b. Know how to engage the safety shower
c. Always heat in a closed container
d. Know the location of the fire extinguisher
Work under a fume hood is the safety precaution is necessary when using volatile solvents.
What is the benefit of fume hood?A fume hood is very important in order to remove toxic or hazardous materials from a work area. Due to this device, the personnel in that area are protected.
So we can conclude that work under a fume hood is the safety precaution is necessary when using volatile solvents.
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Which of the following is NOT true of
evolutionary trees?
A. They are a hierarchy of best to worst organisms.
B. They can show anatomical or molecular differences.
C. They all use different information.
D. They aren't all the same.
The statement that is not true and correct about evolutionary trees from the options is that They aren't all the same .
What are evolutionary trees?Evolutionary trees are trees that help to arrange and reconstruct the evolutionary history of species or groups of organisms belonging to either genera, families, or orders. The trees reconstruct and show case two form of information that is related to evolutionary change, cladogenesis and anagenesis.
Therefore, They aren't all the same is not true of evolutionary trees.
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Select all that apply.
The pancreas and liver _____.
a-digest food
b-secrete enzymes and bile
c-help the small intestine digest food
d-are not part of the digestive system
e-help the large intestine digest food
Answer:
b - Secrete enzymes and bile.
The pancreas secretes digestive enzymes into the small intestine, these enzymes are crucial for the digestion of proteins and polysaccharides. The liver secretes bile into the small intestine, which is necessary for the absorption of dietary fats.
What geological process formed the Himalayas
Answer:
collision
Explanation:
The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today.
Which of the following is a characteristic of unicellular organisms?
1. They can possess tissues and organs.
2. All of their functions are performed by a single cell.
3. They are usually microscopic.
4. Each of their cells is specialized to perform a specific function.