Answer:
D
Explanation:
many chemical changes can be smelled, or heard, etc. And can be seen on a molecular level. Chemical changes create new substances:
Na + Cl = NaCl
How humans have contributed to the extinction of plant or animal species?
Answer: The main cause of the extinctions is the destruction of natural habitats by human activities, such as cutting down forests and converting land into fields for farming. Due to human activities, populations of many species have become small and isolated.
Explanation:
What is the answer for this question
URGENT PLEASE:
Explain how a lack of carbohydrates will impact cellular functions and why?
Answer:
Carbohydrates they say is the major classes of food and don't forget they are stored by stach in the body and gives your body energy
Carbohydrates are degraded into sugar which, as a primary source, is required for the brain, muscles and other parts of the human body to function normally.
When you don't get enough carbohydrates, the level of sugar in your blood may drop to below the normal range (70-99 mg/dL), causing hypoglycemia.
Type your response in the box.
Explain why it's important for scientists to study the Sun. List at least two challenges researchers face when
examining Earth's nearest star.
Answer:
its very important in our day to day life
Explanation:
the sun is our closest star and there are many theorys about it that need to be proven right or wrong
Understanding the Sun will help us better understand stellar life cycles and the origins of our solar system. The cost of the equipment needed to research the Sun is prohibitive. The Earth's distance from the Sun must also be considered, as well as how equipment must resist the Sun's intense heat.
Please give brainliest.
Which of the following factors was likely the greatest
contributing factor to the 1916 influenza outbreak?
Answer\
poor sewage systems
Explanation:
funny story....i have an assignment which requires me to get questions about "tissue respiration" and submit to my teacher in the next biology lesson which is tomorrow:(( does anyone know any questions about this topic:) helpppp
Answer:
why is it called tissue respiration is a good question I guess
and why is tissue respiration important?
what happens during glycolysis?
Pollution has negative effects on plants, animals, and people. Which choice would be least likely to cause water pollution?
Answer:
plants
Explanation:
because animals can maybe poop or pee on the water .and also people are the same too.so plants are the least likely to cause water pollution
HELP PLEASE!!!explain how Earth is heated through conduction
As it's known conduction needs a medium for heat transfer and during the day, sunlight rays pass through the Earth's atmosphere and near the earth's surface is where most heat transfer by conduction occurs since air is a poor conductor. Thus, the sunlight hits the earth's surface(ground) and in turn heats the air above it and transfering the heat.
It must be known that conduction happens mostly near the earth's surface.
Answer:
Conduction is one of the ways that energy is transferred from the earth's atmosphere to the air. Conduction is the process by which heat energy is transmitted through collisions between neighboring molecules. Think of a frying pan set over an open camp stove.
Explanation:
Which statement describes an effect of economic dominance on society?
A.
Economic dominance encourages education systems to impart moral values to people.
B.
Economic dominance allows people to spend more time with their families.
C.
Economic dominance causes education systems to channel their efforts into imparting skills for the job market.
D.
Economic dominance has led the government to mold its working methods to increase costs.
What is the purpose of technology?
A. Creating political pressure
B. Finding new scientific discoveries
C. Solving problems
D. Regulating the government
The purpose of technology is to solve problems and improve various aspects of human life. Option C.
The purpose of technology is multifaceted and encompasses various objectives.
However, at its core, technology is developed to address challenges, solve problems, and enhance different facets of human existence. Whether it is improving efficiency, increasing productivity, advancing communication, or creating innovative solutions, technology aims to provide practical and tangible benefits.
Technological advancements enable us to overcome obstacles and improve the quality of life.
From medical technologies that diagnose and treat diseases to renewable energy sources that combat climate change, technology plays a pivotal role in finding solutions to complex problems. It empowers us to tackle issues in areas such as healthcare, transportation, agriculture, education, and environmental sustainability.
Furthermore, technology drives scientific discoveries and innovation. It provides scientists with tools and methodologies to conduct research, gather data, and analyze information, leading to new insights and understandings of the world.
Technological advancements in fields like computing, artificial intelligence, and genetic engineering have opened up new frontiers for exploration and scientific breakthroughs.
While technology can be used for political advocacy, social mobilization, and improving governance processes, these are additional applications rather than its fundamental purpose.
The primary aim of technology is to address challenges, solve problems, and enhance human experiences in various domains. It serves as a catalyst for progress and development, shaping the way we live, work, communicate, and interact with the world around us. SO Option C is correct.
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Atoms with full valence electron shells are chemically stable. Most noble gases have eight valence electrons. So, one model for chemical bonding is the octet rule. This states that atoms will _________ or __________ electrons in order to reach the more stable arrangement of eight electrons in their valence shells. A) lose, gain B) conduct, share C) transfer, share D) conduct, transfer
Answer:
A - Gain or Lose
Explanation:
Atoms with full valency electron shell are usually very stable. Most noble gases with full valency shell are usually very stable . The valency electron are fully occupied(8) for all noble gases this is what makes them hard to react with other element.
During chemical bonding elements strife to attain the octet rule. The octet rule is to have a full valency electron through bonding . When this atom bond they either transfer electron or share electrons.
The case of transferring electrons forms an ionic bonding. One atom gain electrons while the other lose electrons during ionic bonding. One atom form cation while the other forms anions.
For covalent bonding atoms are shared to attain the octet rule. This kind of bonding exist between a non metal and another non metals
Answer:
Explanation:A: gain or lose
aproximately how many HeLa cells are there?
Over the course of 26 years, 600,000,000 HeLa cells have been produced in my laboratory each week, for a total of 800 billion cells. That is a lot of cells, but it's nothing compared with the total number of cells – approximately 100 trillion – that make up a human.
PLEASE HELP WITH THIS ONE QUESTION
Answer:
one negative one positive feedback loop
Which term best completes the following analogy?
Elements : Atoms: Covalent compounds: _________
A. Bonds
B. lons
C. Mixtures
D. Molecules
Answer:
C. Molecules
The best term that completes the analogy is Molecules
What is the value of a transitional fossil?
Transitional forms show the evolutionary steps between species.
Transitional forms are analogous fossils.
Transitional forms discredit the theory of evolution.
Transitional forms are proof of punctuated equilibrium in evolution.
The value of a transitional fossil is that its forms are analogous fossils.
What is Transitional fossil?These are fossilized remains of organisms which exhibits traits common to
both an ancestral group and its derived descendant group.
Analogous fossils possess similar structures and functions but evolved
differently thereby making the transitional form the same as it being
analogous.
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Answer:
A
Explanation:
On Edge2022 :)
Imagine you have been shipwrecked and are floating on a small piece of wood in the middle of the ocean. You are terribly thirsty and take a drink of seawater (3.5% salt). What do you think happens to your stomach cells (1% salt), and why?
Given the higher salinity of the ocean water in comparison to your stomach cells, you will lose water from your cells and become dehydrated.
Osmosis is a phenomenon that shows that in the presence of a space in which the solute concentration is higher than its current location, water will travel towards that more concentrated space in an attempt to dilute the concentration.
The urge to drink is what we call being thirsty. This urge has a biological origin. It is the body's way of telling you that your cells need more water, which leads us to often consume any water we have available. This is not always in our best interest.
However, due to osmosis, drinking the seawater would only have a negative effect on your stomach cells. As stated in the question, the cells contain less concentration of solute (in this case salt) than the water. This means that instead of entering the cell, water would leave to dilute the new seawater, thus dehydrating you more and worsening your condition.
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Which of the following is the observed result of aquatic species exposed to a toxin?
I. Developmental dysfunction
II. Gender imbalances
III. Increased reproduction rates
I, II, and III
I and II
II and III
I only
The release of toxins such as heavy metals into the water bodies has been deeply frowned at .This is because toxins usually have a negative effect on aquatic species. The negative effects include:
Developmental dysfunctionGender imbalancesToxins also gives rise to developmental dysfunction in the animals . The toxins ensures that there is a shortage by interfering/reacting with the nutrient needed for the growth of these organisms.
The issue of gender imbalance is also true as some toxins causes water bodies to be warmer which favors the presence of female aquatic species such as reef fish.
Toxins causes aquatic bodies to be short of oxygen supply as the elements or compounds released vie for oxygen with the animals which may lead to less reproduction rates and death in severe occasions.
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A person jogging from the forest to the office covers the 6,800
meters in 2 hours. Their speed is not constant and they slow down
and speed up at various times. What is their average velocity?
Round the answer to the hundredths place if necessary.
a 1.9 m/s north
b. Impossible to calculate since the speed wasn't constant.
C. 0.9420/s north
d. 56.67 m/s north
e. 1.34 m/s north
f. 0.56 m/s north
Answer:
b
Explanation:
Please help! will mark brainlist!!!
Which object is hotter in terms of its kinetic energy: the cup of coffee or the iceberg? Explain the reason for your answer in terms of your understanding of the kinetic molecular theory of matter.
Answer:
red-hot iron bar
Explanation:
An iceberg could even contain more heat energy than a cup of coffee or a red-hot iron bar. That's because its bigger and contains so many more molecules, each of which has some heat energy. The coffee and the iron bar are hotter (have a higher temperature), but the iceberg holds more heat because it's bigger.
Question of the day, who ever answers it first gets brainliest:
Do animals have a cell wall?
Answer:
yes they do
Explanation:
Answer:
No, animals do not have a cell wall!⊂(･ω･*⊂)
Primary productivity is not limited by _______.
a.
the availability of sunlight
b.
time
c.
the availability of nutrients
d.
access to water
Please select the best answer from the choices provided
A
B
C
D
Prokaryotic cells lack which of the following?
Answer:
Prokaryotic cells lack a nucleus and other organelles
Explanation:
Chamges in blood are automatically and routinely made by the body In order to direct appropriate amounts of________and________to specific parts of the body?
Help Asap!!
Answer:
What is Oxygen & Nutrients
Explanation:
Changes in blood are automatically and routinely made by the body In order to direct appropriate amounts of OXYGEN and NUTRIENTS to specific parts of the body.
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Use the periodic table from the lesson to answer the following question.
The atomic mass of F is.
9
10
19
55
Answer:
19
Explanation:
Fluorine's atomic mass is 18.99 which rounds up to 19 which is on your selection of choices.
Which of following is found in the Terai region?
i. Langtang national park
ii. Khaptad national park
iii. Makalu Barun national park
iv. Bardia national park Garnment and
Answer:
1.is the answer to the question
Mark me as brainlestWhat is procedural memory?
To best display the distribution of sex (male, female, other), we could use:
Answer:
i guess it's gender
hope this helps
Hi! Does anyone know the answer to this question? Will mark brainliest!
What is shown in this illustration?
A. continental-continental convergence boundary
B. oceanic-oceanic convergence boundary
C. oceanic-continental convergence boundary
D. hot spot
Answer:I promise you it is hot spot
Explanation:
Using ___ is one way of planting where a seed is allowed to germinate in box or boxes before planting the soil.
Answer:
Plantig seeds
Explanation:
N.) Effects of human Intervention of the nitrogen cycle-