Osmosis: Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. ... Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration.
Long before the structure of DNA was solved, the physicist Erwin Schrodinger suggested that the three-dimensional arrangement in some polymer had to explain the two main properties of heredity: 1) the stability of life, such that traits were passed faithfully from generation to generation, and 2) the mutability of life, such that traits could change. How did Watson and Crick’s structure explain those two properties?
Watson and Crick's model explained mutability because bases pairs can suffer changes (mutations) during DNA replication. Moreover, this model also explained stability because DNA strands are held together by hydrogen bonds.
Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long chains of four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Guanine, Cytosine and Thymine.
In Watson and Crick's model, both DNA strands are held together by hydrogen bonds between nitrogenous bases on opposite DNA strands, thereby providing stability to the DNA molecule.
In DNA, Guanine always pairs with Cytosine by three hydrogen bonds, while Adenine always pairs with Thymine by two hydrogen bonds.
Moreover, Watson and Crick suggested that mutations could occur as a consequence of a base occurring very infrequently in one of the less likely tautomeric forms during DNA replication, thereby also explaining the mutability of life.
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Which of the following molecules includes all the other types on the list?
A) disaccharide B) polysaccharide C) starch D) carbohydrate
Answer:
D) carbohydrate
Explanation:
The other answer choices are fall into the category of carbs
Which is the difference between monocots and dicots?
A.
How leaves are grouped on the stalk.
B.
Whether there are two genders or only one.
C.
Whether the stem divides or grows straight up.
D.
How the vascular tunnels are grouped.
Answer:
D
Explanation:
Answer:
A. The difference between monocotyledons and dicotyledons differ in their roots, stem, leaves, flowers, and seeds
B. there are two gender which is male and female
C. stems, whether above or below ground, are characterized by the presence of nodes and internodes (Figure 1). Nodes are points of attachment for leaves, aerial roots, and flowers. The stem region between two nodes is called an internode
D. Vascular tunnel creation to improve the efficacy of decompressive craniotomy in post-traumatic cerebral edema and ischemic stroke
What is the difference between obtaining molecules from food and air in a water bear from obtaining the same by a human body? (need 3 sentences) who knows, please help
Answer:
Tardigrades need oxygen like every other animal on Earth, but it can only 'breathe' oxygen from the water around it. Take it out of its aquatic environment and it can no longer breathe or do much of anything else except dry itself out.What path does pollen need to travel for the plant to reproduce?
A
from the pistil to the stamen
B
from the stamen to the pistil
с
from the pistil to the petal
D
from the stamen to the petal
Why is the myelin sheath so important for sending signals throughout our body
Answer:
Myelin can greatly increase the speed of electrical impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. Myelin damage causes several neurological diseases, such as multiple sclerosis.
Explanation:
this is the correct answer happy
Which method of timber harvesting removes all trees from the harvest area?
What happens to sister chromatids during mitosis
During cell division, each chromatid will separate and dwall inside one of the to daughter cells.
Which of these items are made of cells? Check all that apply/
air
bacteria
horses
humans
mushrooms
rocks
water
Answer: everything but air, rocks, and water are made up of cells
Explanation:
Answer:
bacteria
horses
humans
mushrooms
Explanation:
2. What are the three examples Arroyo gives for how we can prepare for the
massive impact climate change will have on all of us?
Answer:
She suggests doing three main things to prepare: adapting to violent storms and floods, preparing for heat and drought, and adapting to the rising seas by rebuilding and restructuring.
The three examples of Arroyo that gives an idea of the massive impact of climate change are adapting to violent storms and floods, preparing for heat and drought, and adapting to the rising seas by rebuilding and restructuring.
What is theory of Arroyo?According to this theory of Arroyo, the first step is to grow food crop varieties that are resistant to drought in order to feed the people that live in these arid areas.
Adopting conservation and protection measures for water sources comes ranked second. Others comprise;
Altruistic water use in residences, farms, and businesses
Utilizing alternative energy sources to cut down on greenhouse gas emissions
Therefore, Arroyo's three adaptation strategies—to ferocious storms and floods, scorching heat, and drought—as well as its rebuilding and reorganizing efforts in response to rising sea levels—all serve as illustrations of the significant effects of climate change.
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Explain why a circulatory system is important in meeting the needs of all cells throughput an animals body.
Answer:
The system is connected to all of your body's cells so that it can transport oxygen efficiently. When you breathe, the circulatory system carries oxygen to your cells and carries dissolved carbon dioxide back to the lungs. Every cell that needs oxygen needs access to the fluids in your circulatory system.
When a volcano erupts, particles of rock and ash are released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow.
In this scenario, which spheres of Earth interact?
1.biosphere, cryosphere, hemisphere
2.cryosphere, geosphere, biosphere
3.geosphere, hydrosphere, biosphere
4.hydrosphere, cryosphere, geosphere
Answer:
When a volcano erupts particles of rock and ash are released into the atmosphere after this water droplets form around?
When a volcano erupts, particles of rock and ash are released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow. Which scenario describes an interaction between two of Earth's spheres?
Explanation:
The spheres of Earth that interact in this scenario are the geosphere, hydrosphere, and biosphere.
The geosphere, which makes up the solid Earth, spews rock and ash particles into the atmosphere during a volcanic eruption. These ascenting particles come into contact with the hydrosphere, or the water systems of Earth. Rain is created when water droplets gather around the particles. This rain, which has been enhanced with minerals from volcanic material, falls to the biosphere and fosters the growth of plants.
The interplay between the geosphere, hydrosphere, and biosphere demonstrates the complex interrelationships between Earth's constituent parts, demonstrating how changes in one sphere can have an effect on others, eventually influencing the environment and sustaining life.
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If a brown-eyed mother and a blue-eyed father have four children, three will probably have brown eyes. What can you conclude from this? *
A. Brown eyes are a successive trait
B. Brown eyes are a submissive trait
C. Brown eyes are a recessive trait
D. Brown eyes are a dominant trait
A man whose blood group is heterozygous B is married to a woman whose blood up is also heterozygous B
Which of the following statements is correct about the blood group of their four offspring?
Answer:
for got too bro
Explanation:
Why do you think people start smoking?
Explain and provide a sample situation to support the given words below. (i will mark as the brainliest if who could answer this asap)
1. Parental Role Model
2. Adolescents Experimentation and Rebellion
3. Depression
4. Limited Education
5. Weight Control
6. Aggressive Marketing
7.Stress
8. Addiction
What's biology?
Biology is a natural sciences that deals with the study of living things.
Answer:
True
Explanation:
You study plants, animals, and cells in biology if I'm not mistaken.
How the animals survive in tropical rainforest
Answer:
The animals use the tall trees for shelter, hiding places from their predators, and source of food. Because there are many animals competing for food, many animals have adapted by learning to eat a particular food eaten by no there animal
Explanation:
Put in own words and add more reasons and details hope it helped a lil
OMG HELP RN
The following chart below show the conductors and insulators experimented with in the circuits gizmo. The chart has been filled in incorrectly with some insulators and conductors in the wrong column.
True
False
Answer:
TRUE
Explanation:
it’s true i just finished that worksheet
Question 13
What form of cell death results from severe damage and is uncontrolled?
5. Why do you think it's important to look at the impact on the ecosystem as a whole, instead of just the individual"?
Answer:
Ecosystem Services are the benefits nature provides to human well-being. The term is frequently thrown around in academic circles, but why should you care about them?
Although the term is quite new, our connection to nature is not. We depend on nature for our survival - without healthy ecosystems, our drinking water isn’t clean nor is the air we breathe. We also enjoy nature... studies show that people who spend time in nature tend to be happier than those that don’t. It can even act as a natural anti-depressant. With industry and urban sprawl expanding at unprecedented rates, Ecosystem Services attempt to translate the benefits we receive from nature into economic terms so we can better understand the trade-offs we are making between nature and industrial development.
This brings us to the reasons why we feel Ecosystem Services are important to each and every person:
1. Boundless Benefits
Understanding nature in economic terms, while not perfect, allows us to put everything into the same comparison unit. Despite nature being such an integral part of the human existence, it is sometimes an afterthought in today’s economy. Nature and money are often on competing terms, so to make a more level playing field, environmental economists have tried to bridge this gap by placing a monetary value on the benefits nature provides.
A recent study estimated the combined benefits of nature to people at well over $100 USD trillion per year. To put this in perspective, the top 50 most profitable companies globally combine to make just under $10 USD trillion per year.
Valuing nature in a way that can speak to decision makers, may help promote conservation efforts in the future. It brings nature back into the cost-benefit discussion in a way that can be easily understood.
2. The Foundation For Sustainable Development
Ecosystem Services help measure the true cost of industrial development. Often, the impact industrial development has on the economy and job creation overshadows the cost it will have on surrounding lakes, forests, keystone species, and so on. Assigning a dollar value to these lakes and forests, and the Ecosystem Services they provide, helps adjust the cost benefit analysis by evaluating the negative effects development will have on the natural environment.
Companies have also started to use Ecosystem Services in conservation offset planning, where they can buy and sell credits to offset a development or set aside land to meet a specific offset. Sustainable development supports the maintenance of a healthy economy while also protecting the ecological process for future generations.
3. Essential For Our Survival
Whether you live in rural Newfoundland or downtown Los Angeles, your dependence on Ecosystem Services is the same. As a society, we depend on healthy ecosystems to do many things; to purify the air so we can breathe properly, sequester carbon for climate regulation, cycle nutrients so we have access to clean drinking water without costly infrastructure, and pollinate our crops so we don’t go hungry. As the world’s population continues to grow, so too does our dependence on healthy ecosystems to provide the necessities essential to our survival.
Don’t we all want to leave the planet in a good condition for our successors? Ecosystem Services valuation and assessment is one way to help make this happen. By clearly understanding their value, we can make the best and most informed decisions about how to manage our landscape to ensure this value isn’t lost.
Explanation:
goodluck:)
Answer:
probably 2.....
..
.
........
Need help with the question in the picture
Answer:
The answer is k = −11
Explanation:
f(−2)= 0
f(−2)= − 8 − 24 − 2 k + 10 = 0
2 k = -22
and finally; k= −11
What were Mendel's 4 ideas explaining the inheritance pattern he observed? Which one of them is considered the Law of Segregation?
Answer:
1) Principles of Paired Factors
2) Principle of Dominance
3) Law of Segregation or Law of Purity of Gametes (Mendel's First Law of Inheritance)
4) Law of Independent Assortment (Mendel's Second Law of Inheritance).
Explanation:
Hope this helps.
Which of the following statements is true about body system interactions?
a. When someone drinks fluids, these fluids are absorbed into the blood stream (cardiovascular system) from the small intestines (digestive system).
b. When someone drinks fluids, the kidneys (urinary system) sends a message to the brain (nervous system) that more water needs to be released from the body.
c. When someone drinks fluids, these fluids are absorbed into the kidneys (urinary system) from the stomach (digestive system).
d. When someone drinks fluids, these fluids are transported directly to the kidneys (urinary system) by the blood stream (cardiovascular system) and go nowhere else in the body.
Answer:
true
false
true
true
hhhh
theory definition for biology
please and thankyou!
Answer:
the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.
the plants and animals of a particular area.
"the biology of the Chesapeake Bay"
the physiology, behaviour, and other qualities of a particular organism or class of organisms.
"human biology
Biology is the study of all the concepts of natural science of life and living organisms. It comprises of living organisms' physical structure, important molecular interactions, chemical processes, physiological mechanisms, development and evolution. Biology also tells us how cells and organisms work.
How waste is removed from plant body ?
Answer:
Living organisms sustain life, based on certain life processes. These life processes help to regulate their daily activities. Excretion is one among them. The metabolism takes place in the cells of living organisms resulting in both useful and toxic products. The accumulation of toxins may harm the organism. Thus, the living organisms remove all these metabolic wastes from their body and this process is called excretion. Different organisms follow different modes of excretion. Let’s have a glance at excretion in plants and how excretion in plants is different from that of animals.
Explanation:
I hope you can help buddy (:
Answer:
the excretory organ removes these westes.
this process of removal of metabolic waste from the body is known as excretion
does the digestive system functions well if the small intestine is being removed?
Answer:
Its hard to live without the small intestine
Explanation:
put the microscope on the table with the arm towards you.
Answer:
Gently place the microscope on the lab table with the arm facing you. The microscope's base should be resting evenly on the table, approximately 10 cm from the table's edge. 3. Raise the body tube by turning the coarse adjustment knob until the objective lens is about 2 cm above the opening of the stage.
which is NOT a example of a biotic factor?
Answer:
Explanation:
Plants, trees, humans, insects, animals, birds, etc. ... Abiotic factors are those that contain non-living organisms. These factors include soil, air, water, sunlight, etc.
What is the size of the giraffe population?
Answer: 117,000
Explanation:
It is based on current environmental protection.
Which phrase best defines the orbit of Earth? A. the position in pace of Earth at a certain time B. the distance from the sun to Earth at any point C. the spin of Earth on its axis as it moves forward D. the path Earth travels as it revolves around the sun
The phrase that best defines the orbit of Earth is the path Earth travels as it revolves around the sun. That is option D.
Rotation of the EarthThe earth is one of the nine planets that makes up the solar system.
An orbit is a regular, repeating path that an object takes around another one.
The earth and other planets travels round the sun. That is to say, the orbit of earth is defined as the path the earth passes through or travels as it revolves around the sun.
The earth rotates about its own axis within 24 hours causing day and night while it travels round the sun in every 365.25 days.
Therefore, the orbit of Earth is the path Earth travels as it revolves around the sun.
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Belinda is weighing pine cones she found on a walk. there are 5 pine cones she measured the following masses in grams 5, 9, 8, 19, 9 what is the mode mass
A. 14
B. 10
C. 9
D. 8