Plants use tubes with stems and trunks that carry water and nutrients to different parts of the plants. In most animals, the circulatory system has three main components. Blood vessels form a system of channels or tubes through which the fluid blood travels, carrying materials the body needs to function.The heart is the main organ of the circulatory system. It is a pump that moves the blood through vessels. Humans have only one heart, but some animals have more than one heart. Hearts and vessels often contain valves to control the direction of the blood’s flow. They allow blood to flow in a particular direction and prevent it from flowing in the opposite direction.
Animal circulatory systems include hearts, valves, and vessels that transport blood, varying from open systems in invertebrates to closed, multichambered systems in vertebrates. Plants, however, use a vascular system with xylem and phloem for the transportation of water, minerals, and metabolic products without a heart or blood.
When comparing the circulatory systems of plants and animals, we observe significant differences due to their distinct biological functions and structures. The circulatory system in animals, which often includes a heart, valves, and a network of vessels, transports blood and is responsible for delivering nutrients and oxygen, removing wastes, protecting against invaders, and aiding in temperature regulation. Evolution has brought forth variations in this system, ranging from none in sponges and jellyfish, to open systems in invertebrates like insects, and closed systems with multichambered hearts in vertebrates.
In contrast, plants do not have a circulatory system comparable to that of animals. Instead, they possess a vascular system consisting of xylem and phloem. Xylem transports water and dissolved minerals from the roots to the rest of the plant, and phloem distributes sugars and other metabolic products from the leaves to other parts of the plant. These two systems work together to distribute necessary substances throughout the plant body without the need for a heart or blood.
Overall, while the circulatory system in animals is designed to support their mobility and higher energy demands with a heart and closed network of vessels, plants have a stationary vascular system that efficiently fulfills their needs for growth and nutrient distribution without such complexity.
what happens to the solar energy absorbed by plants during photosynthesis?
Plants absorb solar energy and convert it into chemical energy through photosynthesis, producing glucose and oxygen which are vital for plant growth and supporting life.
Explanation:During photosynthesis, plants absorb solar energy from the sun and convert it into chemical energy. This process starts with the light-dependent reactions, where chlorophyll in the chloroplasts absorbs sunlight, energizing electrons that then move through an electron transport chain. This initial phase results in the production of ATP and NADPH. Following this, in the light-independent reactions, the stored chemical energy in ATP and NADPH is used to convert carbon dioxide into glucose.
Thus, solar energy is transformed into a more stable form, chemical energy, which is then utilized to build sugars, cellulose, and other materials essential for plant growth and development.
Photosynthesis converts absorbed solar energy into chemical energy stored in glucose. This process involves converting light energy to chemical energy via the light-dependent reactions and using it in the Calvin cycle to produce sugars.
Explanation:What Happens to Solar Energy Absorbed by Plants during Photosynthesis?During photosynthesis, plants absorb solar energy from the sun and use it to convert carbon dioxide and water into glucose and oxygen. This process takes the radiant energy in sunlight and transforms it into stored chemical energy within the chemical bonds of glucose. The Light Reactions of photosynthesis involve the pigment chlorophyll absorbing sunlight energy, which then gets converted into chemical energy stored in molecules of ATP and NADPH.
This chemical energy is later used in the light-independent reactions, also known as the Calvin cycle, to drive the synthesis of sugar molecules from carbon dioxide. Thus, the solar energy is converted into a form that can be stored and used by the plant to maintain its processes and grow. Additionally, this conversion facilitates the flow of energy through ecosystems, as plants serve as a primary energy source for other organisms through the food chain.
What are the limiting factors of an eco-friendly city
Environmental factors, also known as eco factors, are the physical, chemical, and biological conditions that affect living organisms and their surrounding environment.
These factors include things like temperature, humidity, air quality, water quality, soil quality, availability of food and resources, and the presence of other organisms in the ecosystem.
They play a critical role in shaping the behavior and survival of living organisms.
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24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
It takes a bus driver 30 minutes to pick up students from four stops. The last stop is at the corner of Green Street and Route 70. The most direct route to school is north on Route 70. The speed limit on Route 70 is 35 kph. The bus driver wants to calculate the average velocity from the last stop to school. Can this be done from the information given?
A. No, the distance from the first stop to the school and the average speed are required
B. Yes, if the speed limit is 35 kph, and the elapsed time is 30 minutes, the average velocity is 17.5 kph north
C. No, the distance from the last stop to the school and the time it takes to travel that distance are required.
D. Yes, if the average speed is 35 kph, and it takes 30 minutes, the average velocity is 17.5 kph.
The answer is C. No, the distance from the last stop to the school and the time it takes to travel that distance are required.
No, the distance from the last stop to the school and the time it takes to travel that distance are required.
What is distance?A scalar quantity known as distance measures "how much ground an object has traversed" while moving. Without taking into account direction, distance measures the length between two points or objects.
Distance is a scalar property, which means it simply considers the overall magnitude and does not take start or endpoints into account. Distance can only have a positive or zero value because it is a scalar attribute; it cannot have a negative value.
The meter (m) is the commonly used unit of measurement for distance, but greater distances can also be expressed in kilometers (km), and smaller distances can be expressed in centimeters (cm) or millimeters (mm).
Therefore, No, the distance from the last stop to the school and the time it takes to travel that distance are required.
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What organ do we use to store air/breathe?
What are three parts of a seed?
What do cells in a structure do? Add as much information as possible for the cell: Nucleus, Rough endoplasmic reticulum, Mitochondria, and Chloroplast. Please don't copy off the internet or I might get in trouble! But please explain your answer if there's not enough explanation.
Which is an accurate description of the growth of a natural animal population? A) It is limited by environmental factors. B) It continues to grow indefinitely. C) It is genetically determined. D) It never changes.
It is limited by environmental factors. A population of organisms cannot survive if it exceeds its carrying capacity. There are also limiting factors, such as predators, disease, etc.
The accurate description of the growth of a natural animal animal population is limited by environmental factors. Thus, option A is correct.
What is growth of natural animal population?The population of an organism can't survive if it exceeds it's carrying capacity.
The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase.
If animal population increases the population that eat that animal might also increase.
The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease.
When predictors became scarce due to over population, the weaker species of animal start or die in other ways .
Therefore, the accurate description of the growth of a natural animal animal population is limited by environmental factors. Thus, option A is correct.
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how do you think ideas like the periodic table get widely known and accepted in the scientific community
2. Antigens can trigger an immune response. Explain if this is a specific or a nonspecific defense.
This is a specific response because in order to fight antigens, white blood cells, the most important cells of the immune system, must produce large, Y-shaped proteins known as antibodies to fight these invaders. This is a type of specific defense (as I have identified antibodies as specific defenses is the chart above).
Correct answer: Specific immune response
The specific immune response also called as adaptive or acquired immune system is a system that contains highly specialized, systemic cells that prevent the growth of pathogen or eliminate the pathogen out of the body.
When a body encounters an antigen, it starts the formation of a complex protein called the antibody, which is made specifically to a particular antigen.
The white blood cells make the specific immune response and are responsible for the production of the antibody that destroys the pathogen.
Some mixtures, such as the cup of coffee shown here, have the same appearance and properties throughout. What term best describes such mixtures?
A. homogenious
B. colloids
C. heterogenious
D. solutes
Answer: The answer would be A
Explanation: It would be A because it all looks the same, and it's all mixed evenly. A homogeneous mixture is something that IS mixed evenly, whereas a heterogeneous mixture is something that is NOT mixed evenly.
And I have absolutely no idea what colloids and solutes are:)
All of the following are characteristics of organisms EXCEPT
a. movement
b. reproduction
c. color
d. growth
Which organ contains alveoli?
A) gills
B) lungs
C) neither gills nor lungs
D) both gills and lungs
Which process is responsible for compressing successive strata in the earth?
(A) erosion
(B) faulting
(C) deposition
(D) folding
Answer:
d
Explanation:ez took it
Folding is responsible for compressing successive strata in the earth. Therefore, option (D) is correct.
What is folding ?The process of folding happens when tectonic processes put stress on a rock, but the rock does not break as a result of the stress. As the exposed faces of the folded rocks are worn away by erosion, this can result in a wide variety of landforms. Folds that resemble an arch are called anticlines, and folds that resemble the letter 'U' are called synclines.
This takes place deep within the earth, where the rocks are subjected to intense pressure and the temperature is much higher. Rocks that have been folded frequently occur in mountain ranges such as the Himalayas, the Alps, and the Scottish Highlands.
Therefore, option (D) is correct.
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Is a hammer a pulley when u use it to take out a screw.
If left in the sun, which would increase in temperature FIRST?
A man and woman have a son who is color blind, a recessive sex-linked trait carried on the X-chromosome, but neither parent is color blind. The woman is now pregnant with their second child. Which of the following statements is true about the second child?
D. A daughter will not be color blind because the father is not a carrier of the recessive allele.
when an atom loses or gains electrons, it becomes a_____
A) ion
B) formula
C) crystal
D) subscript
What is the optimum temperature for clam development?
what compounds do plants cells make using G3P
Plant cells use Glyceraldehyde-3-phosphate (G3P) to form various organic compounds. Following the Calvin cycle, for every three "turns," enough net carbon is fixed to export one G3P out of six produced. This single G3P then contributes to the synthesis of carbohydrates and other compounds required by the plant.
In the process of photosynthesis, plant cells employ the Calvin cycle to fix carbon into a useful form. G3P, a three-carbon molecule, is a vital intermediate in this cycle. For every three complete cycles, six molecules of G3P are produced. Only one of these molecules is exported into the cytoplasm to synthesize other organic compounds, like carbohydrates. The remaining five G3P molecules are utilized to regenerate RuBP with the consumption of additional ATP, thus preparing the Calvin cycle to fix more atmospheric CO2. The exported G3P is central to producing glucose, which is further used for energy storage, cellulose for cell walls, and other fundamental organic compounds crucial to plant growth and development.
Sometimes when people are cold they rub their hands together to create friction. Keeping this is mind, briefly explain the relationship between friction and thermal energy?
In stage 2 of photossynthesis, NADP+ becomes NADPH by adding an H+. Where does the H+ come from?
A. Splitting of water
B. "excited" electron
C. ATP becomes ADP
D. Carbon fixation
In this equation for photosynthesis, where does the first reactant come from and what happens to it in the photosynthetic process?
6CO2 + 6H20 -> C6H1206 +602
A. Water is split to drive NADP to NADPH conversion, which is formed in the Calvin Cycle
B. Carbon Dioxide from the air is broken down in the Calvin Cycle
C. Gluecose is formed right after the Calvin Cycle
D. Oxygen is released as a gas after water is split.
PLEASE HELP ME!
The ____ is made up of fossils that have been discovered around the world. Plz help :/
Answer:
fossil record
Hope it helps
1. Which of the following is always found where plates of the lithosphere meet?
A. Convection current
B.Sea-floor spreading
C. Convergent boundary
D. Tectonic plate boundary
Which of these is one of the main ways that a new species forms?
a.
Cross-breeding occurs within the species.
b.
A group is separated from the rest of the species.
c.
Competition occurs between members of the species.
d.
Mutations occur in the alleles of members of the species.
Answer:
B. A group is separated from the rest of the species.
Explanation:
Just took test
One of the main ways through which a new species is formed may include a group being separated from the rest of the species. Thus, the correct option for this question is B.
What is Species?Species may be defined as the collection of organisms that can significantly reproduce with one another in nature in order to produce fertile offspring.
The process of speciation occurs when a particular species is separated from other members of the same species over a long period of time due to geographical barriers or others restrictions. The process of speciation may be divided into four categories, i.e. allopatric, sympatric, parapatric, and peripatric.
Therefore, one of the main ways through which a new species is formed may include a group being separated from the rest of the species. Thus, the correct option for this question is B.
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describe the process of exfoliation pls
Answer:
Explanation:
Exfoliation is the peeling away of sheets of rock millimeters to meters in thickness from a rock's surface due a range of physical and chemical processes during exhumation and weathering.It can occur due to several processes.
Cane toads are highly successful as an invasive species in Australia because there is only one species that is belivied to be able to prey on them
Answer: the answer is true
Explanation:
Is summer when we are facing the sun and winter is when we are facing away from the sun?
What can happen when you have taken much more than the normal amounts of vitamins?
Answer:
Excessive intake of vitamin hurts human body in several ways
Explanation:
Excessive intake of vitamin hurts human body in several ways. Some of the common harms caused are as follows -
a) Fat-soluble vitamins such as vitamins A, D, E and K if taken in excess cause building of toxic elements in the liver, brain and heart as they being insoluble in water are stored in body fat tissues.
b) Intake of Vitamin C - Excess of vitamin C causes problems such as cramps in stomach, nausea , diarrhea
c) Zinc & selenium intake causes harm to the nerves, hairs , gastrointestine etc.
An unconformity between rock layers can arise ones what stops?
What are three rules of diffusion?