Answer:
The respiratory system and lungs work very closely with the cardiovascular system for the uptake and elimination of gases and the distribution of energy in the body. Oxygen from the air is absorbed into the bloodstream through the lungs. When it reaches the lungs, the function of the cardiovascular system begins, since that is where the non-oxygenated blood is oxygenated and returns to the heart. When in the cardiovascular system, the blood reaches the capillaries in the tissues, oxygen is released, which the cells use to produce energy. These cells release waste products, such as carbon dioxide and water, which are absorbed and transported by the blood.
Explanation:
O2 and CO2 are constantly circulating and passing from one medium to another, so much so that: O2 passes, along with other gases, from the atmosphere to the airways, entering through the nostrils and driving through the larynx, trachea, source bronchi, terminal bronchioles, respiratory bronchioles, alveolar sacs and alveoli. From here, the O2 diffuses through the respiratory membrane towards the pulmonary capillaries, and from these, in a totally different environment from the previous one (liquid instead of air), it circulates throughout the systemic arterial tree towards the tissues; where upon arrival it will enter the cells, crossing their membranes and exchanging with CO2. CO2, for its part, will follow the exact opposite path of O2, until it exits through the nostrils into the atmosphere. Once the inspired air reaches the alveoli, it is ready to perform hematosis, which is carried out thanks to the pressure gradient, of O2 and CO2, which exists between the alveolus and the pulmonary capillary. In such a way that O2 diffuses, in favor of a gradient, towards the blood and CO2, in the opposite direction, does so towards the alveolus. When O2 passes into the blood, an exchange takes place in the tissues (internal respiration). It dissociates from hemoglobin, diffusing from the intracellular fluid of the erythrocyte into the plasma, and from there it is distributed through the bloodstream to all cells of the body.
YOOOOOOO ANSWERRR THISSSSS PLEASEEEEEE. BRAINLIEST!!!!!!!!!!
What statements are true about the biological macromolecules
-All biomolecules could be called carbon-based molecules.
-The monomers of DNA are nucleotides.
-Ready cellular energy comes in the form of lipids.
-Carbohydrates contain nitrogen and therefore differ from the other macromolecules
-Cell membranes are made, in part, from phospholipids.
-The monomers of starch are monosaccharides.
Answer:
- all biomolecules could be called carbon - based molecules
- The monomers of DNA are nucleotides
- Cell membranes are made, in part, from phospholipids
- The monomers of starch are monosaccharides
Explanation:
Just got that question!
The statements that are true about the biological macromolecule include:
All biomolecules could be called carbon-based molecules. This statement is true concerning biomolecules because all living organisms are made up of the carbon-based molecules which includes:carbohydrates, lipids, proteins, and nucleic acids.The monomers of DNA are nucleotides. This statement is TRUE because Deoxyribonucleic acid (DNA) are polymers which are made up of nucleotide bases.The monomers of starch are monosaccharides. This statement is TRUE because starch is a complex carbohydrate that is made up of long polymers of monosaccharides.Cell membranes are made, in part, from phospholipids. This statement is TRUE because a typical structure a cell membrane contains phospholipids which forms the lipid bilayers that makes it a selective permeable membrane.The biological macromolecules that contains false statements include
Ready cellular energy comes in the form of lipids. This statement is false because cellular energy readily comes from glucoseCarbohydrates contain nitrogen and therefore differ from the other macromolecules. This statement is false because carbohydrates and lipids are made of only carbon, hydrogen, and oxygen but not nitrogen.Learn more here:
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Which of the following phenomena usually only has an effect on very small populations?
Mutations
Mutations
Recombination
Recombination
Gene flow
Gene flow
Genetic drift
A) Populations
B) Genes
C) Individuals
D) Communities
A population is defined as:
A) all individuals of all species located throughout the world
B) all individuals of the same species located in a given geographic region
C) all individuals of the same species located throughout the world.
D) all individuals of all species located in a given country.
E) those individuals of the same species that have an identical genetic makeup.
The allele frequency of a population is the:
A) sum of all genes in that population.
B) relative proportion of a given allele in that population.
C) number of different types of alleles in that population.
D) number of all alleles in that population.
Genetic Drift is the change in the gene frequency of a population over time. The Genetic Drift only has an effect on very small populations.
What is Genetic Drift?It can be defined as the change in the gene frequency of a population over time by chance.Genetic Drift affects populations of all sizes but the effect is large for the small population.It plays a major role when the size of the population is reduced by a disaster or a small population splits up from the founding population.Therefore, the Genetic Drift only has an effect on very small populations.
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A type of neurone that carries impulses away from the receptor.
a) Sensory
b) relay
c) motor
This bottom layer of the epidermis connects the epidermis to the dermis
Answer:
basement membrane
Explanation:
In genetics, the PHYSICAL characteristic (tall, short, round, wrinkled) of an
individual is referred to as: *
Answer:
phenotype, genotype
Explanation:
ANSWER ASAP Which factor determines the amount of gas that can dissolve in ocean water? (A) the motion of the air above the ocean water (B) the temperature of the air above the ocean water (C) the motion of the ocean water currents D the temperature of the ocean water
Answer:
the answer is b
Explanation:
b because i say so
BRAINLIEST!! Write an essay describing the agricultural/farming practices that contributed to the Dust bowl in in the the 1930s and how it could have been avoided.
The Dust Bowl was a natural disaster that devastated the Midwest in the 1930s. It was the worst drought in North America in 1,000 years.1 Unsustainable farming practices worsened the drought’s effect, killing the crops that kept the soil in place. When winds blew, they raised enormous clouds of dust. It deposited mounds of dirt on everything, even covering houses. Dust suffocated livestock and caused pneumonia in children.
Hope this helps *_-.
An essay describing the agricultural/farming practices that contributed to the Dust bowl in the 1930s and how it could have been avoided is mentioned below.
What is an essay?An essay is a written composition that presents an argument, analysis, or discussion on a particular topic or subject.The important points that should be included in the essay describing the agricultural/farming practices are:
Write about the dust bowl of the 1930s, which was a catastrophic ecological disaster that devastated the Great Plains region of the United States, causing widespread soil erosion, crop failures, and human suffering.In the next paragraph, mention the primary agricultural practices that led to the Dust Bowl were the widespread use of intensive tillage and monoculture farming. In the next paragraph, offer the solutions that would have been used to adopt conservation tillage practices, such as minimum tillage or no-till farming.In the conclusion, summarize the whole essay by telling how the tragedy could have been avoided if farmers had adopted more sustainable agricultural practices.Learn more about essay, here:
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7 How are divergent boundaries between tectonic plates different from convergent boundaries? А Plates move north at divergent boundaries, and south at convergent boundaries. B Plates move downward at divergent boundaries, and upward at a convergent boundaries. C Plates move apart at divergent boundaries, and come together at a convergent boundaries. D Plates form trenches at divergent boundaries, and mountains at convergent boundaries. 7 of 10
Answer:
C BECAUSE IS THE ANSWER CORETALY
50 points! d) In general, how is a whole chromosome probe used to study a person's genome?
Explanation:
Scientists dye the chromosome probe and wait for it to bind with its corresponding DNA strand. This allows the Scientists to locate the particular strand of DNA.
I hope it's helpful!
Answer:
d) In general, how is a whole chromosome probe used to study a person's genome? (2 points) Scientists dye the chromosome probe and wait for it to bind with its corresponding DNA strand. This allows the scientists to locate the particular strand of DNA
Explanation:
HELP!!! Which of the following represent examples of how cells in multicellular organisms can communicate with each other to coordinate their activities? Select all that apply.
A. nucleus of eukaryotes
B. nervous system
C. hormones
D. red and white blood cells
Answer:
The answer is B andC
Explanation:
Which of the following remains constant in Earth's carbon cycle?
o the total mass of available carbon
O the way organisms use carbon
O the physical state of carbon-containing molecules
O the molecule in which a particular carbon atom is found
Answer:
the molecules in which a particular atom is found.
Explanation:
hope this helps
The stages of mitosis in order are...
a) Prophase, Metaphase, Anaphase, Telophase
b) Metaphase, Telophase, Prophase, Anaphase
c) Anaphase, Prophase, Telophase, Metaphase
d) Telophase, Anaphase, Metaphase, Prophase
which of the following are voltage sources
why do pine trees have shallow root
Answer:
Pine trees + shallow soil = no depth for stability
Explanation:
Pines, notably Ponderosa pines, tend to have a deep tap root with a much shallower (12″ inches or shallower from the ground surface level) root system. The shallower roots follow cracks and water spots for the pine to quench its
Most plants are
seedless nonvascular plants
nonvascular seed plants
seedless vascular plants
vascular seed plants
Answer:
seedless vascular plants
Answer: seedless vascular plants
Explanation:
which best exsplains a primary reason for the inhabilty of life to exsist in earths early atmosphere
Answer:
earth‘s early atmosphere was pretty thin when the planet formed and cooled after a few million years, there wasn’t the right concentration of nitrogen in the atmosphere to allow life forms to exist
Explanation:
Name the 2 smaller regions the Northeast is sometimes divided into.
Answer:
New England and the Middle Atlantic states.
Explanation:
The region is often subdivided into New England (the six states east of New York State) and the Mid-Atlantic states (New York, New Jersey and Pennsylvania).
Hope this helps :)
Cytokinesis happens differently for plant and animal cells. Both separate cytoplasm between two new daughter cells. However, which type of cell cytokinesis looks like a balloon being separated by a string being pulled tightly between them?
Question 2 options:
Neither
Both
Animal Cell Cytokinesis
Plant Cell cytokinesis
Answer:
Plant cell
Explanation:
Which of the following statements about mitochondrial chemiosmosis is NOT true?
A
A proton gradient is established across the inner membrane of the mitochondrion.
B
The potential energy released from the mitochondrial proton gradient is used to produce ATP.
с
The mitochondrial proton gradient provides energy for muscle contraction
D
Proteins embedded in the inner mitochondrial membrane play an important role in ATP synthesis,
E
Heat energy is required to establish the electron transport chain
Answer:
Heat energy is required to establish the electron transport chain
Explanation:
The rest of the choices are true about mitochondrial chemiosmosis
How can geologists predict events that will occur at convergent, divergent and transform boundaries?
Answer:
They are transformed by the armies of the United States and China wants to defeat them
astrology work, help needed please
Answer:
option a.....only half of the illuminated surface on moon is visible
what is not something which can be measured to find the rate of transpiration
PLEASE HELP ME
Which of the following is not an example of acceleration?
O an airplane taking off
O a cheetah running 30 m/s
east a car stopping at a red traffic light
O a person jogging 3 m/s along a winding path
Answer:
A car stopping a red light.
Explanation:
Acceleration is when an object speeds up, not slows down.
How might a farmer use artificial selection to increase crop yields over time?
Answer:
artificial selection has a long been used in agriculture to produce animalsand crops with desirable traits. the meatssold today are the results of the selective breeding of chickens, cattle, sheep and pigs. many fruits and vegetables have been improved or even created through artificial selection.
what is the definition of cellular respiration?
Answer:
Explanation:
Holy jeez
Study the food web above. The proliferation of which organism would MOST negatively affect food production for
humans?
A)
grass
B)
hawks
C)
mice
D)
snakes
Mice would most negatively affect food production for humans. So, the correct option is (C).
What is Food Web?Food web is the natural interconnection of food chains. It is a graphical representation of what happens in ecology. Food web is also called consumer resource system.
A food web consists of many food chains such as hawk eats snake which may also be eaten by frog which has eaten grasshopper and grasshopper eats grass. Food web shows many different parts for plants and animals which are connected to each other.
A food web represented by the interconnection of different types of food chains, in which producers and consumers of many food chains interact with each other. This is complex web type of food chain.
Thus, Mice would most negatively affect food production for humans. So, the correct option is (C).
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A car turns left while maintaining a speed of 20 m/s. Does the car’s velocity change? Explain your reasoning!
Answer:
Yes
Explanation:
Speed is a scalar quantity (only has a magnitude). It signifies the rate of change of an object's movement.
Velocity is a vector quantity that signifies the rate of change of movement but also the direction of an object's movement.
Since the car turns, its direction changes, so the velocity changes.
How are young volcanoes evidence of cracks in
the earth's surface to magma below?
These separating borders create fractures and fissures in the rocks. It is these cracks in the land that allow hot magma to surge upwards and fill the gaps.
PLS ANSWER C six H twelve O six, plus six O two, yields six C O two, plus six H two O, plus energy.
In your own words, explain what the summary equation tells you about cellular respiration.
Answer:
Explanation:
The overall (unbalanced) chemical equation for cellular respiration is: C6H12O6+O2→CO2+H2O+energy. Explanation: The balanced equation ...