PLEASE HELP!!!!
Look at the diagram below that shows the connection between the circulatory and the respiratory systems. Use the diagram to explain why pulse and breathing rates change when you exercise.
Answers
Answer:
during exercise there is an increase in physical activity and the muscle cells respire more than they do when the body is at rest
Explanation:
the heart rate increases during exercise as well as the rate of breathing, this makes sure that more oxygen is absorbed into the blood and more carbon dioxide is removed from it
Related Questions
Describe how the carbon cycle transfers matter between organisms and their environment. Include three examples. For each example identify which of Earth's spheres (hydrosphere, geosphere, atmosphere, and biosphere) are involved in the exchange of carbon.
Answers
Answer:
Crabon is consumed by plants to produce food and taken by other organism as food from plants. They release then CO2 either through respiration or when they die. During this entire chain, carbon moves through all the spheres of earth
Explanation:
Carbon constitutes the base of life on earth. Carbon and its compound regulate between the different spheres of earth to sustain the ecosystems and flow of nutrients and energy.
Carbon is exchanged between all the hemisphere i.e biosphere, geosphere, hydrosphere and atmosphere. For instance – The ocean consists of largest reserve of carbon on earth (part of hydrosphere), Terrestrial biosphere comprising of non-living organic materials and fresh water sources as sink of carbon in biosphere. The sediments and soils consists of carbon (geosphere) and atmosphere consists of a large amount of gaseous carbon dioxide.
Plants take in gaseous carbon dioxide and produces food that stores in it or is consumed by other living organisms. When these organic animals or plants die eventually, they release the solid carbon contained within them either in the geosphere, biosphere or hydrosphere.
Which best describes what the picture shows?
Answers
Answer:
what picture is this i don ,t see it
Answer:
D
Explanation:
Food molecules such as proteins cannot be absorbed unless they are digested.
Give one reason why.
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Answer:
Your body can't absorb proteins in their natural state. Certain proteases in your stomach and pancreas break the bonds that hold the amino acids in protein together so your body can absorb the composite amino acids individually.
Food molecules cannot be absorbed unless digested because ; They are too big to pass through the plasma membrane, in their natural state.
The food molecules such as protein needs to be broken down into its composites amino acids for easy absorption. food molecules, cannot be absorbed in their natural state because they are too big to pass through the plasma membrane.
Protein is broken down ( digested ) by proteases and pancreas into composite amino acids that is absorbable into the human cells.
Hence we can conclude that protein cannot be absorbed unless digested because they are too big to pass through the plasma membrane, in their natural state.
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the diagram shows three steps in the clotting process.
Which lists the clotting process in the proper order?
o А, С, В
ОВ, А, С
o С, А, В
е В, С, А
Answers
Answer:
В, С, А
Explanation:
The process of clotting is known as the hemostasis which takes place in three steps: the vascular spasm, the formation of a plug of platelets and the coagulation.
In the given question, step B shows the process of vascular spasm in which the vascular blood vessels becomes constricted due to injury. After this, the platelets present in the blood starts accumulating at the site of injury. These platelets stick together and form a plug-like structure at the site of injury.
Later, step A takes place that is fibrin protein present in the blood starts forming a mesh-like structure which does not allow the bleeding and this process is known as coagulation.
Thus, the selected option is the correct answer.
Describe the process of digestion in the mouth
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Do you think SSP is an organization that can be trusted to write articles that are truthful?
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Answer:
The Society for Science & the Public (SSP) is a non-profit organization that was established in 1921, a few years after the first world war. The journalist and scientist who founded it aimed to promote science in the general masses. They have dedicated their time and resources into conducting research that could benefit the people as large and hence, can be seen as a credible source of information and guidance.
Hope that answers the question, have a great day!
Answer:
guy above is correct
Explanation:
1. Which of the following nonrenewable resources cannot be recycled?
A. copper
B. iron
C. aluminum
D. oil
Answers
Answer:
B
Explanation:
Describe the sequence of events during a blood clot.
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Answer: Hemostasis includes three steps that occur in a rapid sequence:
Explanation: 1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot.
or:
The Blood Clotting Process
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.
Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.
Platelet plug. ...
Fibrin clot.
What characteristic do insects, centipedes, and millipedes share? Check all that apply
three pairs of legs
one pair of wings
one pair of antennae
two body sections
Answers
Answer:
One pair of antennae
Explanation:
They have more than three pairs of legs, centipedes and millipedes do not have wings, and they have more than two body sections.
Answer:
C is correct
Explanation:
How many different species are there?kings and kigdoms
Answers
Answer:
2 and 100 million
Because of the difficulties with both defining and tallying the total numbers of different species in the world, it is estimated that there are anywhere between 2 and 100 million different species.
Why do cells hold chromosomes?
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List the 4 main components that make up the blood
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Answer:
1. plasma
2 Red blood cells
3. White blood cells
4. Platelets
Answer:
Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets.
Explanation:
hope this helps! :)
if light is removed from this environment the fish will eventually die explain why
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ANSWER ASAP FOR BRAINLIST!!
part 1: is this a plant cell or animal cell?
part 2: what organelles are showing?
• cell membrane
• cell wall
• chloroplast
•nucleus
•mitochondria
•vacuole
(you can pick all more than one)
Answers
Answer:
pt 1 animal
Exp
Part 2 answers: it is showing the cell membrane, nucleus, mitochondria, vacuole
Your friend has a dog with fleas. She goes to the pet store and buys over-the-counter flea medicine. It does not work. So she goes to the veterinarian and explains that she just spent $80 on medicine that does not work. The vet casually says, “Oh yeah, that medicine does not work anymore.” Because you now understand natural selection, your friend asks you questions. Answer them with evidence.
- What do the resistant fleas do that the sensitive fleas do not?
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Answer:
Explanation:
The dog has fleas, but the medicine to counter this does not work. This means that the fleas have built up a resistance against the drug to ensure continued survival and reproductive success of these organisms. These resistant fleas may have existed in population as the population is always large but in small amounts. Thus, treatment with the drug will lead to the dieing out of the sensitive fleas and then leaving the resistant fleas with the favourable alleles to be selected for.
These favourable traits that have evolved against the drugs are then selected for and the organisms reproduce giving rise to more fleas with these favourable characteristics (being resistant to the drugs) such that their continued survival and reproductive is ensured compared to the sensitive fleas that die out.
how many electrons are in an atom of zirconium?
Answers
Answer:
There are 40 electrons and protons and 50 neutrons
Explanation:
In the gradualism model, species change _____ over time. Evidence for intermediate changes in species' characteristics is_____ . In the punctuated equilibrium model, changes can be rapid followed by periods ______of change. Evidence for intermediate changes in species' characteristics is _____
Answers
Answer:
In the gradualism model, species change slowly over time.
Evidence for intermediate changes in species' characteristics is anagenesis.
In the punctuated equilibrium model, changes can be rapid followed by periods of steady change.
Explanation:
Gradualism theory states that the evolutionary processes imply slow, uniform and gradual transformations. This type of evolutionary theory is referred to as anagenesis, where branches are not observed during the evolution of populations. On the other hand, the punctuated equilibrium theorizes that the evolutionary processes are characterized by sudden modifications that are followed by periods without changes. It is likely that both processes may drive evolution of species.
Answer:
gradually, present, little, absent.
Explanation:
I just did it on Savvas/Pearson and it was 100% correct.
A father has blond hair. A mother has black hair. Their three offspring have brown hair, blond hair, and red hair, respectively. Which pattern of inheritance could account for human hair color? Explain your answer.
Answers
Answer:
polygenic inheritance
Explanation:
The pattern of inheritance that could account for human hair color according to the illustration is polygenic inheritance.
In polygenic inheritance, multiple alleles (the alternate versions of the same genes) controls the trait for hair color. Individuals that inherit different combinations of alleles from the same parents will have different hair colors.
In this case, there are alleles that determines blond hairs, black hairs, brown hairs, and red hairs. All these alleles are alternate versions of the same gene. The father could be carrying blond/brown alleles and the mother is carrying black/red alleles or vice versa, their offspring will exhibit different hair color depending on which allele is dominant or recessive.
Drag each label to the correct location. Each label can be used more than once.
Identify the types of breezes and the areas of high and low pressure that cause them.
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Answer:
There are 4 types of breezes: land breeze, sea breeze, mountain breeze and valley breeze.
The breeze will originate from an area of high pressure and travel towards/blow in the direction of the area at a lower pressure.
In each case, the name of the breeze indicates where the breeze is blowing from. For instance, the land breeze will blow from the land (at high pressure) to the sea (at lower pressure). A mountain breeze will blow from mountain (at high pressure) towards the valley (at low pressure).
Hope that answers the question, have a great day!
How was bipedal locomotion important to hominin evolution?
Answers
Answer:
Bipedalism freed the hands so they could be used to cart food, make and use weapons and other advantages of freed hands. Bipedalism is a much more efficient way to walk and run and this fact is quantified. Bipedalism raised the early proto-human above the horizontal so he could see predators approaching. Bipedalism is a much more efficient design to cool down overheating bodies.
your welcome :)
3. Describe how and when Earth formed.
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Name the MAIN abiotic and biotic factors which affect prairie ecosystems
and describe their effects on those systems.
Answers
Answer:
Aboitic means non living and biotic means living.
Explanation:
For example a bench is aboitic because it is not living but once was. Something biotic would be grass because it is living presently.
which is “older” the chocolate chips or the cookie dough? (Remember: older means formed first)
I need help with that question I been struggling with it and having a hard time pls help me out and is due today
Answers
Answer:
The cookie dough.
Explanation:
The dough has to be made before you can put the chocolate chips in it.
Answer:
chocolate chip
Explanation:
Because the fish are now able to swim in deep water, their ___________ in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will _____________.
Answers
Answer: Predators, increase
Explanation:
Because the fish are now able to swim in deep water, their Predators in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will increase.
Predation is the biological term used to describe the interaction between organisms whereby one organism which is a Predator kills and devour another organism which is its prey.
In shallow waters, Fishes are more susceptible to predators like man, eagle etc who catch and kill them and because of that many of these fishes have acquired anti--predator adaptations to prevent being caught and killed and so are now able to swim in deep waters leading to the predators having less food. The fishes who can now swim deep into waters will increase the already populated deepwater and will cause an increase in competition for the fishes that eat same type of food with the new fishes
Help 20 points !
*This question is of 4 marks*
So please answer long.
Q. Describe the double circulation in human beings.
Answers
Answer:Double circulation has two components, pulmonary circulation and systemic circulation. Pulmonary Circulation : It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters the righ auricle, passes into righ ventricle which pumps it into pulmonary arch,...
Explanation:
Answer:
During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system more efficient and helps in maintaining constant body temperature. During a single cycle, the blood goes twice in the heart. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.
Explanation:
Hopefully this helps:)
What are some types of biotechnology??
Answers
Medical Biotechnology. Medical biotechnology is the use of living cells and other cell materials for the purpose of bettering the health of humans. ...
Agricultural Biotechnology. ...
Nutrient Supplementation. ...
Abiotic Stress Resistance. ...
Industrial Biotechnology. ...
Strength Fibres. ...
Biofuels. ...
Healthcare.
Answer and Explanation:
There are a few different types of biotechnology.
One is medical biotech. Essentially, this branch is used to help improve the wellbeings and helaths of people. It involves a lot of DNA in helping to find cures for various diseases. Some examples of advancements in this field are vaccines and antibiotics.
Another is agricultural biotech. In the agriculture industry, farmers are continuously searching for ways to increase crop yield and quality, which delves into the topic of genetic modification and engineering. For example, scientists are breeding certain plants or adding certain genes to make offspring that is hardier and more pest-resistant.
Those are two main types of biotechnology.
In which of the following organizations was the United States NEVER a member or contributor?
Answers
Answer:
I got no idea
Explanation:
Answer:
the answer is b or league of nation
Explanation:
brainly plz
A group of environmentalists was discussing the benefits and drawbacks associated with using fossil fuels. Which argument best fits the conversation?
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Answer:
Fossil fuels are cheaper then alternative forms of energy
Explanation:
took the test
The human
population growth
curve looks like
a -curve
population.
Please help!!!
Answers
Answer:
C
Explanation:
It shows a j looking black line.
Answer:
i think its b good luck hope u get i right
Explanation:
what are the features of common to all cell
Answers
Answer:
Nucleus
Explanation:
every cell has a nucleus kind of like a factory has a ceo, does this make sense to you?
