do you think your heart plays the biggest role in the process of getting your blood become rich in oxygen and transporting materials gases and other molecules to and from the different parts of the body?
WHY DO YOU THINK SO?
Yes. Absolutely. Without heart, no one can live. It helps in pumping of oxygen rich blood to all body cells and tissues. It also helps in transportation of various materials like potassium, sodium, calcium etc. in our body. The main function is that it helps in excretion of wastes.
Since blood is liquid and heart pumps it, the waste materials like CO2, gets diffused and becomes impure blood. Then it is taken to lungs for purification and again reused.
So, heart actually helps us indirectly in many ways.
Hope it helps you.. pls mark brainliest if it helps you
Explain how increasing the temperature increases the rate of the reaction
Explanation:
The more the temp rises the more energy it generates. In a reaction there are molecules in which they bounce around and collide in order to form the reaction. With more energy being introduced the molecules will speed up and collide more often than what the speed was before which directly relates to why the rate of a reaction is increasing.
Which animal is often used to model human body systems?
pig
rabbit
cow
sheep
Answer:
Pig
Explanation:
Rabbit is often used to model human body systems
Recent advancements in mammalian and rabbit genomic studies have reaffirmed the rabbit as a prototype genetic system. They have genomes that are almost identical in size and are thought to have split 80 million years ago from a common origin.
Rabbits have counterparts to almost all human genes.
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4.010
Mutations can be caused by
a. radiation
b. chemicals
C. both a and b
Answer:
Mutations can be caused by radiation
if my answer helps you than mark me as brainliest.
(Its actually Physical Science)
To create a molecular model a student will use blue spheres to represent nitrogen (N) and white spheres to represent hydrogen (H). which option correctly describes a model of ammonia, NH3?
A. three blue spheres and three white spheres
B. one blue sphere and three white spheres
C. three blue spheres and one white sphere
D. one blue sphere and one white sphere
A molecular model is a three dimensional representation of a molecule that aids conceptualization of the actual nature of the molecule.
The correct answer is option B: one blue sphere and three white spheres
A molecular model helps us to see something close to what a molecule actually looks like in a three dimensional way.
The essence of molecular models is to aid conceptualization of details about arrangement of atoms in a molecule.
Since nitrogen is represented with blue balls and hydrogen is represented with white balls, it follows that a properly prepared model consists of one blue sphere and three white spheres.
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Why was Mendel's work not accepted at the time?
Underground mining removes minerals from deep in the earth. Miners use blasting to separate the "waste" from the mineral deposit. Which statement best describes
an environmental consequence of this process?
O Underground mining activities often cause noise pollution
O Acid mine drainage kills plants and animals around the mine.
O High salinity of wastewater reduces soil fertility and vegetation
O Soil is removed by the force and pressure of the drilling process.
Answer:
Acid mine drainage kills plants and animals
Explanation:
took the quiz :)
The correct answer as to the environmental consequence of using blasting to separate wastes from mineral deposit is noise pollution. The statement that best describe the process, therefore, would be that underground mining activities often cause noise pollution.
Blasting simply means to break something apart or to blow up something. When blasting is associated with mining, it usually involves the use of explosives. These explosives make loud noise when they are used in blasting.
Hence, blasting can be said to be a source of noise pollution to those staying close to the mining area.
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Which of the following are measurable? (Select all that apply)
✓ How often a plant is watered
✓ How much sunlight a plant receives
Seeing the pretty leaves on a plant
The actual number of new leaves on a plant
Answer:
a
Explanation:
well of you use a cup to give a plant water you can measure how much it drinks
The measurable factors are A) How often a plant is watered, B) How much sunlight a plant receives, D) The actual number of new leaves on a plant.
Options (A) (B) & (D) are correct.
Measurable factors are those that can be quantified or expressed numerically. A) The frequency of watering can be counted and tracked over time. B) Sunlight can be measured in terms of intensity, duration, or light levels. C) "Seeing pretty leaves" is subjective and not quantifiable.
D) The actual number of new leaves is a concrete count, making it measurable. When studying or managing plants, it's essential to focus on quantifiable aspects, like watering frequency, sunlight exposure, and counts of observable changes, for accurate analysis and decision-making.
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The complete question is:
Which of the following are measurable? (Select all that apply)
A) How often a plant is watered
B) How much sunlight a plant receives
C) Seeing the pretty leaves on a plant
D) The actual number of new leaves on a plant
what is biological classification? explain it
Answer:
Biological classification is the process by which scientists group living organisms. Organisms are classified based on how similar they are. Historically, similarity was determined by examining the physical characteristics of an organism but modern classification uses a variety of techniques including genetic analysis. I hope this helps you
What is the function of of pseudopod?
How is science important in our daily lives?
Answer:
by it helps to make our living comfortable. it help to know the accurate weight of the quantity. it helps to know about the earth, solar system, structures of earth, etc.
The blood pressure of a person is 140/100 mm of Hg, what does it mean?
Answer: When is blood pressure considered high? Normal blood pressure is under 120/80. From 120/80 to 139/89 is pre-hypertension. The threshold for high blood pressure is 140/90, while anything over 180/110 is hypertensive crisis – an emergency.
Explanation:
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Strength :
BTS is my strength my love my everything
Transport of food in higher plants takes place through?
A.Tracheids
B.Companion cells
C.Sieve elements
D.Vessels
Answer:
the correct answer is phloem it is not there
Answer:
In the vessels because pholem and xylem tissues are vessels
Milk of magnesia, which is magnesium hydroxide, is used to cure stomach acidity. What is the mode of action of this drug?
A.
Milk of magnesia is an acid that replaces the hydrochloric acid present in the stomach, thus relieving acidity.
B.
Milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity.
C.
Milk of magnesia is a salt that neutralizes the excess acid present in the stomach, thus relieving acidity.
Answer: B) Milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity.
Explanation:
Milk of magnesia, which is magnesium hydroxide, is used to cure stomach acidity. The mode of action of this drug is that milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity. The answer is letter B.
In a randomized trial, scientist try to make sure that there is only one difference between the two groups. What do we call all the things that are the SAME Between the two groups?
A. Predictions
B. Controls
C. Constant
D. Variables
Answer:
constant
Explanation:
the word 'Constant' means 'again' or 'same'
three examples of ways in which biology can help inform everyday decisions
I need a Hashtag relating to the cell wall
A scientist is studying the population of a particular species of beetle in an ecosystem. The beetles currently have an estimated population of 11,500 individuals on a wildlife preserve of 115 hectares. (One hectare is equal to 2.47 acres of land.) The scientist calculates the carrying capacity at 14,600 individuals.
PART B
What will likely happen to the population of these beetles during the next year if the resource level stays the same? Explain your answer.
PART C
These beetles have a uniform distribution. In year 1, how many beetles are there per hectare? How many beetles per hectare were there in the year the beetles reached carrying capacity? Round up or down to the nearest whole number, if necessary.
PART D
During the year the beetles reached carrying capacity, a flood in the region decreased the population to about 77 beetles per hectare. What is the total estimated population of the beetles after this disaster? What percentage of the carrying capacity is the population now?
PART E
Over a period of time, the beetles once again reached carrying capacity and sustained it for many years. However, pollution from a nearby factory leaked into the ecosystem, making 55 hectares of the land uninhabitable to the beetles. Predict how the estimated carrying capacity will change and explain your reasoning for your estimation.
Need it by the 30th plz!!
Answer:
hope it is help full
Explanation:
Mark me a brainlist
What is the answer to the question 3
Answer:
D. the natural resources available in an ecosystem.
Explanation:
Carrying capacity can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebounds.
(argumanta la importancia del desarrollo cientifico en el manejo del agua)
ayuda porfa :c
Answer:
La gestión del agua es importante ya que ayuda a determinar las expectativas futuras de riego. La gestión del agua es la gestión de los recursos hídricos bajo políticas y regulaciones establecidas. El agua, que alguna vez fue un recurso natural abundante, se está convirtiendo en un bien más valioso debido a las sequías y el uso excesivo.
Explanation:
La gestión de los recursos hídricos es un tema muy importante desde varios ángulos, como el desarrollo de masas de agua para el futuro, la protección de las masas de agua disponibles de la contaminación y la sobreexplotación y la prevención de disputas. Una cuestión primordial es el agua: su disponibilidad, calidad y gestión.
Aquí hermano te ayudé ^-^ ;) :)
When you make a decision to scratch your nose or pick up your pencil from the desk, which part of your nervous system makes that happen?
o Autonomic
Peripheral
O Sympathetic
O Parasympathetic
Conoces ecosistemas con sucesión y secundaria en el país?
Answer:
Image result for Conoces ecosistemas con sucesión y secundaria en el país?
En la sucesión primaria la roca recién formada o recién expuesta es colonizada por primera vez por seres vivos. En la sucesión secundaria, un área anteriormente ocupada por seres vivos se ve alterada o afectada, y luego se vuelve a colonizar después de la perturbación.
Explanation:
Image result
La sucesión primaria es aquella que se desarrolla en un biotipo virgen, es decir, una zona carente de una comunidad preexistente, como ocurre en las dunas, nuevas islas volcánicas, retroceso de glaciares,
Q: Predict the final masses of the following dialysis tubes.
Dialysis tube is semi permeable membrane which is made of cellulose acetate. This tube is used during the dialysis process.
The initial mass and final mass of dialysis tube will differ.
Initial Mass Final Mass Difference is mass
0 M Sucrose 29.13 g 29.93 g 0.8 g
0.2 M Sucrose 28.37 g 29.97 g 1.6 g
0.4 M Sucrose 30.84 g 33.04 g 2.2 g
0.6 M Sucrose 27.56 g 35.36 g 7.8 g
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Why is technical writing important in science?
Please help!
How is the growth of the roots affected by the auxin concentration at which stems grow the most?
Explanation:
Auxins change the rates of elongation in plant cells and control growth of stems and roots. Stems and roots respond differently to high concentrations of auxins: cells in stems grow more. cells in roots grow less
how does microbes useful for treating wastewater sewage
Answer:
Microbes useful for treating wastewater sewage
to reduce the volume of sludge and produce methane gas from it.
Hope answer help you
Help for brainlest plz help
Pls help me with this one ASAP (I took a picture of the questions)
In which of these forms does acid precipitation reach the surfaces of Earth?