Describe the path that air takes as it enters and passes through the human respiratory system
Answer: The pathway of air in the respiratory system starts with the external organs of the nose and mouth. Nose: Air is inhaled through the nostrils (and sometimes through the mouth) where it is filtered by the hairs and cilia to remove dust particles and moistened. The nasal cavity also moderates the temperature of the inhaled air.
Explanation:
The genetic code for a human is contained in ______________ chromosomes.
Answer:
The genetic code for a human is contained in ___DNA___________ chromosomes.
Explanation:
Answer:
dna
Explanation:
What statement is true regarding active transport
Answer:
Substances can move from areas of low concentration to high concentration.
Explanation:
For the first one, substances CAN move in and out of cells in an active transport.
As for the second one, active transports do require energy. That is what makes them "active" and sets them apart from passive transports which don't require energy.
Lastly, substances can move across a membrane regardless of if they are water soluble (such as lipids, or fats that the cell does not use. Think of it as a way for the cell to eat, drink, and defecate or remove waste.)
to name the compound written as CrBr2, you would write
Answer:
Chromium(II) bromide
Explanation:
Answer:
chromium bromide
Explanation:
it is a halide
What two environmental factors influence the shape of proteins?
What impact does this have on the protein's ability to function?
Be sure to answer both parts of the question in complete sentences.
PLEASE DONT COPY AND PASTE FROM GOOGLE
Answer:
The two environmental factors are temperature and pH and with that, denaturation occurs. In other words, temperature and pH would affect the protein structure, which it would change their shape and possibly it won't perform its normal function.
Explanation:
The model illustrates a process by which a substance is taken up by a cell. Which statements describe the process? Select the correct answer. a. The cell wall shown in the model is changed into a cell membrane. b. The process shown in the model requires energy from the cell. c. The cell membrane in the model remains intact throughout the process. d. The model shows the process of facilitated diffusion.
Answer:
The process shown in the model requires energy from the cell.
Explanation:
Active transport refers to the movement of materials across the cell membrane against concentration gradient.
The cell membrane remains intact. However, energy is required from within the cell to move materials into the cell against concentration gradient, hence the answer.
Answer: It's A I took the quiz and I chose A. I got it right.
Explanation:
Whats the difference between bacteria cells, and blood cells?
Answer:
recent study out of the Weizmann Institute in Israel states that the number of bacteria may actually be very similar to the number of human cells in the body.
While this results in about 1.3 bacterial cell per human cell, the numbers may vary significantly from person to person and could change significantly with each defecation. They estimate that the range of bacterial cells goes from about 30 to 50 trillion in each individual. Women may also have a higher ratio of bacterial cells than human cells because they have fewer human cells, specifically red blood cells.
Chose ALL the choices that are true about exponential growth: a Rapid (fast) period of growth b Has carrying capacity c "S" curve d "J" curve e Takes place when there are lots of resources ex: food, space f Takes place when there are limited resources ex: food, space
Answer:
a, d, and e
Explanation:
The exponential growth is a period characterized by rapid growth as a result of the availability of unlimited resources for the use of the population. Once the population spends a short period getting acclimatized to their environment, a period of rapid growth follows that is devoid of any limitation and thus, the growth curve forms a 'J' shape. This type of growth has no carrying capacity that limits its growth and may not be possible in real life where resources are limited.
The correct options are a, d, and e.
Find the acceleration if the change in velocity is 5 m/s and the time is 10 seconds
Answer:
i think that
Explanation:
solution
given
velocity (v) = 5m/s
time(t) = 10 sec
acceleration (a) = ?
By using formula,
a = v÷t
a= 5÷10
a = 2m/sec
Answer:
0.5 m/s
Explanation:
acceleration (a) = speed (s) / time (t)
a = 5/10
6. The jelly-like area between the nucleus and the cell membrane is called the cytoplasm. It helps organelles move throughout the cell.i) What company or place does the cytoplasm resemble in a Cell City? ii)Why do you think so? i)
Answer: cytoplasm is the jelly like substance in between all the other cell organelles
2. Compared to many other liquids, water has a high heat of vaporization, which means a relatively large amount
of heat must be added to the water before the water molecules are moving fast enough to escape the surface as a
gas, Which of the following explains why water has a high heat of vaporization?
A. Adding heat to the water causes the molecules to move around, and the motion keeps pushing
them back below the water's surface.
B. As water molecules heat up they tend to form more hydrogen bonds with each other, making it
difficult for any of the molecules to vaporize.
C. Water molecules have a relatively high molecular weight compared to other molecules, so more
energy is needed for the water molecules to vaporize.
D. Enough heat must be added to water molecules' hydrogen bonds to break the bonds and provide
the molecules enough energy to escape the surface.
Answer:
you
Explanation:
should just skip this
HELP PLEASE! WILL GIVE BRAINLY! Describes a weak, electromagnetic bond between polar molecules. A. Adhesion b. Hydrogen bond. C. Polar covalent bond. D.Ionic bond
Option C, polar covalent bond
It's between polar compounds
The weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
What is covalent bond?A covalent bond is defined as a chemical bond that includes the sharing of electron pair between atoms.
The pair of electrons are know as bonding pairs and the stable balance of attractive and repulsive forces between atoms.
The properties of covalent bond are mentioned below:
The covalent compounds have low melting points and boiling points.
The covalent compounds do not contain electricity.The covalent compounds are having lower enthalpies of vaporization and fusion.
The covalent compounds are easily catches fire and are more flammable than ionic compounds.The covalent compounds are very soft and flexible.
The physical properties of covalent compounds are that they have lower melting points and electrical conductivity.
Therefore, the weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
Learn more about covalent bond here:
https://brainly.com/question/19382448
#SPJ2
Which food would be helpful in increasing fiber and regularly clearing the digestive tract?
1. oranges
2. broccoli
3. ginger
4. mint
Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
What is food?Food is any substances that is consumed by a person and it releases one nutrients or the other and supplies energy to the body, build muscles, fight against diseases,renew strength, , aid metabolism and essential living of a man.
Therefore, Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
Learn more about food below.
https://brainly.com/question/25884013
#SPJ2
Nuclear reactions result in tremendous amounts of
a. uranium.
b. energy
C. fission.
d.mass.
Please select the best answer from the choices provided
Answer: b. energy
Explanation:
what happens when fluid is heated
What is physical evidence?
ОА.
matter
OB.
elements
OC.
atoms
OD.
compounds
O E.
mixtures
Answer:
Its A. Matter
Explanation:
I took the test
Imagine that you are given 25 germinating pea seeds that have been placed in 5M hydrochloric acid for five minutes. You place these seeds after you rinse them off, in a respirometer at the end of the five minutes and collect data. Predict the rate of oxygen consumption for these seeds and explain your reasoning.
Answer:
In the respirometer, it will be present no significant values of oxygen from the respiration process. The acid can denature proteins in a non-functional shape.
Explanation:
The pH of the solution will be considerably low in order to the proteins to work normally. In this case, the polarization of sites in the protein will cause a completely denaturation.
A normal pH is essencial for the best working coefficient of enzymes an proteins in general as well as temperature.
The first to get the answer correct get a brainlest
What is the butterfly effect
Why doesn’t Jack take the conch when he invades the beach camp?
Answer:
I don't understand what you are asking for
Environmental scientists studies the impact of a newly discovered bacteria on oil. If the bacteria ingests oil they can possible be utilized to clean up oil spills. What is the depended variable?
why do we need glucose
Answer:
Our brain wouldn't be able to work because it's the main source of fuel for our brains.
Explanation:
because it's the main source of fuel for our brains.
What percentage of North American frogs and toads are in trouble?
Answer:
The decline rate ranges from 2.7 to 3.79
6. Which of the following are "Organic" molecules?
CH4
CO2
C6H1206
H20
Carbohydrates
DNA
NH4
02
Amino Acids
Enzymes
Lipds
Answer:
CH4
CO2
C6H1206
Carbohydrates
DNA
Amino acids
enzymes
lipids
Explanation:
organic means they contain carbon and all of these above contain carbon
Lipids commonly provide ______ energy to the body.
Answer:
Most of the energy required by the human body is provided by carbohydrates and lipids. As discussed in Chapter 3 "Carbohydrates", glucose is stored in the body as glycogen. While glycogen provides a ready source of energy, lipids primarily function as an energy reserve.Aug 13, 2020
Explanation:
What type of organism can produce energy from the sunlight?
A. Heterotroph
B. Omnivore
C. Carnivore
D. Autotroph
Answer:
autotrophs
Explanation:
Organisms that can produce energy from sunlight are called autotrophs.
Hope this helped <3
How are embryonic stem cells different from other types of stem cells?
The difference between embryonic stem cell and other types of stem cells are :
Embryonic stem cell replicate indefinitely Embryonic stem cell is pluripotentThere are about 200 different types of cells present in the human body and the embryonic stem cell is different from other adult cells because it has the ability to differentiate into the ( 3 ) primary germ layers ( i.e. pluripotency ) and also they can replicate indefinitely unlike other cells that can only replicate itself a limited number of times.
Hence we can conclude that the difference between embryonic stem cell and other types of stem cell are Embryonic stem cell replicate indefinitely and Embryonic stem cells are pluripotent.
Learn more about embryonic stem cell : https://brainly.com/question/2139588
How would you expand this model to include the effects of fishing on this population?
If the herbivore population in an ecosystem increased what would most likely happen to the size of the carnivore population
Answer:
the carnivore population(s) would increase because their amount of food would increase also
Explanation:
Answer:
Possibly increase
Explanation:
Since there would be an increase of the herbivore population, the carnivores would have more to eat providing more food for their young.
given the following DNA strand which of the following is it’s complementary MRNA? GGACTGATT
A. C C U G A C U A A
B. C C T G A C T A A
C. G G A C T G A T T
D. T T A G T C A G G
The following DNA strand "GGACTGATT" has the complementary mRNA strand "CCUGACUAA". Thus, the correct option is A.
What is mRNA?An mRNA is a type of RNA which is found inside cells. mRNA is also known as messenger RNA. The mRNA molecules carry genetic information which is required to make proteins in the cell. They carry the information from DNA in the nucleus of the cell to the cytoplasm where the proteins are synthesized.
The mRNA synthesized complementary to the sequence of DNA strand can be determined. As A base pairs with U and vice versa and C base pairs with G and vice versa. Thus, the sequence of mRNA synthesized from the DNA sequence "GGACTGATT" will be "CCUGACUAA".
Therefore, the correct option is A.
Learn more about mRNA here:
https://brainly.com/question/21312423
#SPJ2
Which of the following is an observation?
a. You record the air temperature every day for a week.
b. You propose that a cold front is approaching.
c. You hypothesize that the temperature will increase tomorrow.
d. You conclude that the season is changing.
Answer:
a. You record the air temperature every day for a week.
Explanation:
Recording air temperature every day for a week can be classified as making an observation.
Observation is a part of the scientific method. It is a basically a way of collecting data.
During observation, our senses can be used or instruments. Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses. A good scientist is a keen observer. Making a record of air temperature usually by using a thermometer is a way of carrying out observation.When you record air temperature, you are making an observation.