A body system is a group of organs that work together to keep the organism alive. How does the nervous system help to keep an organism alive?
Un tanque cilindrico de gasolina tiene 3 m de altura y 1.2 m de diámetro. ¿Cuántos kilogramos de gasolina es capaz de almacenar el tanque?
Plan: Para calcular la masa, primero debemos determinar el volumen del cilindro circular
derecho (V = irr2h), donde r = jD = 0.60 m. Por tanto, la masa se determina a partir de
la ecuación (15.1).
Solución: El volumen es
V = 7rr2h = 7t(0.6 m)2(3 m); V = 3.39 m3
Al resolver la ecuación de la densidad para m tenemos
m = pV = (680 kg/m3)(3.39 m3); m = 2310 kg
Otro método para indicar las densidades de las sustancias es la comparación su densidad
con la densidad del agua. La relación de la densidad de la sustancia con respecto a la del agua
se vuelve entonces la gravedad específica, la cual es una cantidad sin dimensiones. Si un
objeto tiene el doble de densidad que el agua, su gravedad específica es 2; un objeto que tiene
una tercera parte de densidad que el agua tiene una densidad relativa de 1/3.
La gravedad específica de una sustancia se define como la razón de su densidad con respecto a la densidad del agua a 4°C (1 000 k g /m 3).
Un mejor nombre para esta cantidad es densidad relativa, pero el término gravedad específica
se usa más ampliamente.
Answer:
HOLA, como estas?
Explanation:
Answer:
Vol+=+pi%2Ar%5E2%2Ah r = 0,6, h = 3
Masa+=+Vol%2A0,7 kg
Explanation:
How is efficiency related to systems?
Answer:
The efficiency indicates the manner in which the inputs are used by the system. Being efficient means the system uses inputs in a `right' way. If the input-output ratio is adverse, we say that the system is inefficient though it produces the desired output.
Hope this helps! :)
what sequence of amino acids does the following chain of mRNA code for?
AUG GUA UCU GCA UGA CGU AGC GGU GAA UAG
Answer:
Met-Val-Ser-Ala-TERM(stop)
Explanation:
Which scenario describes the damage caused by a tornado?
Answer:
destroy large buildings, uproot trees and hurl vehicles hundreds of yards. They can also drive straw into trees. Damage paths can be in excess of one mile wide to 50 miles long.
Explanation:
Runoff from farmland into a river is an example of what???
Answer:
It would be a form of pollution due to the runoff of chemicals which harm the marine life while helping with the growth of algea more suitably known as
EUTROPHICATION
Explanation:
[a] if a tightly scaled syringe containing 20 cubic centimetre of air is placed in hot water for some time and then removed what will happen to the volume of air when the syringe is placed in hot water? [ii]explain your answer in terms of particle arrangement and temperature change [iii]name the process described by the change above [b] what will happen to the volume of air after the syringe is removed hot water? [i]explain your answer in terms of particle arrangement and temperature change [ii]name the process described by the change above
Answer:
Volume of air increases.
Explanation:
The volume of air increases in the syringe when the syringe is placed in hot water because the volume of air increases when the temperature is increases. According to Charles's Law which states that, at a fixed pressure, the volume of a given amount of gas is directly proportional to its temperature so if there is increase in temperature so the the volume of gas present in a container or syringe increases and vice versa.
Una carga de 50 N unida a un resorte que cuelga verticalmente estira el resorte 5cm. El resorte se coloca ahora horizontalmente sobre una masa y se estira 11cm.
Answer:
-110 N
Explanation:
Una carga de 50 N unida a un resorte que cuelga verticalmente estira el resorte 5cm. El resorte se coloca ahora horizontalmente sobre una masa y se estira 11cm. ¿Qué fuerza se requiere para estirar ese resorte en esa cantidad?
Solution:
La constante de resorte (k) es la relación entre la fuerza (F) y la extensión (d) como resultado de la fuerza aplicada, por lo tanto:
k = F / d
Dado que F = 50 N, d = 5 cm = 0.05 m. Por eso:
k = F / d = 50 N / 0.05 = 1000 N / m
La fuerza (F) requerida para provocar un estiramiento de 11 cm se da como:
F = -kx
x = 11 cm = 0,11 m. Por eso:
F = -kx = -1000 * 0,11 = -110 N
El signo negativo significa que el objeto se tira hacia el resorte.
1. What is a limiting factor in relation to an ecosystem
2. What does carrying capacity men for a population?
Answer:
1 A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. ... Limiting factors are usually expressed as a lack of a particular resource.
2 Carrying capacity can be defined as a species' average population size in a particular habitat. ... If these needs are not met, the population will decrease until the resource rebounds. Explore carrying capacity with these curated classroom resources.
Hope this is fine for youGive two land features that can form because of deflation.
Explanation:
Deflation can form certain land features. It can pro- duce desert pavement, which is a surface made of peb- bles and small, broken rocks. In some places, the wind can scoop out small, bowl-shaped areas in sediment on the ground. These areas are called deflation hollows.
Answer:
Deflation can form certain land features. It can pro- duce desert pavement, which is a surface made of peb- bles and small, broken rocks. In some places, the wind can scoop out small, bowl-shaped areas in sediment on the ground. These areas are called deflation hollows.
Explanation:
PLs, help me with this question
Answer:
Amino acids
Explanation:
In humans, widow's peak (A) is dominant over a continuous hairline (a), and short fingers (B) are dominant over long fingers (b). Two individuals with widow's peak and short fingers have a child with continuous hairline and long fingers. Determine the genotypes of the parents.
Answer:
Both parents are heterozygous for the traits and exhibit the dominant phenotype → AaBb
Explanation:
Available data:
widow's peak (A) is dominant over a continuous hairline (a)short fingers (B) are dominant over long fingers (b)Cross: Two individuals with widow's peak and short fingersF1) a child with continuous hairline and long fingersGenotypes Phenotypes
AA and Aa individuals with widow's peakaa individuals with no widow's peakBB and Bb shorted-fingered individualsbb longed-fingered individualsCross:
Parentals) A-B- x A-B-
Note: the - symbol represents either a dominant or recessive allele.
F1) child with continuous hairline and long fingers → aabb
Each parent provided one allele for each trait to the child. So the child inherited one recessive allele a and one recessive allele b from EACH parent. The fact that both parents could provide one recessive allele to the child for each character, indicates that both parents are heterozygous for the trait. It is the only way of having a child who expresses the double recessive trait.
Parentals genotypes → AaBb x AaBbChild → aabbIn mice, albinism (b) is recessive to normal brown coloration (B). When an albino female was crossed with a brown male, they produced 2 brown offspring and 2 albino offspring. What is the genotype of the brown male parent?
Answer:
Bb is his genotype. He passed his dominant allele 50% of the time and his resessive allele 50% of the time.
Alina notices that when she shines a desk lamp on a mirror, nothing happens.When she shines an infrared lamp on the mirror, the mirror starts to get warmer.Why does light from the infrared lamp warm the mirror when light from the desk lamp does not?
Answer:
Because the infrared lamp gives off a type of light that the desk lamp does not, and the mirror can only take in the energy from the infrared light.
Explanation:
Answer:
Explanation:
Infrared is used for incubators when a chicken egg is about to hatch. It is the electrical frequency of electromagnetic radiation the provides heat.
Because heat is produced electrically it can be controlled with something resembling a dimmer switch (the kind of switch that dims lights in romantic restaurants). That means that the temperature can be set to the hen's body temperature.
Infrared is just below visible light.
how many molecules are in 2fe203
Answer:
2 molecules.
Explanation:
In 2Fe203, there are two molecules because Fe203 is a molecule which is made up of two atoms i.e. iron and oxygen atom. In one molecules of Fe203, there are 5 atoms so in 2 molecules of Fe203, there are 10 atoms. The digit present in front or to the left side shows number of molecules so that's why we can say that there are only two molecules in 2Fe203. The name of this molecule is iron oxide.
The natural extinction of a predator can negatively affect the
environment by leading to
unrestricted prey species growth.
major climate change
harmful human pollution.
increased sediment deposits.
Answer: A
Explanation:
With a decrease in predators there is no challenge for the prey and population growth can become uncontrollable
Hope this helps
A scientist studying fossils in undisturbed layers of rock identified a species that appeared to not have changed a lot over the years. Which observation would have most likely led him to this conclusion?
Answer:
After studying the fossil, the person can figure out which animal it might be of the records of animals we know of, by taking bone tests, etc. they can see the DNA of the animal. The bone structure can show the animal looked different, or even could figure that out through the DNA. During the years, it could've mated with other animals creating an updated breed, or simply just changing to fit into new environments aka evolving
Explanation:
Hope that helps
The image below represents two waves X and Y, traveling to the same medium at the same speed how are the two waves different?
Answer: D is right
Explanation: It seems both waves have same wavelength.
Because speed = wavelength · frequency (v = λf) and
f = v/λ, so frequency is same. Because period T = 1/ frequency, also periods are same. Wave Y has higher amplidude and its energy is greater.
Answer:
D
Explanation:
just had it on study island
Question 2: Case 2
A young woman who was adopted at birth, comes into your office asking you to help her identify her birth father. She
already knows that the blood type of her birth mother is A positive. She knows her birth father is one of three men who are
willing to help in her search. Your first step is to do a blood test on the daughter. Your results show that she is type AB
negative. You make some phone calls and have the three possible fathers come in to give a blood sample. Here are the
results:
• Man #1 - O negative
• Man #2 - B negative
• Man #3 - AB positive
From this information, can you conclude who the father is? Is there anyone you can exclude? What tests could you do further
to confirm your analysis about who the father is?
Answer:
man3
Explanation:
Select the correct answer.
There was an overuse of fertilizers in William's farm. This led to the destruction of the crops, and William incurred huge losses. Which
management function was neglected in this process?
OA. organizing
OB. staffing
OC. planning
OD directing
O E. controlling
Answer:
OB. staffing
What is the xylem? And what is the function of the xylem for grade 8's? (Please make it simplified)
10. What adaptations allow polar bears to walk on ice without slipping?
O Only Pilli
O Only long claws
Pilli and long claws
Papillae and long claws
describe the following Characteristics of Life display organization growth development requires energy reproduction respond to stimuli and maintains homeostasis
Answer:
These characteristics of Life are very important.
Explanation:
Organization growth, development requires energy, reproduction respond to stimuli and maintains homeostasis are the characteristics of Life. These characteristics are very important for survival and for a good life. In the absence of these characteristics, the organisms will die. Energy is required for the growth and development of an organisms. Equilibrium is maintained in the body of organism by maintaining homeostasis in the body which resist change in the body.
Name the two types of leucocytes that are phagocytic.
NO SPAM PLS ...
Answer:
In humans, and in vertebrates generally, the most-effective phagocytic cells are two kinds of white blood cells: the macrophages (large phagocytic cells) and the neutrophils (a type of granulocyte).
In the blood, two types of white blood cells, neutrophilic leukocytes (microphages) and monocytes (macrophages), are phagocytic. Neutrophils are small, granular leukocytes that quickly appear at the site of a wound and ingest bacteria.
True or falseThe study of where organisms live and how they got to specific places is called Biodiversity .
Answer:
False
Explanation:
Correct answer is biogeography
Explanation:
Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans.What would happen to the darker colored moths if the forest was light colored?
Answer:
Dark motgs live longer in a dark forest so they had more time to breed all living things respond to natural selection.
What is a type of so without a membrane bound and useless and without membrane-bound organelles
A. Eukaryotic cell
B. Plant cell
C. Elements
D. Prokaryotic cells
Answer:
Prokaryotic cells don't have a membrane bound organelle
Explanation:
Prokaryotic cells has no nucleus as well as no membrane bound organelle. To remeber this, Pro rhymes with NO. Meaning NO nucleus NO membrane but it do have ribosomes,cytoplasm, and etc.
This is the answer if thats what you are reffering too.
What are the reactants in
photosynthesis?
Explanation:
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
what organ only has chemical change
Why is the genetic code common to all organisms!
Answer:
Why Is DNA Considered a Universal Genetic Code? DNA is considered a universal genetic code because every known living organism has genes made of DNA. ... All organisms also use DNA to transcribe RNA, and then they translate that RNA into proteins. Every living organism uses that same system.
Explanation:
The genetic code is universal because it is the same among all organisms. Replication is the process of copying a molecule of DNA. Transcription is the process of converting a specific sequence of DNA into RNA.
Protein-encoding genes specify the sequences of amino acids, which are the building blocks of proteins. In turn, proteins are responsible for orchestrating nearly every function of the cell. Both protein-encoding genes and the proteins that are their gene products are absolutely essential to life as we know it.