Answer:
D. a cause that directly leads to a normal condition without interference
Explanation:
Direct contact infections spread when disease-causing microorganisms pass from the infected person to the healthy person via direct physical contact with blood or body fluids.
Which of the following correctly describes the 3rd stage of the cardiac cycle?
Answer:
c. the ventricles are relaxed and fill with blood is correct
Explanation:
Con đường vận chuyển nước vậy ông chất khoáng qua thành tế bào sang bào ở thực vật có đặc điểm gì
Answer:
In plants, minerals and water are transported through the xylem cells from the soil to the leaves. The xylem cells of the stem, roots, and leaves are interconnected forming a conducting channel reaching all plant parts. Thus, there is continuous water movement into the xylem.
Bài giải:
Ở thực vật, các chất khoáng và nước được vận chuyển qua các tế bào xylem từ đất đến lá. Các tế bào xylem của thân, rễ và lá liên kết với nhau tạo thành một kênh dẫn đến tất cả các bộ phận của cây. Do đó, có sự chuyển động liên tục của nước vào xylem.
Hope This Helps!
Hi vọng điêu nay co ich!
escribe los pasos que le hacen falta al progreso productivo
Answer:
sí
Hablo español con fluidez. ¿Con qué necesitas ayuda?
Explanation:
name the three dimensional shape of the dna molecule
Answer:
The double helix
Explanation:
Question 6 of 33
Which of these situations could produce a population crash?
A. Increase in the availability of food
O B. Volcanic eruption
O C. Low death rate
O D. High birthrate
SUBMIT
The body does not break down proteins to make ATP unless nothing else is available because the amino acids in proteins are needed to build new proteins more than they are needed for energy
True or False
Answer:
I think it's false
this layer of the leaf is found just below the ""skin""
Spongy Mesophyll
Palisade Mesophyll
Phloma
Stomata
what is the main substrate in the first step of glycolysis?
Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
River deltas are?
formed by deposition
created by seafloor spreading caused by the movement of tectonic plates
areas of infertile, rocky soil
They are formed by desposition
you can always tell the genotype by looking at the phenotype. true or false?
approximately how many nucleosomes are required to organize this region of dna into the 10nm fiber structure?
Answer:
Answer is 512 nucleosomes.
Explanation:
DNA is the genetic material that is compressed and stored in the nucleus of the cell. Approximately 512 nucleosomes would be required to organize 92,672 base pairs long region.
What are nucleosomes?Nucleosomes are the packaging units of the genetic material that comprises the DNA segments wrapped along with the histone proteins in a compacted manner. This allows the genetic material to be condensed into smaller volumes.
Given,
Genome size = 92,672 base pairs
Linker DNA = 35 bp
The total number of base pairs = number of base pairs in nucleosome core + linker DNA
= 146 + 35
= 181
The number of nucleosomes can be calculated as:
Nucleosomes = Genome size ÷ total number of base pair
= 92,672 ÷ 181
= 512
Therefore, there are 512 nucleosomes are present in the Drosophila.
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Your question is incomplete, but most probably your full question was, A large gene-containing region of DNA in the fruit fly Drosophila melanogaster is 92,672 base pairs long. The length of linker DNA in Drosophila is 35 base pairs. Approximately how many nucleosomes are required to organize this region of DNA into the 10nm fiber structure?
unicellular, prokaryotic organisms that are capable of causing disease belong to which kingdom?
Answer:
Animalia is the kingdom
Explanation:
(Marking brainliest!)
how are the organelles of a single cell like the organs of a multi-cellular organism??
ARE ALL CELLS THE SAME?
Answer: No
Explanation:
Answer:
no
Explanation:
There are two cell types: prokaryotes and eukaryotes. Prokaryotic cells are usually single-celled and smaller than eukaryotic cells and prokaryotes have no cell membrane where as eukaryotes do
a propagation flat with dimensions of 18"x8"x2" has the following volume
Explanation:
Volume = 18×8×2 =288 (units)³.
please put the unit as follows in the question.
hope this helps you.
blood vessels that carry blood back to the heart are called
Answer:
There are three main types of blood vessels
The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart.
Explanation:
which trait would be most closely associated with high levels of mobility?
Answer:
7. Which trait would be most closely associated with high levels of mobility?
a. A body cavity
b. Germ layers
c. Cephalization <-----this one
d. A cuticle
e. Incomplete metamorphosis
Explanation:
A student observes a reaction with an enzyme in a beaker. If nothing is removed from the beaker containing the reaction, what is the only thing the student must add to start the reaction again?
A.acids
B.enzymes
C.products
D.substrates
Answer:
90% Products, 10% Acids
Explanation:
enzymes are not consumed in a reaction. they remain mixed with reactants. if all products have reacted in the reaction and there's nothing left, the answer is products.
But acids promote chemical reactions at certain incidents. especially if it's an essential compound to the reaction.
Ex-: Sucrose is hydrolysed to Fructose and glucose by heating with an acid. but using sucrase, the same can be done.
The praying mantis is an example of a(n)
Answer:
Insecta
The genus Mantis is in the family Mantidae, of the mantis order Mantodea. Some of its species have the common name "praying mantis".
which pair of alternatives is highlighted by the life cycle of the cellular slime molds, such as dictyostelium?
How can you tell the age of a twig?
Answer:
The age of the whole twig can usually be determined by counting back from the longest branch.
Answer:
Para calcular la edad de los árboles según este método: Medir la circunferencia del tronco a una altura de unos 140 cms respecto al suelo. CaLcular el diámetro: dividir la circunferencia entre pi (3,1416). Multiplicar el diámetro obtenido por el factor de crecimiento medio de la especie del árbol.
Explanation:
espero te ayude
3. PLEASE HELP WITH THIS WILL GIVE BRAINLIST 2 BEST ANSWER
calculate the volume of a box with the following dimensions: Length = 22cm, Width = 8 cm, height = 4cm.
(show all steps)
PLEASE HELP WITH THISSS
Answer:
V box=length x width x height
Explanation:
704cm hope this helped
PLEASE ANSWER ASAP BRAINLEST
How do adjacent cells that are not directly attached communicate? please explain in detail and explain as much you can please!
Answer:
Cells usually communicate by using chemical signals, these chemical signals which are proteins or other molecules produced by a sending cell, are often secreted from the cell and released into the extracellular space.
hopefully this helped sorry if i didn't get to explain more thoroughly.
How can a star be extremely hot like Alpha Canis Majoris (4 times hotter than our sun) but give off so little light (only 2% of our sun’s light)?
It's on Earth Science.
Answer:
this is due to the fact that stars are suns of other galaxy as we know that we have about a million galaxies in space. the earth is located in the milky way galaxy so these stars are about a 150 billion kilometres from earth
Solar radiation is a broad word for the electromagnetic radiation that the sun emits. It is also sometimes referred to as the solar resource or just sunshine. A multitude of devices can be used to collect solar radiation and transform it into useful forms of energy, such as heat and electricity.
How much of the Sun do we actually see?Sunlight at Earth's surface is roughly 42 to 43 percent visible (400 to 700 nm), 52 to 55 percent infrared (above 700 nm), and 3 to 5 percent ultraviolet in terms of energy (below 400 nm).The Sun always emits the same amount of energy. Insolation refers to the incoming solar radiation. Seventy percent of solar energy makes it to the planet.99.8% of the mass in our solar system is found in the Sun. Everything, from tiny Mercury to the gas giants to the Oort Cloud, 186 billion light-years away, is kept in place by its gravitational attraction.What would occur if our distance from the Sun increased by 10%?More radiation, ultraviolet rays, heat, and other rays would be directed at our atmosphere. It would be impossible to live. According to my projection, the global average temperature would increase from 16 C to 65 C. (149 Fahrenheit). This would be high enough to prevent most life from existing, yet low enough to prevent water from boiling.The solar system itself, the Sun Between 99.8 and 99.9 percent of the mass of the solar system is found in the Sun. The remaining matter is distributed among the planets and their satellites, asteroids, comets, and the gas and dust that surrounds our star.To learn more about Solar radiation, Refer:
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what makes cartilage an unusual connective tissue?
Cartilage essentially lacks blood vessels coursing through the cartilage. The elastic connective tissue is found in the large blood vessels of the body.
why do the functions of many receptor kinases depend on the fluid nature of the plasma membrane?
Complete Question
Why do the functions of many receptor kinases depend on the fluid nature of the plasma membrane?
The generation of cAMP requires a fluid membrane.Binding of ligand to the receptor requires a fluid membrane. The receptor monomers must move together and dimerize to be activated. Phosphorylation requires a fluid membrane.We have that
The reason why the functions of many receptor kinases depend on the fluid nature of the plasma membrane is because
Phosphorylation requires a fluid membrane.
Generally
kinase
This substance is simple defines as a facilitator for phosphate forms to move from a specific energy level to its specific sub levelsNow we recognize this phenomenon as Phosphorylation Phosphorylation being a process that facilitates the movement of phosphates requires a fluid membrane.
Therefore
The reason why the functions of many receptor kinases depend on the fluid nature of the plasma membrane is because
Phosphorylation requires a fluid membrane.
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Photosynthesis ____energy and cellular respiration_____
energy.
produces, requires
acquires, produces
stores, uses
requires, produces
Answer: stores and uses
Explanation:
Which phrase describes a nuclear chain reaction?(1 point) a series of reactions in which particles from one reaction trigger the next reaction a reaction in which small nuclei combine into a larger nucleus a reaction in which particles spontaneously emit radiation a type of reaction which only takes place in the sun and other stars
please help
Answer:
series of reactions in which particles from one reaction trigger the next reaction.
Explanation:
If your a connexus student here for the Modeling Nuclear Processes Quick Check, here are the answers!
1-the process by which small nuclei combine into a larger nucleus
2-a series of reactions in which particles from one reaction trigger the next reaction
3-disturbing a drop of water such that it breaks into smaller droplets
4-popping a bag of popcorn
5-The resulting nucleus is more stable than the original nucleus. The nucleus can be of a different element than the original.
Hope this helps! Good Luck!
A nuclear chain reaction happens when a single nuclear event averages out one or more further nuclear reactions, opening the door for a potentially endless chain of similar processes. Therefore, option (A) is correct.
What is a nuclear chain reaction ?A nuclear chain reaction happens when the output of one nuclear reaction triggers the occurrence of further nuclear reactions. These cascade reactions are nearly invariably a succession of neutron-excessive fission events. The moniker "chain reaction" comes from the fact that these extra neutrons have the potential to trigger more fission events. The functioning of nuclear power plants depends on nuclear chain reactions.
About a million times more energy is released during nuclear reactions than during chemical ones. Every fission event must result in precisely one additional fission event in order for a nuclear chain reaction to continue.
Therefore, option (A) correctly describes the nuclear reaction.
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¿De qué manera comprobarías el funcionamiento del filtrador de agua?
Answer:
La forma más eficaz de determinar si su filtro de agua funciona correctamente es analizar el agua antes y después de que pase por el filtro.
why does cell division occur in sexually reproducing organisms?
Answer:
to produce a complex multicellular individual
Explanation:
hope this helps
Cell division occurs in sexually reproducing organisms to maintain the organisms growth and development. Cells have a particular life cycle after which they die. These cells need to be replaced constantly.
What is Cell division?Cell division is the fundamental process to all living organisms and required for the growth and development of organisms. It is an essential means of reproduction for all the living things, cell division allows organisms to maintain their number and to transfer their genetic material to their offspring.
The role of this process in sexual reproduction is to produce sex cells (gametes) and to repair the genetic defects in germ line cells (sex cells). Both sexual and asexual organisms go through the process of mitosis. However, sexual reproduction also includes meiosis which maintains the number of chromosomes in off-springs.
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