Answer:
A cardiac pacemaker is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chamber to contract and therefore pump blood by doing so this device replaces and/or regulates the function of the electrical conduction system of the heart. The primary purpose of the pacemaker is to maintain an adequate heart rate, either because the heart’s natural pacemaker is not fast enough or because there is a block in the heart’s electrical conduction system.
Explanation:
Hope this helps you
Helllllllpppppp please
Answer:
A good experiment must include all possible causal factors in one experimental group.
Explanation:
i cant tell if thats a choice but if not then none of the above i guess
Can anyone tell me the definition of protoplasm?
I will mark the brainliest ❤️
Answer:
Protoplasm is a colourless material comprising the living part of a cell, including the cytoplasm, nucleus, and other organelles.
Explanation:
The protoplasm contains the living material of the cell. It consists predominantly of biomolecules such as nucleic acids, sugars, proteins, and lipids. It has inorganic salts and molecules of water as well. The cell membrane encloses the protoplasm.
name the main nitrogen-containing compound found both in plants and in animals
Answer:
Soil contains nitrifying bacteria that are crucial in converting nitrogenous wastes of dead and decaying matter of plants and animals to ammonia.
The most redox potential of soil nitrogen, ammonia, is transformed into its most oxidized form, nitrate, by nitrifying bacteria. By preventing soil nitrogen losses from leaching and nitrate denitrification, this is crucial for the function of the soil ecosystem.
What nitrogen compound found in plants and animals?The nitrifying bacteria found in soil are essential for producing ammonia from the nitrogenous waste products of dead and decaying plants and animals. The ammonia is subsequently changed into compounds that include ammonium. This is how the formation of ammonium compounds is aided by animals and plants.
Nitrification, which turns ammonia into nitrite and then nitrate, is a vital stage in the worldwide nitrogen cycle. Only prokaryotes perform aerobic nitrification, which makes up the majority of the process.
Therefore, The nitrifying bacteria found in soil are essential for producing ammonia from the nitrogenous waste products of dead and decaying plants and animals.
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Essential fatty acids
a. are synthesized by the liver.
b.
are a necessary precursor to cholesterol.
c.
cannot be synthesized by the body.
d.
are necessary for blood clotting.
Answer:
Essential fatty acids are those that cannot be synthesised by the body and therefore are essential to the diet.
I hope this helps
What is ballistochory? A.) the dispersal of seed by force. B.) the dispersal of seed by water. C.) the dispersal of seeds by animals. D.) the dispersal of seeds by wind
Answer:
A.) The dispersal of seed by force ( explosive mechanism )Answer: i think A.
Explanation: I hope this helps!!!
What is the Dental formula for Human adult and Human child
Answer:
Human: deciduous teeth: 212/212; adult = 2123/2123. Both childhood molars are replaced by adult premolars. Adult total is double the formula = 32
Explanation:
plz mark me as a brainlist i really need this
Answer:
adult = 2123/2123
Adult total is double the formula = 32.
human child=dental formula 2102/2102, indicating two incisors, one canine, zero premolars, and two molars in each quadrant.
Explanation:
The lock-and-key model of enzyme function shown in the image below, illustrates which important characteristic of enzymes?
Enzymes only fit with a specific substrate
Enzyme structure changes
Enzymes bind to any reactant
Enzymes work with any substrate
Answer:
Enzymes only fit with a specific substrate
Anaswer:
a!aaasd3qr2efa Arafat 22wc Ara dead F1 web fa add F1 CA add CA add few add few ev fa see E2 a few ea see eat f tea we Rea e R2-D2 22 andaskillful3nandaskillful333333333and a skillful effort to lobby Congress and the Roosevelt administration to pass a federal anti-lynching law to where black people and white people could sit
Explanation:
What is the independent variable?
A. Vitamin treatment
B. Amount of ink produced
C. The size of tank for the squid and the size of the squid involved in the
experiment
D. The color of the ink made by the squid
Explanation:
C no The size of tank for the squid and the size of the squid involved in the
experiment
pls mark me branilest
Most chemical reactions within cells do not occur spontaneously. Instead, they need a catalyst to get them started. Why do you think this is so?
Answer:
A catalyst is a chemical involved in, but not changed by, a chemical reaction. Many enzymes function by lowering the activation energy of reactions. By bringing the reactants closer together, chemical bonds may be weakened and reactions will proceed faster than without the catalyst.
why do nucleotides need to be activated before DNA synthesis?
what type of tissue does eczema affect
A nervous
B muscle
C epithelial
D connective
Water basic chemical structure is best described as
Water basic chemical structure is best described as they are formed from the combination of two hydrogen and one oxygen atom.
Two hydrogen and one oxygen atom combines that makes covalent bond with each other means sharing of electrons occurs. Water has the ability to dissolve polar solutes due to its polar nature. The angle between three atoms i.e. Hydrogen-Oxygen-Hydrogen is about 104.5 degrees so we can conclude that water is made up of two hydrogen and one oxygen atom.
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Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a base
substitution mutation?
-The doe did not eat.
-The dog dog did not eat.
-The dog did not et.
-The did dog not eat.
the doe did not eat
Explanation:
it should be did the doe not eat
no the dog did not eat
There are about 4 million red blood cells (RBCs)
in a microliter of human blood. An adult human
has around 5 liters of blood in their body. Based
on these numbers, roughly how many red blood
cells are in the body in scientific notation?
Answer:
20,000,000,000
Explanation:
Adult humans have roughly 20–30 trillion red blood cells at any given time, constituting approximately 70% of all cells by number. Women have about 4–5 million red blood cells per microliter (cubic millimeter) of blood and men about 5–6 million; people living at high altitudes with low oxygen tension will have more.
what are the six levels of organization in ascending order?
why is it important for the government to assess the performance of the economy from time to time
Answer:
It is important to measure the performance of an economy as this will help businesses make good decisions about the future
Explanation:
Answer:
The reason why it's so important is that it indicates the growth in economic output, whether measured by GDP (gross domestic product), GVA (gross value added), or any other measure. ... Assessing economic output also helps investors understand what drives an economy.
mark me a brainlistList the three basic leaf shapes, In what other ways do
leaves vary from plant to plant?
1. Broad and flat leaf, 2. Long and narrow leaf, 3. Needlelike or saclelike. Leafs vary in a variety of sizes, in variety of textures, and in other ways. Distinguish between opposite, alternate, whorled, and rosette leaf arrangements.
list not less than 8 differences between
Excretion in flowering plant and excretion
humans in a table form.
Answer:
Four differences between excretion in flowering plants and excretion in human are as follows.
(1) In a plant, oxygen is a by-product of excretion whereas, in animals, urea is produced.
(2) Plants do not have exclusive excretory organs while humans do have them.
(3) Plants tend to shed their parts while excreting while humans do not tend to shed their organs for the process.
(4) Some solid waste products of plants are stored in their dead cells whereas, in humans, all excretion product gets passed out of the body.
Explanation:
I hope this is correct ( Tried my best :D )
which statement best explains the significance of meiosis {sex cell division} in evolution of a species?
Explanation:
meiosis help organism to replace worn out tissues
What are the largest trees on this planet?
Explanation:
The General Sherman Tree is the largest in the world at 52,508 cubic feet (1,487 cubic meters).
In gluconeogenesis, organisms use ATP to make glucose, then in cellular respiration they break down the glucose again to get energy. Why not just store the ATP
Answer:
Explanation:
So what happens is the water and carbon dioxide molecules have A chemical reaction that involves a pigment called chlorophyll which takes the suns energy and stores it. When these reactions collide they create 6 molecules o oxygen gas and 1 molecule of glucose along with more elements. plants use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.
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Structure and function are related in biology.
determines function.
Proteins with different structures perform different
functions.
Heart muscle cells have a different structure and function
than stomach muscle cells.
Different
have different anatomical
structures with different functions.
1
Answer:
I only know the last one , I think its organs
After suffering a stroke, JaneDoe finds that she cannot move her left arm. This would suggest that the stroke caused damage to the ___________________ lobe.
a. right temporal
b. right frontal
c. left occipital
d. left frontal
e. left temporal
Answer:
Choose D. left frontal
Explanation:
Not sure but hope it helps.
Explanation:
Answer is Option 'D'. Left frontal
what is the specie level of an amoeba?
Answer:
proteus
Explanation:
Amoeba is a single cell organism from kingdom protoctista
whats a simple definition for ribosomes (an animal cell)?
please solve all the questions.
Answer:
the duty of each of the professionals are:
Explanation:
1)junior technician of plants science
=to research about plants and give information to all the world
2)ranger
=to protect a forest or a certain place
3)forester
=to keep an eye on the forest and keep forest safe
4)jt of food and dairy products
=to research for food and give information about things related
Identify the type of transport described by each of the following:
a. An ion moves from low to high concentration in the cell.
b. A bicarbonate ion moves through a protein channel.
c. Carbon dioxide moves through a cell membrane.
Answer:
A gbhchgjfhgngngjgj
Explanation:
im not right edge2020
The opposite process where a photon
can disappear and create a particle
and its antiparticle is called what?
A. Pair production
B. Lone production
C. Physics production
D. Electron production
Reset Selection
Answer:
a think is d
Explanation:
because is electron
If a tRNA molecule has an anticodon which reads GCUAAA, what was the codon of the mRNA molecule?
O GCUTTT
O CGAUUU
O AGUCCC
O CGATTT
The anticodon is a three-nucleotide sequence that is complementary to the codon of the mRNA. If two tRNA molecules have two anticodons that read GCUAAA, then the codons of the mRNA molecule will be CGAUUU.
The messenger RNA (mRNA) is a type of RNA sequence encoded by fragments of DNA called genes during transcription. Subsequently, the mRNA travels to the ribosomes where it is used as a template during the protein synthesis by a process called translation.The anticodon is a sequence composed of three nucleotides of the tRNA that read triplets of nucleotides called 'codons' of the mRNA in the ribosomes.There are 64 different types of tRNAs that bind to their corresponding codons in order to add specific amino acids to the nascent polypeptide chain.These anticodons bind to the codons of the mRNA by Watson–Crick base pairing.According to base pairing, Adenine always pairs with Thymine in DNA (Uracil in RNA), while Guanine always pairs with Cytosine.In conclusion, if two tRNA molecules have anticodons that can be sequentially read GCUAAA, then the sequential codons of the mRNA molecule will be CGAUUU.Learn more in:
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Answer:
CGAUUU
Explanation:
I did the test and got it right kick some butt good luck! =)
Compared to land surface temperature changes, water surface temperature changes occur
Answer:
night is the answer that