The heart is actually (one, two, or three) pumps?
The heart has two pumps
Properties of the heartThe properties not the heart include;
It is divided into two pumping systemsThe right system receives oxygen - poor blood from the veinsThe left system gives out oxygen-rich blood through the artery to other organs of the body.It is divided into four chambersThus, the heart has two pumps.
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The heart as a vital organ is characterized as being an organ with two pumps.
How many pumps are in the heart?A typical heart is characterized by 4 chambers in which case, it has two upper and two lower chambers. The upper chambers, otherwise termed the right and left atria, receive low pressure incoming blood while the lower chambers, the more muscular right and left ventricles, pump blood out of the heart.
Hence, it follows the heart contains two pumps.
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Question 20 of 25
Exponential population growth cannot continue when organisms begin to
O A. adapt
OB. reproduce
OC. compete
OD. mutate
Alpa wants to change 0.54 kilometers into a smaller metric unit
If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.
What is a Metric unit?A Metric unit may be defined as a technique of measurement in which the basic units are the meter, the second, and the kilogram. These units are interchanged with one another by using several formulas of conversion.
The complete question is as follows:
Alpha wants to change 0.54 kilometers into a smaller metric unit. She will have to:
multiply divide addsubtractTherefore, If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply. Thus, the correct option is A.
For example, In case, if she wants to convert 0.54 into hectometers, then she has to multiply it by 10, that is, 0.54 × 10 = 5.4 hectometers.
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Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the zooplankton get from the phytoplankton?
phytoplankton zooplankton bivalves sea ducks bald eagle
500 kg
5,000 kg
50,000 kg
500,000 kg
50,000 x 0.10 = 5,000J energy did the zooplankton get from the phytoplankton. thus option B is correct.
What do you mean by food chain?In ecology, the food chain is the flow of substance and energy from one organism to another in the form of food.
A process cycle from producer to consumer to decomposer is referred to as a food chain.
Plants, herbivores, omnivores, and carnivores all exist. Beginning with plants, moving on to herbivorous insect, spiders, a small bird, a snake, a hawk, a fox, and a lion When a person passed away, a hyena would consume their body. When the hyena passed away, the body would disintegrate, becoming food for worms, and then become fertilizer for plants. so according to 10 percent rule, zooplankton get 5000 j of energy from phytoplanktons.
The food chain's cycle will then repeat itself time and time again.
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Answer:
C. 50,000 KG
Explanation:
edge 2022 :)
glomerular capillaries and podocytes together form the:
According to the research, glomerular capillaries and podocytes together form the filtration membrane.
What is the filtration membrane?It is the filtration barrier of the renal corpuscle that consists of the endothelium of the glomerular capillaries, the podocytes, and prevents the passage of macromolecules mechanically and electrically.
Podocytes also keep the glomerular filtration barrier stable by removing proteins and immunoglobulins.
Therefore, we can conclude that according to the research, glomerular capillaries and podocytes together form the filtration membrane.
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cells were first discovered when a scientist named _____________ observed cell walls in cork under a microscope
The cells were first discovered when a scientist named Robert Hooke observed cell walls in cork under a microscope.
Who was Robert Hooke and what was his importance for cytology?Robert Hooke's observation made it possible to visualize the dead cell walls of cork, even without knowing what the image represented, exactly, and without relating living beings to a cellular composition.
In the beginning, the cell theory was elaborated by the scientist Robert Hooke, in the year 1665. Based on this research, the cell is a morphophysiological unit of all living beings, that is, it corresponds to the smallest unit of life.
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Which event is NOT part of the process of DNA replication?
1.Ribosomes are synthesized.
2.Hydrogen bonds are broken.
3.Nitrogenous base pairs are formed.
4.A double-stranded molecule unwinds.
Explanation:
1 cuz we don't need that ,we need all of them exept number 1
Answer:
1. (Ribosomes are synthesized)
Explanation:
Ribosomes are only involved in the translation of mRNA to proteins. During DNA replication DNA helicase unwind the DNA double-strand by breaking hydrogen bonds between the two strands. DNA polymerase then replicates each strands using nucleotides complimentary of the replicating strands.
The answers above is not my original answer, this question has already been answered previously by someone else, so all credit is given to Diatonic254.
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Repair of coronary vessel is called:
The repair of the coronary vessel is called; Angioplasty
How do you repair a vessel?Coronary vessels or arteries are defined as the blood vessels that supply oxygen-rich blood to the heart muscle in order to keep it pumping.
Now when there is a damage to the coronary vessel, it is repaired by a procedure called Angioplasty. This procedure is used to open blocked coronary arteries caused by coronary artery disease.
Angioplasty restores blood flow to the heart muscle without open-heart surgery and can be done in an emergency setting such as a heart attack.
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when speaking of the anatomy of a virus, we can say that ________.
When speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
What is anatomy of a virus?A virus is of a single or double-stranded nucleic acid surrounded by a capsid (called the protein shell).
When they are inside the living host cell, they can only produce once. Hence we can conclude that when speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
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What are some possible benefits and dangers if the DNA is used to create a mutant form of the organism?
Explanation:
The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
Many other mutations have no effect on the organism because they are repaired beforeprotein synthesis occurs. Cells have multiple repair mechanisms to fix mutations in DNA. One way DNA can be repaired is illustrated in Figure below. If a cell’s DNA is permanently damaged and cannot be repaired, the cell is likely to be prevented from dividing.
Which of the following is not true about the distribution of species? a. A species’ native range does not include areas where it was introduced by humans. b. Some species have a range they inhabit only for breeding. c. Seasonal ranges include areas where species are found for part of the year. d. All the organisms in an ecosystem share distribution patterns.
Answer:
D is the right answer ....
Answer:
d
Explanation:
what's the answer???
Answer:
D. Community C has a greater species population than Community B and A.
Explanation:
Community C total population: 98
Community B total population: 62
Community A total population: 24
The Cordyceps fungus infects ants and make the ants act like what pop-culture type of undead creature?
Ants that have been infected by the Cordyceps fungus exhibit zombie-like behaviors, according to popular culture.
What do you mean by parasitism?In this particular relationship, one species benefits while the other does not.
Ants and the Cordyceps fungus have a parasitic connection in which the ants become infected and take on the appearance of zombies.
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Which+oxygen+delivery+system+most+reliably+delivers+a+high+(90%+or+greater)+concentration+of+inspired+oxygen+to+a+7-year-old+child?
The oxygen delivery system that most reliably delivers a high (90% or greater) concentration of inspired oxygen to a 7-year-old child is Nonrebreathing face mask.
What is oxygen delivery system?Oxygen delivery system refer to a system that is use to pass oxygen to a patient which cannot breath on his own.
Therefore, The oxygen delivery system that most reliably delivers a high (90% or greater) concentration of inspired oxygen to a 7-year-old child is Nonrebreathing face mask.
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Polyploidy is the condition of having a multiple of the normal set of chromosomes. What does polyploidy result in? a. geographic isolation b. hybridization c. reproductive isolation d. mutation
Answer:
c.
Explanation:
c. reproductive isolation
Looking at the graph (photo attached), what is the independent and dependent variable?
Answer:
independent: food
dependent: mass grain
Explanation:
Fossil fuels are made when....
A. organisms don't fully decompose and become
trapped underground
B. organisms collide at high speeds during
catastrophic events
C. bedrock is liquidated due to shifting tectonic
plates
D. volcanic ash is liquidated under extreme pressure
Answer:
A
Explanation:
a - What happens when organisms don't decompose? If there were no decomposers, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
b - What happens when a catastrophic mass extinction occurs? A mass extinction event is when species vanish much faster than they are replaced. This is usually defined as about 75% of the world's species being lost in a 'short' amount of geological time - less than 2.8 million years
c - What does the shifting of tectonic plates cause? At the “seams” where tectonic plates come in contact, the crustal rocks may grind violently against each other, causing earthquakes and volcano eruptions. The relatively fast movement of the tectonic plates under California explains the frequent earthquakes that occur there.
d - Volcanic ash doesn't actually do that.
Now, how do fossil fuels form? After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Fossil fuels are formed when the organic matter that has been buried deep within the earth is subject to heat and pressure over millions of years. In both cases, heat and pressure are critical to the formation of fossil fuels.
so your answer is a
hope this helps:)
In the diagram, the arrow shows the movement of
electric charges through a wire connected to a battery.
Mark this and return
What causes the electric charges to flow from one end
of the battery to the other?
O a balance in electric potential
O a balance in resistance
O a difference in electric potential
O a difference in resistance
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O a difference in electric potential
what factors affect the populations in a ecosystems
i need help with part b
write a recursive function that takes a pointer to the root node of a tree t and returns a pointer to the root node of the tree that results from removing all leaves from t
The recursive function that takes a pointer to the root node of a tree t and returns a pointer to the root node of the tree that results from removing all leaves from T is given as
void removeLeaves( Node * & t )
{
if( t == NULL || ( t->left == NULL && t->right == NULL ) )
{
t = NULL;
return;
}
removeLeaves( t->left );
removeLeaves( t->right );
}
What is a Recursive Function?A Recursive function in the language of programming refers to a routine that requests services from itself directly or indirectly.
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how do all viruses differ from bacteria?
All viruses differ from bacteria in the sense that viruses cannot reproduce outside of a living host but bacteria can.
What are viruses and bacteria?Virus is a submicroscopic, non-cellular structure consisting of a genetic material (DNA or RNA) surrounded by a protein coat called capsid.
A bacterium cell, on the other hand, is a single celled organism with cell walls but no nucleus or organelles.
A virus requires a living host cell to replicate while a bacterium can replicate itself irrespective of a living host.
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Who was the first person to classify organisms into two groups
The first person to classify organisms into two groups was Aristotle, but Lineu was recognized as the father of taxomy
Who were the main scholars of biological classification?One of the central figures in the history of biological classification was the Swedish naturalist Carl von Linné, popularly known in our country as Linnaeus (1707-1778). His classification system encompassed all organisms and was based on the similarities between them.
Moreover, Aristotle, as far as is known, was the first to classify living beings. He divided them into two groups: animals and plants.
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When a fish swims from salt water into fresh water, its cells react by:
A. gaining water and swelling.
B. dividing to increase surface area.
C. fusing to decrease surface area.
D. losing water and shrinking.
When a fish swims from salt water into fresh water its cells react by losing water and shrinking. The correct option is D.
What is fresh water?Glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands, and even groundwater contain fresh water.
These freshwater habitats cover less than 1% of the world's total surface area but are home to 10% of all known animals and up to 40% of all known fish species.
When a fish swims from salt water into fresh water its cells react by losing water and shrinking due to osmosis.
Thus, the correct option is D.
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A fish swims from salt water into fresh water, its cells react by gaining water and swelling. Thus, option "A" is correct.
What is osmosis?Osmosis is the movement of water through a semipermeable membrane from an area of low solute concentration to one of higher solute concentration to establish an equilibrium.
For example, The solutes are solids that dissolve in water and form ions, such as salts (NaCl) and sugars, these solutes are also found the cell’s cytoplasm.
Thus, option "A" is correct.
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What primary tissue type comprises the highlighted structure
The primary tissue type comprises the highlighted structure is nervous.
What is the tissue nervous?Nervous tissue is a communication tissue, capable of receiving, interpreting and responding to stimuli. Nerve tissue cells are highly specialized in processing information. Neurons transmit nerve impulses and glial cells collaborate with nerve impulses.
In this case, nerves are structures formed by bundles of nerve fibers, which are part of the peripheral nervous system and act ensuring communication between different parts of the body and the central nervous system.
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Most transmembrane proteins have ___________ regions facing the intra- and extracellular fluid, and __________ regions embedded in the phospholipid bilayer.
Most transmembrane proteins have hydrophilic regions facing the intra- and extracellular fluid, and hydrophobic regions embedded in the phospholipid bilayer.
What is transmembrane protein?Transmembrane proteins are membrane proteins that surrounds the entire entity of the cell connecting both the outside and the inside of the cell.
The hydrophilic regions are the regions that are water loving which faces the intra- and extracellular fluid.
The hydrophobic regions are the regions that repels water and they are found within the phospholipid bilayer.
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is it important to build cities by cutting down all the trees and clearing the forest for the country?
Answer:
At one instance when polution is at its peak we can think that it is not right to cut trees to build cities and factories
but at the same time there are so many peoples .where they will live if there were no cities as people usually migrate from village to city for job and employment.
Discuss the relationship between the digestive systems a carnivore and herbivore and compare the length of the digestive system and diet of that animal
Herbivores have longer digestive systems than carnivores have.
How the herbivores have longer digestive systems compared to carnivores?We can conclude that the herbivores have longer digestive systems compared to carnivores.
Carnivores feeds on other animals whereas herbivores eats plants.Most herbivores have a four stomach compartment system that helps them process and digest their food.This is because they have to process cellulose in plants which needs to be properly broken down.Flesh-eating carnivores do not require this arrangement.The four stomach compartment of most herbivores includes Rumen, Reticulum, omasum and abomasum.They also chew the cud whereby they regurgitate food materials.Thus, this could be the answer.
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Why is it important to track our carbon and ecological footprint?.
Answer:
The carbon footprint is a very important means to understand the impact of a person's behavior on global warming. This is why someone who effectively wants to contribute to stopping global warming, at least on an individual scale, needs to measure and keep track of their personal carbon footprint.
Explanation:
a. Worldwide, what percentage of human water usage does industry account for? (Note: This relates to water usage now, not water supply.) What is the percentage in the United States?
Explanation:
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