Answer: A system is a group of interacting or interrelated entities that form a unified whole. ... A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and expressed in its functioning. Systems are the subjects of study of systems theory.
Explanation:
What are the sources of energy for the processes that affect Earth?
Answer: ok so Most of the energy in the Earth system comes from just a few sources: solar energy, gravity, radioactive decay, and the rotation of the Earth. Solar energy drives many surface processes such as winds, currents, the hydrologic cycle, and the overall climate system. Gravity makes rivers and other materials flow downhill and creates tides (from the Moon's gravitational pull). Radioactive decay creates heat in the Earth's interior, while Earth's rotational forces influence currents of air and water.
Explanation:
Which of the following is NOT true of spiral galaxies?
A. New star formation is common in the arms.
B. They have a central bulge containing mostly older, red stars.
C. They are the dimmest of all galaxy types.
D. Gasses and stars are more concentrated in the arms.
Answer:
C is not sprial galaxy i think
primary tissue of tendons and ligaments?
Answer:
fibrous connective tissue
Explanation:
Ligaments and tendons are both made up of fibrous connective tissue, but that’s about where the similarity ends. Ligaments appear as crisscross bands that attach bone to bone and help stabilize joints. For example, the anterior cruciate ligament (ACL) attaches the thighbone to the shinbone, stabilizing the knee joint.
List 3 Examples of data that are both quantitative and qualitative.
Answer:
qualitative data - Hair color , Blood type Ethnic group
quantitative data - number of students in class , height , weight
Explanation:
hop it helps
Question 10 of 10
There are five different types of nucleotide bases found in living things. Which
is an accurate comparison of the bases found in robins and the bases found
in sparrows?
A. Robins and sparrows have different types of bases.
B. Sparrows have only one type of base in their cells; robins have
many.
C. Robins and sparrows have the same arrangement of the bases.
D. Robins and sparrows have different arrangements of the bases.
Answer:
a
Explanation:
Answer: the answer is A
Explanation:
Which scenario would most likely result in cooperative hunting?
Finches eat grass seeds, but grass seeds are not found in an area during winter months.
A shark eats a certain kind of fish, and the fish swim together when the shark comes close.
Wolves eat rabbits, and the number of rabbits in an area is low.
Lions eat zebra, and there are a lot of zebra and lions living in an area.
Answer:
C. Wolves eat rabbits, and the number of rabbits in an area is low.
Explanation:
Cooperative hunting is a form of animal social behavior that is found common among predators mostly faced with a challenge of effectively finding prey to prey on easily. It involves the cooperation of a group of an animal species that cooperate together to effectively increase their chances of catching preys as well as increase their survival chances in such territories.
A scenario that would most likely result into cooperative hunting is where there are few and limited number of rabbits in an area, and as such, it is difficult to hunt rabbits due to scarcity. In order to increase their chances of catching rabbits, wolves in that area would cooperate together and hunt in packs. This will increase the number of kills they'd make when compared to hunting individually. This ensures there is availability of food to eat and also ensures their survival as a group.
What are some examples of steroids and their functions?
Answer:
testosterone- the principal male sex hormone and an anabolic steroid.
Cholic acid, a bile acid, showing the carboxylic acid and additional hydroxyl groups often present.
Dexamethasone, a synthetic corticosteroid drug.
Lanosterol, the biosynthetic precursor to animal steroids.
Which ocean is on the eastern coast of north and South America
Answer:
Atlantic Ocean
Explanation:
Edge 2021
Bile is made in the _________ and stored in the _____________. When food enters the small intestine from the ____________, bile is released into the intestine through the ___________________. The function bile is to improve the digestion of _______. It does this by emulsifying the fat. This means that instead of being in big globules, the fat is held in the digestive juices as lots of small droplets.
This increases the _________ area of the fat and makes it easier for the ___________ to reach all the fat molecules.
Answer:
liver, gall bladder, stomach, bile duct, fats, surface, lipase (?)
which biome is found only in the united states and canada
Answer:
The Arctic tundra
Have a good day!~
Answer:
north America biomes :))
what is the main sources of human body
Answer:Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids, and proteins.
hope this help yu am so smart at this questiuon
Explanation:
When working with bacteria, you will --
O only culture known, nonpathogenic bacteria
O only culture pathogenic bacteria.
O dispose of the bacteria by taking them home with you.
O contaminate all cultures.
Answer:
Only culture known, nonpathogenic bacteria.
Explanation:
Pathogenic Bacteria is bacteria that can cause diseases, so if you culture a pathogenic bacteria you could cause an out-break of a disease or illness.
Culturing is the process of basically expanding a bacteria, or making a family that reproduces itself, so you would want a disease or fatal bacteria to reproduce, causing an outbreak.
All cells contain _______, ________, and __________
1) cytoplasm, membranes and genetic material
2) membrane, genetic material and chloroplasts
3) cytoplasm, genetic material and cell wall
4) cytoplasm, membrane and water vacuole
the answer is letter A
Although cells are diverse, they all have certain parts in common: plasma membrane, cytoplasm, ribosomes, and DNA.
Which of the following statement(s) is/are true?
1. Insulin converts glucose to glycogen
2. Insulin causes blood glucose levels to fall
3. Glucose is stored as glucagon in the liver
4. Glycogen can be broken down to release glucose into the blood
-----------------------------
A 2 only
B 2 and 4
C 3 and 4
D1 and 2
pls answer correctly
will give the brainliest!
Urgent!!!
Answer:
The answer is D.
Explanation:
When the blood glucose level is high, pancreas will produce insulin which convert glucose into glycogen and store it in liver. Eventually, the blood glucose level will decrease to normal.
WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!
Why is the notion of a "missing link" between modern apes and humans inaccurate to scientists?
Group of answer choices
Humans evolved from a common ancestor shared with modern apes, not from modern apes themselves.
None of these is correct.
Humans do not share a common ancestor with modern apes.
Humans arose suddenly from the modern ape lineage due to a single Hox mutation, so there are no intermediates.
Answer:
after reading a bunch, i think its "Humans evolved from a common ancestor shared with modern apes, not from modern apes themselves." so sorry if it's wong! hope it helps <3
Scientists disagree with the idea that there is a "missing link" between humans and modern apes because we did not diverge from modern apes, but rather from a common ancestor with them. Therefore, the correct option is A.
What is the missing link between humans and modern apes?The concept of the "missing link" is no longer considered true or valid by scientists. There is no specific "missing link" species that clearly links contemporary humans with contemporary apes, despite the fact that both modern humans and extant apes descended from a common parent species, which is now extinct.
Instead, the fossil record suggests that various hominin species were present during human evolution, demonstrating a slow but steady evolution of human-like traits. This indicates that a separate animal that went extinct was the common ancestor of modern humans and apes. Because evolution is a gradual change over time with many intermediate forms rather than the instantaneous emergence of a new species, there is no missing link.
Therefore, the correct option is A.
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What is the sun made up of?
Answer:
Mostly hydrogen, some helium too and small amount of oxygen, carbon, neon, nitrogen, magnesium, iron and silicon
Why were the modern constellations not added by the ancient astronomers
According to US Energy Information Administration data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1500 at current gas prices. What is one reason for these differences?
Answer:
transportation
Explanation:
looking at nighttime satellite photos that show dark landscapes illuminated by glowing urban dots. On the surface, these seem like clear evidence of city dwellers' oversized energy footprints.
And when comparing big cities and small towns directly, a Philadelphia, Pennsylvania, obviously dwarfs the power consumption of a Philadelphia, Tennessee Urban and rural populations use energy differently, though, which complicates such broad comparisons.
Despite hosting regular traffic jams, cities win the head-to-head efficiency matchup in transportation thanks to their mass transit systems and denser layouts, which promote walking and bicycling. Small-town and suburban residents usually have to drive themselves to get around, which isn't cheap.
According to EIA data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1,300-$1,400 at current gas prices.
( I hoped this helped! :D )
Answer:
Urban populations make use of mass transit.
Explanation:
Urban populations make use of mass transit. This cuts down drastically on the amount of money spent on gasoline and auto maintenance.
All forms of life are made up of cells.
A) TRUE
B) FALSE
Answer:
true
Explanation:
all living organisms need at least one cell to surivive
Research a scientific belief that was accepted centuries ago, but has since been disproved. How does it support the use of the term "scientific theory" instead of "scientific fact?"
Answer:
In the past was believed that species were fixed entities
Explanation:
Before Darwin's evolutionary theory (in which all living things arise through descendants with modification), Linnaeus had proposed that species were immutable entities. Although it was an erroneous concept, this belief enabled the development of a system for classifying and naming organisms. Indeed, Linnaeus is nowadays recognized as the father of taxonomy to create this system. This example shows that scientific knowledge is not based on factual information, but it is a process that progressively increases our understanding of the real world.
In history, there have been different scientific theories that have generated controversy and have been refuted over the years, for example, the heliocentric and geocentric theories.
A scientific theory is a term that refers to:
A set of concepts, phenomena, and properties, rules, or scientific laws that express the relationships between the observations of these concepts that explain a phenomenon.On the other hand, a scientific fact is a concept that refers to:
A verifiable and objective observation, in which the facts are identified with the observations.According to the above, the geocentric and heliocentric theories can be based on the concepts of fact and scientific theory because the scientific fact allowed the geocentric theory to be raised centuries ago from observation.
However, later this was refuted by the geocentric theory that did present a logical and objectively accepted explanation based on calculations and observation.
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BRAINLIEST Are tigers carnivores herbivore
Answer:
Tigers are carnivores because they eat other animals
Explanation:
Why did Portuguese sailors round the southern tip of Africa in 1488?
Answer:
In 1488, Portuguese explorer Bartolomeu Dias (c. 1450-1500) became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. ... A major maritime victory for Portugal, Dias' breakthrough opened the door to increased trade with India and other Asian powers.
Explanation:
Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
Why southern tip of Africa named the cape of good hope?The Portuguese navigator Bartolomeu Dias gave the Cape its original name, the Cape of Storms, in the early 1500s. Later, it was changed to Good Hope to draw more travelers to the southern African coast-passing Cape Sea Route.
The Flying Dutchman supposedly resides at the Cape of Good Hope. The ship is crewed by tortured and ghostly sailors, and according to mythology, it is destined to endlessly beat its way across the nearby waters without ever succeeding in reaching the peninsula.
Thus, Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
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Which of the following is an advantage of single cell recordings
Answer:
1. High spatial resolution and precise timing
2. Direct recording of neural activity
Explanation:
What is found in the nucleus of a eukaryote that is free-floating in a prokaryote?
A. DNA
B. Cytoplasm
C. Ribosomes
D. Mitochondria
Answer:
Nucleoid
Explanation:
Prokaryotic cells, such as bacteria, have a free-floating chromosome that is usually circular and is not enclosed in a nuclear membrane. Instead, the DNA simply exists in a region of the cell called the nucleoid.
if two different types of particles have the same speed in a medium,why is chromatography process not suitable? write with a reason.
Explanation:
When using chromatography, the 2 solutes in the solvent paper should have different Rf values from the base line to identify them as different compounds.
If they were to have the same speed in the solvent, they would appear as 1 dot instead of 2 separate dots, which is a false reading.
are cells the basic unit of life
Draw a flowchart that explains how Tom’s nervous system controls his actions. As part of the flowchart, write one or two sentences describing how the nervous system is involved in each of these steps:
Tom steps into the haunted house.
Tom feels his heart pumping and his breathing speed up.
Tom jumps when he sees the costumed character.
Tom runs out of the haunted house.
Answer:
Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates this message to his skeletal muscles, so he can step inside.
Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased heart rate and breathing.
Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused by his nervous system.
Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates this message to his skeletal muscles.
Explanation:
Answer:
Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates this message to his skeletal muscles, so he can step inside. > Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased heart rate and breathing. > Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused by his nervous system. > Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates this message to his skeletal muscles.
Explanation:
Atoms of the same element that differ in the number of neutrons they contain are called
Answer:
isotopes
Explanation:
Atoms in a chemical element that have different numbers of neutrons than protons and electrons are called isotopes. The atoms in a particular element have an identical number of protons and electrons but can have varying numbers of neutrons.
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Julie is a high school softball player and in her last game, she was struck in the head by a wild pitch. She blacked out and her coach called 911. In the ambulance, Julie complained that the paramedics were yelling at her and the sirens must be broken because they seemed very noisy. She wanted to know if there was cotton she could put in her ears because everything was so loud. Where was Julie hit? What is the function of this part of the brain?
Answer:
cerebellum
Explanation:
cerebellum is concerned with the balance and positioning of the body, it receives impulses from the semi circular canals of the ears through the vestibular nerve fibre
I HOPE THIS HELPS.
Cerebellum is the most probable part of the brain which was affected. Julie got hit on the cerebellum which affected her hearing capacity and movements.
What is Cerebellum?
Cerebellum is the part of brain which is located at the back of the head, just above and behind the point where spinal cord connects to your brain itself. Cerebellum is also known as the little brain. It was believed since a long time that cerebellum's job was to coordinate the muscle movements.
The cerebellum is important part of the brain as it adjusts postural adjustments in order to maintain balance. It modulates commands to motor neurons to compensate for shifts in body position or changes in load upon muscles.
The cerebellum is located at the back of brain. Damage to the cerebellum can lead to loss of coordination of motor movement, inability to judge distance and when to stop, inability to perform rapid alternating movements, movement tremors, and staggering.
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It is January and Haley, Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They
all wore nylon socks, and thought that a material such as wool would be better at keeping their feet warm. They decided to design an
experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C
and place inside each sock
What observation is being made?
Answer:
Which material keeps the water the warmest after a period of time. Or it could be the temperature of the water after a period of time
