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.
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.
List 3 things you have learned from the state officer visit.
Well state officers teach you many skills, like self defense , firearms training, and first aid skills and knowledge hope i helped.
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.
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
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 (?)
HELP ME PLZ .I HAVE ONLY 10 minutes
They have been stuck in this puddle for awhile. Why has not the water percolated?
A.They can’t soak into the street since it is made of stone.
B.The sun isn’t shining, so they can’t go up into the sky.
C.They are not on a hill, so they can’t flow downhill
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.
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:
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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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.
Which term refers to a variable that is not allowed to change during an experiment? O A. Random variable O B. Dependent valable O C. Hypothetical variable D. Controlled variable
Answer:
controlled variable
Explanation: i know this bc i just got it wrong lol
Pollution
10. Discuss why people choose to pollute the environment instead of being environmentally friendly.
11. In this situation identify the "commons"
I can’t find the answer to the second question in this article called tragedy of the commons by garrett hardin 1969
Answer:
Explanation:
I found an exaple
Solutions to the tragedy of the commons include the imposition of private property rights, government regulation, or the development of a collective action arrangement. Historical examples of tragedies of the commons include the collapse of the North Atlantic Cod fisheries and the extinction of the dodo bird.
maybe this well help as well
human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
A worm would stand a poor chance of being fossilized because ________.
A) worms have been rare during the geologic past
B) worms have no hard parts
C) worms contain no carbon-14
D) all of these
A worm would stand a poor chance of being fossilized because worms have no hard parts.
What is fossil?
An animal or plant from a previous geologic era that has been preserved in the Earth's crust as a fossil, remnant, impression, or trace. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the world.
Only a small percentage of extinct species have been preserved as fossils, and often only those with a sturdy skeleton are capable of doing so. A calcareous skeleton or shell is present in the majority of major groups of invertebrate creatures (e.g., corals, mollusks, brachiopods, bryozoans).
Other types have silicon dioxide or calcium phosphate shells (both of which are found in the bones of vertebrates). A fast burial following deposition may leave these in a shell or bone.
Therefore, A worm would stand a poor chance of being fossilized because worms have no hard parts.
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which helath professionals are least likely to face risk factors in their work that could increase their chances of getting cancer?
A.Scientists who work with toxic chemicals
B. Therapists who operate radiation machines
C. Nurses who treat patients with viral infections
D. Researchers who study DNA replication
Name 2 places were Archaebacteria can live
Answer:
such as volcanic vents
at the bottom of the sea
boiling mud around volcanoes
hot springs
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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Identify an organization whose mission is to preserve natural habitats.
Answer:
Defenders of Wildlife
Explanation:
founded in 1947, dedicated to protection and restoration of imperiled species.
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:
suggest why a laborer needs more energy in a day than a office worker
Answer:
a laborer is someone who constantly does physical work which exerts more energy then doing paper work or just work in general in an office so the laborer needs more energy to do the hard physical work then the office worker
Answer:
A labor requires more energy to continuously do work whereas an office worker does work from a single place, the sedentary work environment of an office worker requires less energy and hence less carbohydrates.
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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:
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.
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.
hope this helps!!!
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
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
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.
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:
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
Protons have a positive charge, electrons have a negative charge, and neutrons have no change. Given
information, if an atom is comprised of 5 protons, 4 electrons, and 5 neutrons, what is the charge (if any)
on this molecule?
A.It does not have a charge because there are equal amounts of neutrons and protons
It needs to lose a neutron and a proton so that all parts of the atom are equal
It has a positive charge because there are more protons than electrons
It has a negative charge because there are more neutrons and electrons than protons
