Elements that have the same number of protons but a different number of neutrons in the nucleus are called
A periods.
B metalloids.
C groups.
D isotopes.
Please help thank you
Based on the procedures and data, which of these is the MOST appropriate
conclusion?
The control situation was as effective as the hand sanitizer and anti-bacterial
soaps.
Both soaps did a better job killing bacteria than the hand sanitizer.
The advertiser's claims are true; the hand sanitizer worked best.
The experiment is not valid; there is no control.
With over 600 muscles in the body we are able to do an array of motions. What is the difference between what big muscles, like the four in the quadriceps, can do and what those like the thirty in our hands can do?
The functions of each muscle depend on its location and ability to perform specific work. For example, the masseter muscle is the strongest muscle in humans which is present in the jaw.
What is the significance of muscles?The significance of muscle is understood by the fact that these structures are linked to bones, internal organs, and blood vessels. These components are responsible for movement by their contractions.
According to the context of this question, the muscles in the shoulder region are the four rotator cuffs which significantly include the supraspinatus, infraspinatus, teres minor, and subscapularis. The four muscles in the quadriceps have to perform a different function which includes heavy weightlifting, so, they have to strongest enough.
While the thirty muscles present in the hand can do numerous functions with different levels of intensity. These muscles are not too strong as compared to masseter but are superior.
Therefore, the functions of each muscle depend on its location and ability to perform specific work.
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Larvae of the Diamondback moth feed on cauliflower paleo Aunt Farmers commonly used pesticides to repel them all from the cauliflower plants the larvae of the Diamondback moth arnab resistant various types of pesticides which statement best describes how the larvae became resistant?
Answer:
Mutation.
Explanation:
Mutation is the factor that is responsible for the acquiring resistance of various pests against pesticides because in mutation the genetic makeup of the organism changes which has no effect of the chemicals applied on them. Repeated use of the same type of pesticides to control a specific pest can cause changes in the genetic makeup of a pest that leads to another form of pest which causes pesticide resistance in the new type of pest so we can say that mutation is the main cause of resistance in pests.
What protein function listed here suggests that most enzymes are proteins?
A) provide structural support
B) transport substances inside the cell and between cells
C) communicate signals within the cell and between cells
D) speed up chemical reactions
E) control cell growth
The protein function listed here which suggests that most enzymes are proteins is that they speed up chemical reactions. That is option D.
Proteins are one of the classes of food that contains nitrogen in addition to carbon, hydrogen and oxygen.
Enzymes are those substances that helps in the breaking down of food substances into simple, soluble and diffusible substances before they can be absorbed into the body. It speeds up chemical reactions in the body by lowering the activation energy.
Enzymes are often referred to as proteins because proteins speeds up biological processes (chemical reactions) which is the same function performed by an enzyme in a living organism.
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Nuclear reactors do not create energy, instead they convert
Answer: The answer is A. Hope this helped
The soil around a lilac bush was watered with a solution containing
radioactive phosphorus. Several hours later, radiation was detected in it’s
branches. Through which structures did the radioactive phosphorus read
the branches?
A. stomata
B. guard cells
C. xylem vessels
D. phloem vessels
Answer:
I think its D
Explanation:
Start a discussion on Homeostasis. List facts and opinions, then compare and contrast.
Answer:
- Homeostasis is the ability of living systems to maintain a steady and uniform internal environment to allow the normal functioning of the systems.
- It is the tendency to achieve equilibrium against various natural and environmental factors.
- Homeostasis results in a dynamic equilibrium, where continuous changes keep on taking place, and yet steady conditions are maintained.
- Homeostasis is mainly involved in managing various internal variables of the living system like body temperature, pH of various fluids, the concentration of different ions, and the body sugar level.
- A number of regulatory mechanisms are employed to resist changes in the body against environmental and bodily factors.
- Homeostasis can be maintained by separate organs or by the entire body at once.
Maintaining homeostasis/Homeostasis Mechanisms
Homeostasis is maintained by a complex system that consists of individual units working in a particular sequence to balance a given variable. All homeostasis mechanisms consist of four separate units, which are:
1. Stimulus
The stimulus is something that results in changes within the system involving the variable.
The stimulus represents that the variable has moved away from its normal range, initiating the process of homeostasis.
One example of this is the increased temperature of the body above 37°C due to various causes. The increased temperature indicates that the temperature of the body has gone higher than its higher range.
2. Sensor/ Receptor
The sensor or receptor is the sensing unit of homeostasis, where it monitors and responds to the changes in the body.
The changes in the system are realized by the sensor, which then sends the information to the control unit.
The nerve cells and receptors like thermoreceptors and mechanoreceptors are examples of sensor/ receptors.
3. Control unit
Once the information is sent to the control unit, it tallies the changed value to its normal value.
If the value is different from the normal value, the control center activates the effectors against the stimulus.
The thermoregulatory unit in the hypothalamus of the brain that controls the temperature of the body is an example of the control unit.
4. Effector
Effectors can be muscles, organs, glands, or other similar structures that are activated as a result of the signal from the control unit.
An effector is a target which is acted upon by the control unit to bring the value of variable back to normal.
The effector essentially counteracts the stimulus to nullify its effect.
In the case of thermoregulation, the sweat glands are effectors that are acted upon by the thermoregulatory unit to produce sweat so as to bring the value of body temperature back to its normal value.
HELP!!!
A source of pollution that comes from one, identifiable place is what type of pollution?
1. Point source of pollution
2.Nonpoint source of pollution
Answer: Point sources of pollution
Explanation:
The U.S. Environmental Protection Agency (EPA) defines point source pollution as “any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack.” Factories and sewage treatment plants are two common types of point sources.
Pls help I’m literally so confused
Answer:
IT IS D
Explanation:
i did this and it was d
Answer:
D
Explanation:
Pablo and Johanna have to do a yearlong study for their biology course. After some discussion, they decide to try comparing their dogs and the diet that they feed them. Each has a dog from the pound, and both dogs are less than one year old. Pablo feeds his shepherd-mix dog a special diet of wet and dry foods from the local vet, while Johanna uses generic dry kibble from the supermarket for her bulldog. They want to see which diet results in bigger, healthier, faster-growing dogs. The reason the instructor gives them will include the fact that they have too many ______
Answer:
The correct answer is - variables that they didn't control and not enough replicates
Explanation:
In this particular case, Pablo and Johanna using too many variables in their experiment or research, All the variables used, are not controlled and with time these variables can not be replicated again on experiment groups.
They did not select a particular age or weight of dogs, the diets are different and they feed dry kibble to only one dog. There are so many variables and for a better result experiment, all variables should be controlled only the independent variable is permitted to manipulate.
Define the following terms
=>Cell
=>Mitochondria
=>Nucleus
Thank U
Answer:
the cell is the smallest living unit of life
the mitochondria is the organelle that aids in the produ ruin of ATP through aerobic respiration
the nucleus is the membrane bound organelle that's found in eukaryotic cells
thank u is from Thank u Next by miss Ari
Explanation:
=>Cell: cell is defined as basic,structural and functional unit of life.
=>Mitochondria : mitochondria is power house of plant cell.
=>Nucleus: nucleus is a part of cell responsible for cell division and for reproduction.
ill give brainly pls help
Explanation:
C: x25 for sure for sure...
What are the major physical barriers to using solar cells and modules?
Per my research, there are no barriers to using solar cells and modules, and that's why solar has been the majority of new power installed for several years now.
Explanation:This is what I found while researching but if I am incorrect please correct me. Hope this helped somewhat and have a good one!
( ◑‿◑)ɔ┏--┑٩(^◡^ )what two types of cells contain chloroplast
Answer:
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis
Explanation:
How does the circulatory system work as a defense system?
Answer: It provides protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against foreign microbes and toxins. Clotting mechanisms are also present that protect the body from blood loss after injuries.
Answer:
The human circulatory system has a complex network of blood vessels that reach all parts of the body. This extensive network supplies the cells, tissues, and organs with oxygen and nutrients, and removes carbon dioxide and waste compounds.
hope this helps!
Explanation:
What are the answers? plzz help
How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?
Answer:
Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.
Explanation:
New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.
Which two phrases best describe vascular tissue in plants?
O A. Contain cells that connect to form pipes
B. Cover the outside of plants
O C. Transport water and food
O D. Contain root hair cells and guard cells
Answer:
These 2 might be the best answers:
A. Contain cells that connect to form pipes
C. Transport water and food
In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.
Answer:
3
Explanation:
Heterozygous mice at both loci would be BbAa genotype.
B (black) is dominant over b (white) but the presence of A results in agouti.
Crossing two heterozygous:
BbAa x BbAa
Progeny
9 B_A_ - Agouti
3 bbA_ - agouti
3 B_aa - Black
1 bbaa - white
Hence, 3 out of 16 progeny will be black in color.
See the attached image for the Punnet's square analysis of the cross.
No decorrer das semanas, a lua apresenta diferentes aspectos. A causa para essas mudanças na aparência do satélite da terra é: A) a sombra da terra refletida sobre a lua. B) o movimento de rotação da lua em torno do seu próprio eixo. C) os raios solares que incidem na superfície da lua. D) a translação da lua ao redor da terra.
Answer:
C) the sun's rays that fall on the moon's surface.
Explanation:
The moon has different aspects and appearance because of the sun's rays that fall on the moon's surface. The shape of the Moon does not change itself, it occurs due to the sunlight. We only see that part of moon which is lit by the Sun. The phases of moon occur because the Sun lit different parts of the moon when the Moon revolves around the Earth so we can say that sun rays are responsible for the changing of shapes of the moon.
Company's of the innate response include
A. The B cells and T cells
B. the skin and general immune cells
C. the effector cells and T cells
D. the antibodies and memory effector cells
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Katie designed an experiment using a paint roller pan, sand, and water. The steps of the experiment are listed below.
Put 3 inches of moist sand on a paint roller pan.
Make a beach by scooping the sand towards the higher portion of the pan.
Pour water into the deeper end of the pan.
Tap on the water gently for 2 minutes to create waves.
Observe how the sand is displaced by the waves.
Katie’s experiment most likely represents the interactions between the
ocean and geosphere
geosphere and biosphere
atmosphere and biosphere
cryosphere and ocean
Can only one help me :( I really need help, my life is messed up
Answer:
I think the answer would be the fourth one.
A low pressure system moves across an area. What kind of weather change do you think you can you expect
A low pressure system would cause storms to develop- things like increasing wind speed, higher temperatures.
What is heat?........
Hi There ! Well let's comprehend the topic a bit better and let me walk you through...
Heat!We normally use heat to make food A cup of coffee in the morning or When we are doing our backyard hangouts we use heat to make Yummy steak!Heat isnt always just used to make food!We use heat to Warm up our houses ! Like a chimney we make heat to warm up our houses! Or some people use furnaces it also produces heat and warms up your room or house! Well now that we know what we use it for ....What is heat?
Of course Heat!
Heat is The energy that transfers to many different entities With a slight or major temperature difference!Please take in mind that heat only transfers to objects that are cooler than heat itself!Which means that it is energy that is transferred (or that flows ) from one object or system to another!
More info!
What are the 3 types of heat?Conduction, Convection, and Radiation.Heat can be measured in Btu, calories or joules what we use to measure heat is hermometers and pyrometers!
Hope this helps!
-Tobie the Dog <3
Joseph sets up an experiment growing corn in three containers. Each container has the same amount of
potting soil and fertilizer. Each corn plant is five centimeters (cm) tall. The containers are all placed so thatthey
receive the same amount of light. All of the plants are grown at the same temperature. The plants are
watered once a week: container #1 receives 10 ml of water, container #2 receives 20 ml of water, and
container #3 receives 30 ml of water. Joseph measures the growth of each plant for six weeks.
Which hypothesis is being tested?
The amount of water supplied will affect plant growth.
The temperature will affect plant growth.
The type of fertilizer will affect plant growth.
The amount of light exposure will affect plant growth.
Answer:
The amount of water supplied will affect plant growth is the hypothesis being tested.
Explanation:
Because that is the only variable being altered or changed, every other variable remains consistent. In any experiment what your testing is what's altered between each subject or test group.
see cause i dont understand this at all
What is the main function of the nervous system?
A. regulating sleep
B. preventing accidental poisoning
C. Controlling the body's actions and reactions
Answer:Controlling the body's action's and reactions.
Explanation:When you get nervous, your body reacts to it.
Answer:
C. Controlling the body's actions and reactions
Explanation:
the nervous system is the center of all mental activity including thought, learning, and memory.