Answer:
Explanation:
The ground squirrels will dig into the ground. This will break up rocks underground or bring the rocks to the surface, where it is exposed to other weathering forces.
Janine’s hands are larger than her father’s hands. Which explanation can account for the difference in hand size between father and daughter?
Janine’s large hands may be the result of a genetic mutation.
B
Janine inherited her mother’s hand size.
C
The difference in hand size may be due to an environmental cause.
D
Though some of the above are more likely than others, all of the above are possible explanations.
Answer:
I think it is either D or A
Explanation:
5. Radioisotopes
Radioisotopes are isotopes that are radioactive—they spontaneously emit energy (or radiation) when their nucleus breaks down. The term for this process is radioactive decay. When the process involves a change in the number of protons in the nucleus, the atom can change into another element. In one type of radioactive decay, a neutron in the nucleus splits into a proton and an electron. This split decreases the number of neutrons by one and increases the number of protons by one, but since protons and neutrons have approximately the same mass, the mass number stays the same. Since the number of protons changes, the atom becomes a new element.
Carbon-14 has 8 neutrons and 6 protons. When this radioisotope undergoes the radioactive decay process discussed above, it becomes nitrogen-14.
The number of protons in nitrogen-14 is?
Answer:
7
Explanation:
The number of proton becomes 7 in nitrogen- 14 because there is one proton increase in the nucleus as a result of radioactive decay. There are 6 number of protons and 8 number of neutron in the nucleus of carbon-14 isotope. when the radioactive decay occurs, there is decrease occur in neutron number by removing one neutron and number of proton increases in the nucleus due to addition of one proton so that's we can say that the number of proton in nitrogen-14 is 7.
Which two elements, in looking at their atoms, have a total of 51 protons between them?
Question 1 options:
Magnesium and Aluminum
Lithium and Scandium
Tin and Hydrogen
both A and B
Answer:
Atomic Mass 121.76 atomic mass units
Number of Protons 51
Number of Neutrons 71
Number of Electrons 51
9 more rows
The two elements, in looking at their atoms, have a total of 51 protons between them are Magnesium and Aluminum and Lithium and Scandium so option d. both A and B.
What are protons?
The protons are + charges particles found in the nucleus of the atoms.
NO. of protons in :
Magnesium and Aluminum- Magnesium has total of 12 proton and Aluminum has 13 total protons. Lithium and Scandium- Lithium has 3 and Scandium has 21So total no. of protons= 12+13+3+21= 50.
Thus it lies in between total of 51 protons in the periodic table.
To read about Lithium refer link :
https://brainly.com/question/20792570
#SPJ1
Distinguish between an acid and alkaline slant?
Answer:
Acid slant: yellow, fermentation of glucose and lactose and/or sucrose. High concentration creates excessive acid formation
Alkaline slant: red, limited glucose in the medium and limited acid formation.
The pH of acids is less than 7. Alkalis have a pH more than 7 The pH of neutral substances is 7. If metal oxides are soluble in water, they are alkaline. Non-metal oxides are acidic, if soluble in water.
What are acids?An acid is a molecule or ion that can either donate a proton (Bronsted-Lowry acid) or form a covalent bond with an electron pair (Lewis acid). The proton donors, also known as Bronsted-Lowry acids, are the first type of acid.
Only dextrose fermentation produces an alkaline/acid (red slant/yellow butt) reaction.
The fermentation of dextrose, lactose, and/or sucrose is indicated by an acid/acid (yellow slant/yellow butt) reaction.
An alkaline/alkaline reaction occurs when as a result, carbohydrate fermentation does not occur.
The presence of red (alkaline) in the slant and butt indicates that the organism being tested is a nonfermenter.
The formation of hydrogen sulfide results in a black precipitate in the butt of the tube. The splitting and cracking of the medium indicates gas production.
Thus, these are the basic difference between acid and alkaline slant.
For more details regarding acids, visit:
https://brainly.com/question/14072179
#SPJ2
In one or two sentences, explain how cats and dogs, both mammals, could be classified as distinct animals. What characteristics set them apart from one another?
Answer:
Cats and dogs are both mammals because they have hair, are warm-blooded, and nourish their young with milk. Dogs and cats are distinct species, incapable of producing offspring together because of the many differences in their genome.
Explanation:
i hope this was helpful!
Mammals are warm-blooded vertebrate(backbone) animal distinguished by hair or fur on their body.
Mammals give birth to younger ones.Female mammals produce milk in their mammary gland to feed the younger ones.Examples of mammals includes, Huma being, lion, dog, tiger, cat, horse, goat, cow etc.
Since, cats and dogs are both mammals, the difference between them is the genome.Genome is the complete genetic information (DNA or RNA) of an organism.Cats and dogs have different genetic information.
Read more:
https://brainly.com/question/24110071
Geothermal electricity-generating plants produce
Your answer:
ash.
methane.
O carbon dioxide.
no excess heat.
no greenhouse gases.
Answer:
3/C. carbon dioxide
Explanation:
ASAP Name one challenge we need to overcome by using solar panels
Answer:
It actually Polutes the enviornment more to own solar panels. This Is caused by the production and the dismemberment of the way its made.
Explanation:
Solar panels are composed of photovoltaic (PV) cells that convert sunlight to electricity. When these panels enter landfills, valuable resources go to waste. And because solar panels contain toxic materials like lead that can leach out as they break down, landfilling also creates new environmental hazards. The potential environmental impacts associated with solar power—land use and habitat loss, water use, and the use of hazardous materials in manufacturing—can vary greatly depending on the technology, which includes two broad categories: photovoltaic (PV) solar cells or concentrating solar thermal plants (CSP).
Not really a homework question, just curious because I couldn't find an answer on a search engine.
I found a small, 6 legged, black bug in my backyard. In fact, they are everywhere in my yard, it doesn't annoy me whatsoever. It is a harmless bug, as I have interacted with them before. Can anyone tell me what bug it is?
Answer:
palo verde beetle
Explanation:
this was the closest match to the beetles I saw I think it is also called a black carpet beetle.
1. What is the main cause of cancer?
Answer the question and you will get Brainliest :)))))
(a) troposphere
The atmosphere has five different layers that are determined by the changes in temperature that happen with increasing altitude. Living at the surface of the Earth, we are usually only aware of the events happening in the lowest layer, the troposphere, where all weather occurs
Cilia are involved in the transfer The genetic information from one bacterial cell to another
Answer:
False.
Explanation:
No, Cilia are not involved in the transfer of the genetic material from one bacterial cell to another. The pili are the structure which is responsible for the transfer of genetic material from one bacteria to another. This transfer can only occur for those types of bacteria that possess a special plasmid that is responsible for the formation of pilus which leads to the transfer of genetic material. If the special plasmid is not present so there will be no tranfer of genetic material from one bacteria to another.
Which set of organisms would belong to the Eukarya domain?
Answer:
All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.
Answer:
All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.
Explanation:
penge like
Elevation is to land as _______________ is to water.
rain
river
depth
moisture
Answer:
depth
Explanation:
A researcher investigates a blood disease carried by birds she isolates an organism from the blood of an infected bird she finds that the organism is unicellular and has a nucleus a cell wall and the ability to produce spores what kingdom does the organism belong to
Answer:
The organism belongs to the Protista kingdom as it is unicellular, has cell walls, and has the ability to produce spores.
HELP ASAP HELP.......
Answer:
energy must equal out
Explanation:
obvious
5. What are the other names and functions of ethyl alcohol?
Answer:
Ethanol, also called ethyl alcohol, grain alcohol, or alcohol, a member of a class of organic compounds that are given the general name alcohols; its molecular formula is C2H5OH.
Answer:
Ethyl alcohol is known as pure alcohol or Ethanol.
It can be used for the making of alcoholic beverages like beer and in medicine as a solvent.
During which stage of the cell cycle does the
replication of DNA take place?
Answer:
S phase
Explanation:
DNA replication occurs before the cell actually divides.
Which of the following is NOT a rapid (fast) change in Earth's surface? *
1 point
landslides
volcanoes
deltas
earthquakes
HELPPPPP PLZ NEED IT BY TODAY PLLZZZZZZ 10 PIONTS
Answer:
delta
Explanation:
deltas take time to cause changes in the earth's surface as it takes time for water to erode and change things. volcanoes takes minutes to burn and ruin anything in its path, and landslides destroys everything in its path as well immediately.
A rapid or fast change can be defined as one that occurs quickly within a short amount of time.
Among the given example of changes, the types of changes are as follows:
Landslides - It is a result of imperceptive downslope movement and can occur within 10 seconds.Volcanoes - The eruption of volcanoes takes only a few seconds.deltas - The slow and steady flow of rivers form deltas and may take up to thousands of years.Earthquakes - It occurs within a few seconds after the fault ruptures and the ground shakes.Thus, the change that is not rapid is the formation of deltas.
https://brainly.com/question/20639139
1. Which of these organisms provides the most energy in a typical forest ecosystem?
birds
lynx
moose
trees
Answer:
D. trees
Explanation:
trees are everywhere are really great for many things
Answer:
I believe the answer should be trees
Which class of Lever is being described if you are standing on tiptoes and if: The Fulcrum is at the metatarsal and phalanges, which is at one end of this lever on the anterior side of the body. The Load is your body weight which is in the middle of this lever. The Effort is exerted by the gastrocnemius and soleus muscles at the calcaneal (Achilles') tendon on the other side of this lever on the posterior side of the body.
Answer:
Second class lever
Explanation:
A second class lever is when the resistance ( load/weight ) is placed in between the axis ( Fulcrum which is formed by the metatarsal and Phalanges ) and the force ( Achilles tendon ) that is applied to the lever. hence the class of lever being described is a second class lever
There are three classes of lever ( 1st class, 2nd class and third class ) but The most common lever found in Humans are the 3rd class levers. but standing on tiptoes by an individual is a perfect example of a 2nd class lever found in a Human.
The Load being the body weight being and in the middle of this lever is
referred to a the second class lever.
The second class lever has the load in between the effort (force) and the
fulcrum. A common example is the wheelbarrow which has the load in the
middle.
In this scenario, the load which is the body is between the
effort(gastrocnemius and soleus muscles) and the fulcrum is the phalanges
which is a characteristic of a second class lever.
Read more on https://brainly.com/question/23211231
write out the pathway that a drop of blood takes, starting in the right ventricle. As you describe the path, include the names of the blood vessels and the valves, and indicate if the blood is oxygenated or deoxygenated g
Answer:
The correct answer is - Right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, aorta, arteries, arterioles, capillaries, venules, veins, vena cavae
Explanation:
Throughout the vascular system or cardiovascular system, the drop of deoxygenated blood moves through right atrium and right ventricle to the lungs within the pulmonary arteries. Then the oxygenated blood transfers via pulmonary veins t the left atrium of the heart that pumps the oxygenated to the rest of the body by the left ventricle through the aorta.
Arteries help in the flow of the systemic circulation then blood moves from arterioles to capillaries. The deoxygenated blood is returned through the veins to the heart that come to the superior and inferior vena cava and back to right atrium and cirlculation repeat again.
A researcher performs an experiment to test a hypothesis that involves the nutrients niacin and retinol. She feeds one group of laboratory rats a daily diet of precisely 125.6 units of niacin and 5,400 units of retinol. She uses two types of commercial pellet food. Food A contains 0.86 units of niacin and 30 units of retinol per gram. Food B contains 0.66 units of niacin and 40 units of retinol per gram. How many grams of each food does she feed this group of rats each day
Answer:
- 100 grams of food A (x)
- 60 grams of food B (y)
Explanation:
According to this question, the group of laboratory rats are being fed a daily diet of:
- 125.6 units of niacin and 5,400 units of retinol
Let x represent the number of grams needed for food A.
Let y represent the number of grams needed for food B.
This means that:
Food A: Niacin = 0.86x, Retinol = 30x
Food B: Niacin = 0.66y, Retinol = 40y
Since there are 125.6 units of niacin fed to the rats in total, then;
0.86x (A) + 0.66y (B) = 125.6
Since there are 5400 units of retinol fed to the rats in total, then;
30x (A) + 40y (B) = 5400
Solving these two equations simultaneously using elimination method:
0.86x (A) + 0.66y (B) = 125.6 ........(eqn 1)
30x (A) + 40y (B) = 5400 ............ (eqn 2)
Multiply eqn 1 by 30 and eqn 2 by 0.86
30 × 0.86x + 0.66y = 125.6
0.86 × 30x + 40y = 5400
25.8x + 19.8y = 3768 ............ (eqn 3)
25.8x + 34.4y = 4644 ........... (eqn 4)
Subtract eqn 3 from eqn 4
14.6y = 876
Divide both sides by 14.6
y = 876/14.6
y = 60
Substitute value for y (60) into eqn 2
30x + 40y = 5400
30x + 40(60) = 5400
30x + 2400 = 5400
30x = 5400 - 2400
30x = 3000
x = 3000/30
x = 100
Therefore, she feeds the group of rats 100grams of food A (x) and 60 grams of food B (y).
What type of amino acids would you expect to find in the transmembrane portion of a membrane
protein?
Answer:
The most common tertiary structures of these proteins are transmembrane helix bundle and beta barrel. The portion of the membrane proteins that are attached to the lipid bilayer consist mostly of hydrophobic amino acids.
Explanation:
.......................
Base excision repair is responsible for fixing (select all that apply): Group of answer choices individual damaged nucleotides that minimally impact the helix structure. double stranded breaks. single stranded breaks. individual damaged nucleotides that cause a major impact to the helix structure.
Answer:
-- individual damaged nucleotides that minimally impact the helix structure.
-- single stranded breaks
Explanation:
The Base excision repair is popularly known as the BER. It is defined as the cellular mechanism which repairs the DNA that are damaged throughout the cell cycle. It helps in correcting the the small base lesions which do not distort the helix structure of the DNA significantly. It is also responsible for fixing the single stranded breaks of the DNA.
can you please help me
Answer: 15. Oxygen. 16. Cortex. 17. epiglottis
Explanation:
should humans be used as subject for experiment
Answer:
Human experimentation refers to the use of human beings as experimental subjects. A subject is defined as an individual who is observed or experimented with by an investigator; an investigator is a qualified individual who conductsresearch. Humans have long been used as subjects for a variety of experiments.
Explanation:
Please Help me with Question 14 and 15
Answer: 14. Kidneys. 15. D brainliest??
Explanation:
Mercury-containing wastes are exempt from hazardous waste regulation as long as they are recycled per the Universal Waste Rule.
A) True
B) False
Answer:
It should be option a
Explanation:
It should be option a
ATP is chemical energy that all cells use.
O True
O False
Answer:
true
Explanation:
Adenosine triphosphate is broken into adenosine diphosphate, giving off energy in the process. This occurs during both cellular respiration and photosynthesis.
Answer:
TRue
Explanation:
ATP is the energy carrying molecule that is found in the cells of all living things
What are two natural processes in which ammonia is created?
