HELICAS
Explanation:
Helicas moves along DNA molecules breaking hydrogen bonds to between complantary base pairs
1. Where is Earth’s water located? How much is freshwater?
2.What drives the watercycle?
3.Where are the world’s major oceans? Which ocean do we live closestto?
4.Why do we know relatively little about the bottom of the ocean? What does the ocean floor look like? (think: major features)
5.Why do we have ocean currents? How do currents affectclimate?
6.What causes ocean waves
Answer: 1. Water covers about 71% of the earth's surface. 97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling). 3% of the earth's water is fresh. Only about three percent of Earth's water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams. Earth's water is (almost) everywhere: above the Earth in the air and clouds, on the surface of the Earth in rivers, oceans, ice, plants, in living organisms, and inside the Earth in the top few miles of the ground. 2.The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor. ... The vapor rises into the air where cooler temperatures cause it to condense into clouds. 3. Historically, there are four named ocean basins: the Atlantic, Pacific, Indian, and Arctic. However, most countries - including the United States - now recognize the Southern (Antarctic) as the fifth ocean basin. The Pacific, Atlantic, and Indian are the most commonly known. Atlantic Ocean, body of salt water covering approximately one-fifth of Earth's surface and separating the continents of Europe and Africa to the east from those of North and South America to the west. 4. Marine creatures in shallower waters provide nutrients to deep-sea environments, as dead organisms “rain down” to the bottom. Fewer organisms in shallow waters means less food at the bottom. Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises. 5. Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. ... These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them. By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places. Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface. Some currents flow for short distances; others cross entire ocean basins and even circle the globe. By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. 6. Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. ... The gravitational pull of the sun and moon on the earth also causes waves. Ocean waves are caused by wind moving across the surface of the water. The friction between the air molecules and the water molecules causes energy to be transferred from the wind to the water. This causes waves to form. brainliest??
Explanation:
A stable ecosystem is characterized by having A)predators that outnumber their preyB)a continual input of energyC)limited autotrophic nutritionD)no competition between species
Answer:
B) a continual input of energy.
Explanation:
An ecosystem can be defined as the natural living habitats of both living and non-living organisms, in which they interact with one another. Essential services such as plant pollination, water purification, nutrient cycling etc that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.
An ecosystem is generally considered to be stable if it's capable of applying self-regulating mechanisms in order to return to an equilibrium state, after an experiencing an outside disturbance or perturbation. Thus, a stable ecosystem maintains a natural balance of nutrients and energy.
In an ecosystem, producers are the living organisms that are capable of manufacturing their own food and as such can provide energy or food for the other living organisms (consumers) in a food chain. Thus, producers are mainly known as the foundation of a food chain and are at the top.
Generally, a producer gets energy from the sun and converts it into food. The cells found in producers are capable of converting the energy received directly from the sun into food through a process generally referred to as photosynthesis, converting carbon dioxide from the air, water from the soil, minerals and energy from the sun into organic nutrients.
Hence, a stable ecosystem is characterized by having a continual input of energy.
Can you explain the relationship between EPSP, IPSP and action potentials?
Answer:
EPSP and IPSP trigger action potential
Explanation:
“EPSP” means “excitatory postsynaptic potential” which occurs when +ively charged ions move towards the postsynaptic cell thereby depolarizing of postsynaptic membrane potential. IPSPs are inhibitory postsynaptic potential. Whenever the EPSPs or IPSPs changes, the , neurotransmitters bind to receptors thereby opening or closing ion channels in the postsynaptic cell and hence triggering the Action potentials which is basically nerve impulses or spikes.
Which of these are large grazers in the tundra? (Select all that apply.)
muskox
caribou
reindeer
antelope
( science but I couldn’t find the subject )
Answer:
caribou!!
Explanation:
mitchondria DNA on hair allows us to look at which side of the parents DNA?
A. Mom
B. Dad
C. Neither
D. Both
Answer:
The answer is A
Explanation:
These organelles, found in all eukaryotic cells, are the powerhouse of the cell. The mitochondria, and thus mitochondrial DNA, are passed exclusively from mother to offspring through the egg cell.
The force of gravity on an object is constant all over the earth.
True
False
Answer:
true
Explanation:
gravity has hold of alot of things
Red-green color-blindness is an X-linked recessive condition. Juliet has a bit of difficulty passing the red-green color distinction test when she tries to get her driver's license. She has two children with a man who is not color blind. Neither Juliet's son (Henry) nor daughter (Roxanne) is color blind. Henry and Roxanne have normal karyotypes. Roxanne has a son who is color blind.
Required:
a. What is Juliet's genotype for the color-blindness allele? How would you explain her partial color blindness?
b. Why aren't Henry and Roxanne color blind?
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
can someone do my last question its biology
Answer:
a
Explanation:
they drop leaves and almost hibernate for the winter, like some animals!
Answer:
I would say B cause when it's cold leafs fall off
What is lectin pathway
Answer:
The lectin pathway or lectin complement pathway is a type of cascade reaction in the complement system, similar in structure to the classical complement pathway, in that, after activation, it proceeds through the action of C4 and C2 to produce activated complement proteins further down the cascade.
4. What are carbon dioxide levels now? How often in the past 650,000 years have they been that high?
short answer please:)
Answer:
Explanation:
Scientists at the Mauna Loa observatory in Hawaii say that CO2 levels in the atmosphere now stand at 387 parts per million (ppm), up almost 40% since the industrial revolution and the highest for at least the last 650,000 years.
Two indicators that will help you in determining which way to mount bite-wing radiographs are (1) the curve of Spee curves _______________ toward the distal, and (2) mandibular molars have __________ distinct roots.
Answer:
The correct answer is - upward, two.
Explanation:
The bitewing radiograph (BW) is a radiography image that is used to see the crowns of the maxillary and mandibular teeth, the interproximal surfaces of the teeth, and identifying interproximal caries.
The curve of the spee is also can be seen and mount with this image the curve of the spee is start at the tip of the lower canine, rn with the buccal cusp tips of the premolars and molars and continuing to the anterior end of the ramus. it is 2-D and upward from distal. It also shows that mandibular molar teeth have two distinct roots.
A local gardener found small green aphids sucking the juices from a clover bush. This causes the clover bush to lose nutrients. What type of ecological relationship exists between the aphids and the clover bush?
Answer:
the circle of life is considered here
plant grows
bugs are born
bugs eat plants
plants regrows from seeds that are dropped
and that repeats!
Explanation:
a. nuclear energy
b. geothermal energy
c. fossil fuels
Answer:
c
Explanation:
Answer: Fossil Feuls
Explanation:
Coal, oil, and natural gas are fossil fuels that are energy that were produced from the remain of organisms that lived millions of years ago.
Madelyn was to identify cells as plant or animal. How can she pinpoint which are plant cells?
Plant cells have a rectangular shape and a cell wall, while animal cells have a circular shape and no cell wall
Question 3
Q: Which of the following is digested quickly in the body?
A. O Collagen
B. O Protein
c. O Monosacharide
D. O Unsaturated fat
Answer:
B. Protein
Explanation:
Protein is digested quickly in the body. Hence the correct option is A.
Define protein?A protein is defined as a naturally occurring, extremely complex substance which consists of amino acid residues fused by peptide bonds. Proteins are found in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.
Protein breakdown occur faster than fats and protein occurs mostly in the stomach, where stomach acids uncoil the protein strands. Pepsin, an enzyme secreted by the stomach, breaks the strands down further.
Trypsin, another enzyme, break down the protein strands into molecules containing one, two or three amino acids in the small intestine. Nearly all the protein in foods is digested, with the remaining passes through the large intestine.
For more information regarding proteins, visit:
https://brainly.com/question/10058019
#SPJ2
Al respirar el aire con el oxígeno, este entra por dos orificios llamados ____________________ recubiertos de vellosidades con células que secretan moco. b) Después el aire pasa a la ______________. (tubo que comunica además con la boca). c) Enseguida el aire atraviesa por un conducto llamado _____________ el cual es exclusivamente respiratorio. La entrada del aire está regulada por una válvula llamada ____________. d) De aquí pasa a un conducto llamado____________________ que es un tubo de 10 centímetros de largo el cual se ramifica en dos tubos llamados bronquios. e) El aire continúa por los ______________ que penetran en la parte posterior de los ______________que son los principales ___________respiratorios. f) Dentro de cada pulmón los bronquios se dividen en dos tubos más pequeños llamados _______________ los cuales se ramifican en estructuras llamadas _________________. g) En ellos el aire entra en contacto con la sangre, se produce un intercambio de gases: el oxígeno circula por el cuerpo y se expulsan el __________________ y el ______________ recorriendo el sistema respiratorio y saliendo nuevamente por las fosas nasales.
Answer:
I will help you but I don't understand the language sorryyyy
in what ways do you think plants depend on soil ? based on your observations,can you imagine how soil might depend on plants or animals?In what ways do animals including humans depend on soil?
Answer:
Plants get nutrients from the soil. The soil also absorbs moisture, so the plant may also receive water from the soil. The plant also uses the soil as a way to support itself, using roots. Plants depend on animals for extra nutrition, as animals decay and become fertilization for the plants. Animals also drop feces, which can fertilize as well as spread the seeds. Humans depend on soil as a way to grow and cultivate plants.
Explanation:
_________________________ is a process of forming proteins based on a sequence of DNA. The first step of the process in which DNA is copied into RNA is called ______________________. _______________________ is the second step, is the process of combining amino acids to form proteins. *
Answer:
Transcription, translation
Explanation:
Protein synthesis is the first blank
Transcription is the second blank
mRNA Translation is the third blank
Help plssss help pls
Answer:
5. the answer is E 100
6. the Anse is A. 0
8. the answer is D 75 probability
which factor can decrease the rate of a chemical reaction
Answer:
catalysts can decrease the rate of chemical reaction
Answer:
Temperature
Explanation:
If a group of friends visit the St. Louis Arch. Would they weight more at the top of the arch, or at the bottom?
BOTTOM
or
TOP
Answer:
bottom
Explanation:
Plant >Mouse > Snake Hawk
Based on the food chain shown above, energy in this ecosystem flows from
A. the snake to the mouse.
В. the hawk to the snake.
C. the mouse to the plant.
D. the mouse to the snake.
Answer:
D) The mouse to the snake
Explanation:
Answer:
The answer is D
Explanation:
1. What is the primary(#1) agent of erosion?
1)wind
2)running water
3)glaciers
4)gravity
Answer:
Running water.
Explanation:
running water causes the most erosion.
Imagine that a friend read this same article and summarized it by saying, "Because there are more
plants now, the amount of carbon dioxide in the atmosphere is decreasing." What is incorrect about
your friend's assessment?
Answer:
The amount of carbon dioxide in the atmosphere is increasing, not decreasing. However, it is not increasing as fast as scientists predicted it would, which they attribute to the amount of carbon dioxide absorbed by plants.
Explanation:
From plato
Which process puts carbon into the ground?
O coal burning power plant
O volcano eruption
O decaying plants and animals
O animal respiration
When beach erosion occurs you have several events that take place depending on what environmental elements are involved .What elements is most influential when it comes to abrasion ?
A:Wind
B:Snow
C:Hail
D:Lithium
Which of the following best explains why the polymerase from the species T. aquaticus is often used for PCR?
Answer:
B) T. Aquaticus polymerase does not denature at high temperatures.
Explanation:
i did it
In this food chain, Shrubs(Producer)>Deer(Primary Consumer)>Fox(Secondary.
Consumer), if shrubs have 6,000 Kcal of energy available to it, then the amount of
energy available to the Fox is....
a) 60 kcal
b) 600 kcal
C) 0.6 kcal
d) 6 Kcal
Answer:
it's b
Explanation:
take a zero away every time you move up
Sam drives an excavator at an open surface strip coal mine. Which type of coal is he most likely to collect closest to the surface?
A. anthracite
B. subbituminous
C. Ilgnite
D. bituminous
E. pitchblende
Explanation:
The right option should be c (lignite )
Which of the following is not an example of a mutagen?
1. X-ray
2. Cosmic rays
3. Shadow blow with a fist
4. Pesticides
Answer: 3
Explanation: