Contour farming is the correct answer, as it involves plowing and planting along land contours to reduce soil erosion and prevent soil depletion.
The method used to prevent soil depletion is b- Contour farming. Contour farming involves plowing and planting crop rows along the natural contours of gently sloping land, which helps to slow water runoff, inhibit the formation of channels of water, and limit soil erosion. This practice is particularly effective on slopes in the 3-8% range. Other soil conservation techniques include terracing, strip cropping, using cover crops, and conservation tillage, each of which contributes to reducing soil loss and enhancing soil fertility.
An unconformity is _____.
a layer of sedimentary rocks
an intrusion
a layer of rocks with unusual fossils
a gap in the rock record
Two different species can occupy the same _____, but each will have its own _____.
Answer: 1. Habitat
2. Niche
Explanation:
Two different species can have a same habitat. An habitat is a place where an organism survive and completes it's life cycle. But they cannot have the same niche. A niche is the functional role that an organism plays in it's habitat. Like the way it derives it's food, choice of mating season, and others.
According to competition exclusion principle if the two different species occupy the same niche. The one which is more competitive and superior over the other derives all the resources. Thus the inferior species is excluded from the environment or occupied area.
When a sperm cell penetrates an egg and the two cells fuse together, a diploid zygote forms.
True False
The step in the scientific method in which a scientist compares experiment results with a hypothesis is___.
a. analysis
b. communication
c. observation
d. question
What allows seed plants to carry out long distance reproduction?
Seed plants can carry out long-distance reproduction primarily due to the development of seeds.
Seeds are highly specialized structures that encase and protect the embryo, along with a supply of stored nutrients, within a tough outer coat.
This adaptation allows seed plants to disperse their offspring far from the parent plant. Various mechanisms aid in seed dispersal, such as wind, water, animals, or even explosive mechanisms in some cases.
The ability of seeds to withstand harsh conditions and remain dormant for extended periods enables them to travel long distances and establish new populations, increasing their chances of survival and successful reproduction in diverse environments.
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What reaction prevents more than one sperm from binding to an oocyte during fertilization?
Final answer:
The reaction preventing more than one sperm from binding to an oocyte during fertilization is composed of a fast block altering the membrane potential and a slow block changing the membrane structure to release proteins that inhibit additional sperm fusion.
Explanation:
The reaction that prevents more than one sperm from binding to an oocyte during fertilization involves two key mechanisms activated by the oocyte. Once the first sperm fuses with the oocyte, a fast block to polyspermy occurs, in which the membrane potential of the oocyte alters quickly, often called a "wave of negativity." Subsequently, a slow block follows, involving a change in the membrane structure itself, which releases proteins that prevent other sperms from fusing with the oocyte. These blocks are essential; without them, polyspermy could occur, leading to a nonviable embryo due to having an incompatible triple set of chromosomes.
The roman numeral v indicates the ________ nerve.
The classification of a puma is given below. What is the puma's order?
Animalia, Chordata, Mammalia, Carnivora, Felidae, Puma, concolor
Puma
Animalia
Carnivora
Chordata
Biodiversity enhances ________ because it provides genetic diversity and the potential for developing more productive food crops that are disease resistant and adaptive to drought.
For older adults and previously inactive individuals, exercise intensity should fall closer to what percentage of the maximal heart rate?
Which is the role of the gallbladder
The role of the gallbladder is to store the liquid produced by the liver.
ow do scientists continue to gain a better understanding of the structure of atoms?
By studying atoms under a large microscope
By conducting experiments that expose their properties
By examining only the largest atoms
By splitting them apart
You have arrived at the scene of a motor vehivle collision to find that there are several crit
Roly-poly bugs will move around in no particular direction until they find a suitable moist spot this kind of random movement in animals is known as what
Answer:
Kinesis
Explanation:
Innate behaviours are behaviours that occur naturally in animals in response to external stimuli. These reflexes, taxis and kinesis.
Reflex actions are actions that occur involuntarily in response to external stimuli.
Kinesis is a non directional movement of organisms in response to external stimuli.
Taxis is a directional movement of organisms in response to external stimuli. It could be towards the stimuli or away from it.
In this case, the roly-poly bugs move aound in no direction until they find a suitable moist spot. This is certainly a kinesis.
What are the three particles of an atom
The study of the similarities and differences in the embryos of different species
The study of the similarities and differences in the embryos of different species is called comparative embryology.
What is comparative embryology?
Comparative embryology delves into scrutinizing and contrasting embryos from diverse species, unraveling the intricacies of their developmental processes, structures, and sequences. This field intricately examines the parallels and disparities in the initial phases of growth among organisms.
Through meticulous examination of embryonic progression across species, scientists glean insights into evolutionary connections and unravel threads of shared lineage. This discipline unveils common traits among distinct organisms, shedding light on their evolutionary narratives and interconnectedness.
Furthermore, it aids in deciphering the mechanisms and pathways of development, elucidating their variations or similarities amid different species.
Complete question:
The study of the similarities and differences in the embryos of different species is called ___
In what surgery subsection would you find the code for the incision and drainage of a nasal abscess using an external approach to the abscess?
Final answer:
The code for the incision and drainage of a nasal abscess using an external approach can be found in the Otorhinolaryngology (ENT) surgery subsection under nasal procedures.
Explanation:
The code for the incision and drainage of a nasal abscess using an external approach to the abscess can be found in the surgery subsection of Otorhinolaryngology (Ear, Nose, and Throat). Specifically, it falls under the category of nasal procedures. In the Current Procedural Terminology (CPT) coding system, this procedure is usually identified by the code range 30100-30999.
To perform the incision and drainage, the surgeon makes an external incision on the skin near the abscess and then drains the accumulated pus or fluid. This procedure helps relieve the pressure and infection caused by the abscess.
A man who carries an allele of an x-linked gene will pass it on to
The ________ layer is composed of dense irregular connective tissue whose strength and toughness results from abundant _________ fibers
Why is the fact that all cells throughout the body have complete sets of dna, a useful fact for forensic scientists?
Explain why a high-carbohydrate diet increases the time to exhaustion during intense aerobic exercise.
The measure of how a particular food affects blood glucose levels is the ______ index. glycemic glucose glycogen glyceride
The two ions that are responsible for the initial depolarization of cardiac muscle as they travel from the outside of a muscle cell to the inside of the cell are _______ ions.
Telemedicine and remote monitoring are part of a _____ _____ trend.
Telemedicine and remote monitoring are part of a digital healthcare trend. This trend, also including the sharing of digital records and a-chip technology, aims to improve healthcare quality and efficiency. These advances have resulted from an increase in demand from an aging population and improvements in technology.
Explanation:This trend is driven by advances in technology like a-chip technology and the increase of home medical tests. The digital healthcare trend also includes the sharing of digital records among health providers, aiming to improve the quality and reduce the cost of health care.
Healthcare has undergone many changes in recent times. In addition to the adoption of remote monitoring and telemedicine, there have been systemic changes like hospital mergers to improve efficiency, the rise of urgent care offices and other types of healthcare professionals, and the implementation of insurance mandates and artificial intelligence to complement and streamline healthcare processes.
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The distance, measured in degrees, north and south of the equator is referred to as _____.
the prime meridian
the arctic circle
longitude
latitude
Answer;
-Latitude
Explanation;
-The distance, measured in degrees, north and south of the equator is referred to as latitude.
-Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator. These lines are known as parallels. A circle of latitude is an imaginary ring linking all points sharing a parallel.
-The Equator is the line of 0 degrees latitude. Each parallel measures one degree north or south of the Equator, with 90 degrees north of the Equator and 90 degrees south of the Equator.
Latitude is an angular measurement that indicates the position of a location on the Earth's surface relative to the equator. The distance, measured in degrees, north and south of the equator is referred to as latitude.
The equator is defined as 0 degrees latitude and is the reference point for measuring latitude. As one moves north of the equator, the latitude increases in positive values, while moving south of the equator results in negative values.
Latitude lines, also called parallels, are imaginary horizontal lines that circle the Earth parallel to the equator. They are evenly spaced and become progressively smaller as they move away from the equator towards the poles. The maximum latitude is 90 degrees at the North Pole and -90 degrees at the South Pole.
Latitude is a geographic coordinate that determines a location's position in relation to the equator. It is measured in degrees, with 0 degrees representing the equator, positive values representing the northern hemisphere, and negative values representing the southern hemisphere.
Latitude lines run parallel to the equator and are used to establish horizontal positions on the Earth's surface.
Therefore, the distance, measured in degrees, north and south of the equator is referred to as latitude.
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You are given a clear solution of KNO3. Using 3 – 4 sentences (in your own words) explain how you would determine if the solution is unsaturated, saturated or supersaturated.
Two reasons why it is easy to harvest perlemoen
Perlemoen is reasonably easy to take available of the ocean and do not really required huge and expensive equipment. The poachers take out millions of rands worth of Perlemoen with relatively simple and cheap equipment such as wet suites, googles and flippers. The most expensive equipment they use are their boats and vehicles. In comparison with the lucrative industry the costs of poaching are low. Perlemoen are often the smaller, younger abalone of the species that are taken because they are quite simply and easier to harvest.
1. The younger perlemoen are found closer to the shoreline and often bunched together and they can get a whole whack of them at one spot.
2. The strandlopers harvested the perlemoen from the rocks during low tide without the need for diving.
A plant that reproduces sexually has flowers that contain both male pollen and a female ovary. The plant cross-pollinates and forms a fleshy fruit around its seeds. Which of the following is the most logical conclusion about the classification of this plant?
Coniferophyta
Anthophyta
Cycadophyta
Gnetophyta
Answer: It is the anthophyta.
Explanation: Taking the test right now
Veins returning to the heart can close to prevent the backflow of blood. Which component in the veins contributes to this process?
Final answer:
The one-way valves in veins prevent backflow of blood, ensuring unidirectional flow toward the heart and are aided by muscle contractions and venoconstriction.
Explanation:
The component in the veins that prevents the backflow of blood is the one-way valves. These valves ensure blood flows in only one direction toward the heart, even when the pressure within the veins is low, especially after blood has passed through the capillaries. The valves are crucial because muscular contractions can increase pressure within the veins, potentially pushing blood in the wrong direction. Instead, the valves close and prevent backflow, allowing for the unidirectional flow of blood. The action of muscle contractions, especially those of the skeletal muscles, helps push blood through these valves, aiding venous return to the heart, in a mechanism sometimes described as the skeletal muscle pump. Additionally, maintaining vascular tone through venoconstriction enhances blood flow, preventing veins from excessively distending.
Which is a condition that occurs when muscles weaken or shrink due to little use?