Answer:
A. loss of sensation to pressure and touch
Explanation:
Posterior column-medial lemniscus pathway also known as the dorsal column–medial lemniscus pathway (DMLP) is a pathway involved in recognition of sensory simulations and is found in central nervous system.
It is involved in conveying different sensations like like touch and vibration from skin and joints. Therefore, it can be said that the pathway plays significant role in perception of sensory information from different parts of the body. If any damage occurs to the pathway it can result in loss of sense of touch and vibration which is ultimately a lack of ability of a person to sense a touch or pressure in the body.
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Answer:
A. Loss of sensation to pressure and touch
Explanation:
A while mates with a blavk hen. The offspring is gray color. What is this phenomenon called
Answer:
Incomplete Dominance
Explanation:
Incomplete dominance is a phenomenon in which the alleles of two genes are not completely dominant over each other and so when they are present at the same time in an organism (heterozygous for that gene) the organism will have an intermediate phenotype that is a combination of both phenotypes.
For example: The flower color in Snapdragon can have three different genotypes as well as phenotypes. The flowers can be red, pink or white depending on their genotype. The allele for red flower (R) is incompletely dominant over allele of white flower (r). A plant with genotype RR will be red flowered and that with rr will be white flowered. However, if a plant has genotype Rr (intermediate), then the flowers will be white in which no allele was dominant over the other and both showed their effect giving a combination of two colors as Pink flowers.
Same is the case with the mating between white and black hen, where offspring was grey in color. This grey was a combination phenotype of two phenotypes.
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Which major processes were needed for the origin of life on Earth?
The major processes for the origin of life on Earth include chemical evolution, energy extraction, and information encoding and replication.
Explanation:The major processes that were needed for the origin of life on Earth are:
Chemical evolution: The early Earth produced organic molecules through processes like the Miller-Urey experiments, which simulated the conditions of early Earth and produced fundamental building blocks of life.Energy extraction: Life required a means of extracting energy from the environment. One hypothesis is that primitive organisms used chemosynthesis, obtaining energy from chemical reactions, while another hypothesis suggests that early life utilized photosynthesis, using light energy to produce food.Information encoding and replication: Life needed a way to encode and replicate information. This capability likely arose through the formation of nucleic acids, such as DNA and RNA, which can store and transmit genetic information.Which hypothesis helps to explain why all organisms share the same genetic code?
Early Earth had an abundance of volcanoes and lacked an ozone layer.
Deep-sea vents provided the energy needed for the first organic compounds to form.
Microspheres divided and share common characteristics with present-day cells.
Self-replicating RNA molecules passed on genetic information.
Answer: Self replicating
All organisms share the same genetic code because of self replicating RNA molecule passed on genetic information.
Genetic code is the term used for four bases of DNA which are A, C, G and T. These are stung together in a way that ribosomes turn them into proteins.
These genetic codons can be expressed as RNA codes of DNA codons. These genetic codes are universal and all living organisms use same genetic code.
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Find an equivalent system of equations for the following system:
2x + 4y = 4
-5x + 5y = 5
A.2x + 4y = 4
-3x - y = -1
B.2x + 4y = 4
7x + 5y = -1
C.2x + 4y = 4
7x - y = 5
D.2x + 4y = 4
7x - y = -1
Answer:
[tex]\large\boxed{D.\ \left\{\begin{array}{ccc}2x+4y=4\\7x-y=-1\end{array}\right}[/tex]
Explanation:
[tex]\left\{\begin{array}{ccc}2x+4y=4\\-5x+5y=5&\text{change the signs}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+4y=4&(1)\\5x-5y=-5\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad7x-y=-1\qquad(2)\\\\\text{The equivalent system of equations: use (1) and (2)}\\\\\left\{\begin{array}{ccc}2x+4y=4\\7x-y=-1\end{array}\right[/tex]
Answer:
A.2x + 4y = 4
-3x - y = -1
D.2x + 4y = 4
7x - y = -1
Explanation:
Given system of equations,
2x + 4y = 4 ------(1)
-5x + 5y = 5 -----(2)
x-intercept and y-intercepts of equation (1) are (2, 0) and (0, 1)
While, x-intercepts and y-intercepts of equation (2) are (-1, 0) and (0, 1)
Thus, by plotting these lines on the graph,
We get,
The intersection point of line (1) and (2) is ( 0, 1)
That is, the solution would be (0, 1),
Similarly,
Graphing -3x - y = -1, 7x + 5y = -1, 7x - y = 5 and 7x - y = -1,
We get,
A. The solution of 2x + 4y = 4, -3x - y = -1 is ( 0, 1 )
B. The solution of 2x + 4y = 4, 7x + 5y = -1 is ( -1.333, -1.667 )
C. The solution of 2x + 4y = 4, 7x - y = 5 is ( 0.8, 0.6)
D. The solution of 2x + 4y = 4, -7x - y = -1 is ( 0, 1 )
Water and Carbon dioxide are waste products released as a direct result of
(1)asexual reproduction
(2)mechanical digestion
(3)natural selection
(4)cellular respiration
Water and Carbon dioxide are waste products released as a direct result of cellular respiration. So, the correct option is (D).
What is Cellular Respiration?Cellular respiration is defined as the process in which organic fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce a large amount of energy to drive the bulk production of ATP.
The function of cellular respiration is that it provides cells with the energy they need to function. If living beings do not get the energy they need from food. All living things will eventually die, regardless of the quality and quantity of food.
In this process, oxygen is released as a byproduct which is used to break down glucose, releasing chemical energy and heat in the process. Carbon dioxide and water are products of this cellular respiration reaction.
Thus, water and Carbon dioxide are waste products released as a direct result of cellular respiration. So, the correct option is (D).
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1. the idea that the sporophyte generation and the gametophyte generation follow one another in alternating fashion alternation of generations
2. the process of changing cells or organisms from a generalized to a more specific or specialized condition; often involves a reduction of the ability to reproduce or divide and is usually not reversible meristem
3. beginning period of growth of a seed or spore; to sprout differentiation
4. the youthful, undifferentiated cells of root and shoot tips and other plant parts that produce new cells for growth vascular cambium
5. a plant that continues to grow year after year from the same plant body perennial
6. above ground part of a plant; leaves, stems, flowers, fruits, etc. shoot
7. the meristematic cells that produce new cells, increasing plant body girth; often forming a ring only several cell layers wide in woody stems and roots germination
Answer:
1. Alternation of generations
2. Differentiation
3. Germination
4. Mersitematic cells or Meristem (tissue)
5. Perennial
6. shoots
7. Vascular Cambium
Explanation:
Alternation of generations is a process in the life cycle of a plant and even algae. The alternation part occurs between the sporophyte and gametophyte. A sporophyte is formed when two haploid gametes come together forming a diploid zygote. When the sporophyte matures, it will eventually gain a reproductive organ that would release spores that are haploid spores. These spores become gametophytes. When these gametophytes start to pair up, they become sporophytes. So the cycle begins again.
The meristem is a tissue that is made up of cells called merstematic cells. They produce undifferentiated cells which can specialize into other cells to serve different purposes. Meristems are usually found in areas of the plants that grow.
Perennial means "through the years," and so they are plants that are expected to live a long life, often more than two years. These plants can grow out again from the same roots after they die, so you do not need to replant them.
The growth that starts from the seed that goes in the upwards direction is called shoots, while the growth that goes downwards are called roots. Shoots are the starting point of the growth of the different parts of the plant that are above the ground, like the stem, leaves and the like.
Differentiation is a process where cells start to acquire specific traits to do specific and different functions. Some of the cells that differentiate will not be able to reproduce new ones, some of them die, and the others skip the mitosis stage.
Germination occurs mostly in plants. It is the growth of an organism that starts from a dormant state or a seed.
As plants grow taller, they also grow wider. The vascular Cambium produces undifferentiated cells that form the bark and the woody cells which increases the girth or the wideness of the plant.
How do tides differ from waves and gravity
Answer:Tides are drive by the gravitational pull off the sun and moon.
Explanation:That is what I got.....
Answer:
Waves are caused by the winds on the surface of the water, while the tides are caused by the force of gravity from the interaction of the moon and the sun on the earth. Gravity, in turn, is a force of nature related to the attraction effects between bodies.
Explanation:
Gravity is a natural force in nature. It is responsible for the forces of attraction that exist between bodies that have mass. It is this force, which allows us to stay attached to the earth. In addition, gravity plays a fundamental role in the existence of tides in the oceans. That's because the tide occurs because of the interaction of the gravitational forces of the moon and the sun on the earth.
The waves, however, occur as a result of the winds that blow over the waters of the ocean.
Plants use the energy in _______ to make food
Answer:
The sun
Explanation:
When waves travel through water, why do the moving water particles continue to return to their starting position?
O A.
Waves transfer matter, but not energy.
OB. Waves transfer both matter and energy.
O
O c. Waves transfer energy, but not matter.
OD. Waves don't transfer matter or energy.
Reset
Next
Answer:
B. Waves transfer both matter and energy.
Explanation:
When waves travel through water, the moving water particles continue to return to their starting position because waves transfer both matter and energy.
Answer:
The correct answer is option c.
Explanation:
Conduction of a disturbance from one point to another is termed as a wave. A wave signifies the conduction of energy from one point to another via a material medium. However, a wave may or may not need any form of material medium for conduction. When a wave requires a material medium it is termed as a mechanical wave, while when the wave does not need a material medium for conduction it is termed as electromagnetic waves.
In the case of mechanical waves, the energy is conducted via the vibration of particles of the medium via which the wave passes. In the case of electromagnetic waves, energy is conducted via the vibration of magnetic or electric fields. Waves perform the role of transmitting energy from one point to another, however, in the process, no movement of matter takes place.
Why are stains such as Methylene Blue used when observing cells under the microscope?
Answer:to make them more visible
Explanation:
Stains like Methylene Blue are used in microscopy to add color to cells, enhancing the visibility and identification of important cellular structures. It also aids in differentiating and identifying pathogenic bacteria, thereby aiding in disease diagnosis and treatment.
Explanation:Stains like Methylene Blue are used when observing cells under a microscope because they add color to certain parts of the cells, which otherwise lack contrast and color in their natural state, thus making important cellular structures visible and identifiable. Specifically, the positive chromophores in basic dyes like Methylene Blue latch onto the negatively charged cell walls, making them positive stains, further enhancing the visibility of the cells.
In addition, staining methods can shed light on various aspects of cellular structure and function. For instance, a process like the Gram stain technique uses Methylene Blue as a secondary counterstain, rendering certain non-acid-fast cells blue and allowing pathogenic bacteria to be differentiated and identified. This crucial use of stains enhances the contrast in the microscopic image and helps in the diagnosis and treatment of various diseases.
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The biodiversity of cultivated crops is currently under threat from industrial
farming and climate change. The extinction of important crop plants could
cause mass starvation. Which cooperative behavior would best enable
humans to prevent this problem?
Answer:D
Explanation:Scientists Could study threaten varieties to find ways to replace them!!
A cooperative behavior which would best enable humans to prevent this problem is establishing a seed bank with a variety of seeds of different crop species.
What is a biodiversity?A biodiversity is the short name for biological diversity and it can be defined as the variety of species of organisms such as plants and animals that are living within a particular habitat on planet Earth.
In this context, a cooperative behavior which would best enable humans to either mitigate or prevent this problem posed by industrial farming and climate change is by establishing a seed bank with a variety of seeds of different crop species.
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Which of the following is a characteristic of a strong base?
O
A. It contributes OH-ions to a solution.
O
B. It contributes H+ ions to a solution.
O
C. It does not completely dissociate in water.
O
D. It is more concentrated than a weak base.
Answer:
A. it contribus OH-ions
A characteristic of a strong base is the complete ionization in solution to release OH- ions. Concentration doesn't define a base's strength; rather, it's the degree to which it dissociates in water. Acids, contrastingly, donate H+ ions.
Explanation:Among the provided options, the correct answer is 'It contributes OH- ions to a solution'. Strong bases are substances that completely ionize in solution and release OH- ions. A base can be thought of as a substance that donates hydroxide ions. On the contrary, substances that contribute H+ ions are known as acids. The concentration of a solution doesn't define whether it's a strong or weak base, but rather the degree of dissociation does. Strong bases completely dissociate, as opposed to weak bases which only partially do so.
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What is a list of non-rodent eating snakes?
What is the kindest and most handle able ?
Answer:
Ribbon Snakes, American Water Snakes and European Grass Snakes
Explanation:
These are a few snakes thaat don't eat rodents, but eat fish.
Answer:
While the largest species, the capybara, can weigh as much as 66 kg (146 lb), most rodents weigh less than 100 g (3.5 oz).The smallest rodent is the Baluchistan pygmy jerboa, which averages only 4.4 cm (1.7 in) in head and body length, with adult females weighing only 3.75 g (0.132 oz).Rodents have wide-ranging morphologies, but typically have squat bodies and short limbs.
Explanation:
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What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?
Answer:
Plant Reproduction and Life Cycle. The life cycle of a plant is very different from the life cycle of an animal. Humans are made entirely of diploid cells (cells with two sets of chromosomes, referred to as ''2n''). ... Plants, however, can live when they are at the stage of having haploid cells or diploid cells.
Explanation:
In an animal life cycle, male and female parents each create sex cells (sperm and eggs) that unite to form a fertilized egg and develop into an offspring organism. Plants, likewise, have sperm and eggs in their life cycles, but these are produced by an intermediate stage between the adult and the offspring.
Humans and ferns are similar as both fertilize to give rise to a new life while different as the haploid form of life present in the ferns life cycle and both male and female reproductive parts are present in one plant.
Life Cycle of fern:The diploid fern gives rise to haploid spores which grow and form a gametophyte plant in which the male and female reproductive systems present. Male gamete fertilizes with the female gamete to form a diploid spore (seed) which gives rise to a new fern.Human’s reproductive cycle :Human is diploid animal and male and female are clearly distinguished. Male sperm fertilizes the female egg to form a zygote which gives rise to a new human.Therefore, humans and ferns are similar as both fertilize to give rise a new life while different as the haploid form of life present in the ferns life cycle and both male and female reproductive parts are present in one plant.
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external respiration takes place in?
Answer:
External respiration takes place in the lungs
Explanation:
External respiration takes place in the lungs, in the exchange process of carbon dioxide (CO2) and Oxygen (O2). This means that in the lungs, oxygen diffuses into the blood and carbon dioxide diffuses into the alveoli (smallest functional structure of the lungs). In order to understand the difference, in the other hand we have internal respiration which occurs in metabolizing tissues, where the exchange of oxygen and carbon dioxide occurs in the cells.
External respiration is the process by which oxygen is taken in from the environment and carbon dioxide is released from the body. It occurs in the lungs.
During external respiration, oxygen from the inhaled air enters the lungs and diffuses across the thin walls of the alveoli (small air sacs) into the bloodstream.
This process is facilitated by the difference in partial pressure of oxygen between the alveoli and the blood in the pulmonary capillaries. Oxygen binds to hemoglobin in red blood cells and is transported throughout the body.
At the same time, carbon dioxide, which is a waste product produced by cells during cellular respiration, diffuses from the bloodstream into the alveoli. The carbon dioxide is then exhaled out of the body during expiration.
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Which of these is an advantage of hydropower?
A
O
A. It is expensive to build and maintain.
O
B. It has high power-plant efficiency.
O
C. It harms aquatic organisms.
O
D. It is available only in limited areas.
SUBMIT
Answer:
It has a long power-plant life span.
Explanation:
for the people whos apex is different then others
The advantage of hydropower is that it has high power-plant efficiency.
What is a hydropower?
Hydropower is the generation of electricity by help of movement of water.It accounts for almost 20% of world's electricity.Hydropower is generated by turbines that are turned by moving water.Advantage of hydropower-
Renewable and green energy source.Low level of pollution.Domestic power source.High power plant efficiency.Hence, we can conclude that a hydropower is advantageous in having high power-plant efficiency.
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Patrick wrote the following examples of homeostasis:
Example 1: An athlete sweats and pants after running a race
Example 2: Animal fur stands erect during cold weather
Example 3: Blankets are used to keep warm in winter
Example 4: The hair on our skin stands up straight when we feel cold
Answer:
C, blanket.
Explanation:
It can keep you warm but it isn't very natural.
6. The skeletal structure shown would be classified as part of which of the following?
A. Axial skeleton
B. Respiratory Skeleton
C. Appendicular Skeleton
D. Protective Skeleton
Answer:
A
Explanation:
because it's among the skeleton system
Which is a result of a seasonal change (meaning a change that happens over
and over at a certain time of yean?
A Chipmunks sleeping underground through the winter
B
Mice growing larger due to having a large food supply
C
Grasses being killed by the spread of a virus
D
Plankton dying due 1 an oil spill in the ocean
Answer:
A. Chipmunks sleeping underground through the winter
Explanation:
A seasonal change in the behavior of a living organism is a change that occurs every year at a particular time. The reasons for the occurrence of such changes are so that the organism has advantage in survival in the environment. In this case we have the chipmunk that sleeps underground through the winter. We have an animal which exhibit a seasonal change every year, during the winter period. The reason for this is that the chipmunks have very quick metabolism, so if they are active during the winter they will starve because of lack of food. Instead, the chipmunks have evolved to hibernate during the winter, thus slowing down the work of their hurt during the winter and sleep, until the spring comes.
Answer:
Chipmunks sleeping underground through the winter
Explanation:
apex
The biome with the most diverse communities of organisms is the
Rain forest
Deciduous forest
Prairie
Coniferous forest
The biome with the most diverse communities of organisms is the rainforest.
Answer:
rain forest
Explanation:
two human activities that could contribute to the introduction of invasive species.
Answer:
Invasive species or alien species is the term referred to the organisms which are introduced in an ecosystem due to man made or any environmental activity. Humans play primary role in the introduction of invasive species in a certain ecosystem.
Explanation:
These activities may include the ships and boats flowing in aquatic regions of the world that carry novel aquatic organisms in their ballast water and propellers respectively. The small insects present into their shipping pallets and wooden parts are carried from one place to another place where they cause threat for the availability of food and nutrients to the already existing populations.
Another human activity that can contribute to the introduction of invasive species is the enhanced fuel consumption which leads to environmental pollution around the globe. This environmental pollution gets so immense in some areas that it can make the survival of existing species difficult and thus they move to new location for their survival.
Therefore, it can be seen that human activities have potential role in the spread and introduction of invasive species.
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How is a scientific law different from a scientific theory?
1.
A theory is why something happens and a law is how something happens.
2.
A theory is used for biology and chemistry and a law is used for physics.
3.
A theory becomes a law after a long period of time has passed.
4.
A theory cannot be disproved but a law can be disproved.
Answer:
1. A theory is why something happens and a law is how something happens.
Explanation:
Whenever scientists or people studying scientific disciplines face any scientific question, they try to solve it through proper scientific method. Two of the most important steps of scientific methods are to propose a theory as an answer of the question and after it formulate a law if it can be formed.
In simple terms we can think of a theory as an logical answer that why a certain phenomenon occurs. On the other hand a law is a statement that shows how a phenomenon occurs and it can help in predicting about the phenomenon. Laws are relatively general as compared to theory because theory is logical and well reasoned explanation about a certain happening.
A theory grows into a law when several group of people work on the same question and find same answer in such a way that it is universally approved. Theories can be revised after repeating experiment or condition however scientific law can never be proved wrong and it remains same.
For example: Darwin's theory called Neo- Darwinism in which he said that living organisms can be produced from non-living organism was disapproved by scientists after careful experimentation. It explained the reasoning that why living organisms can be produced from non-living organisms however if it had been proved by all scientists it would become a law which just explains that how living organisms are produced from non living in a general one or two lines statement. For example: Newton's law of motion.
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Which describes a promoter?
Answer:
the first part of an operon that regulates where, when, and to what level a gene is expressed
Explanation:
can proteins be used as a fuel to make energy for the body
Answer:
Explanation:
Proteins are generally not used for energy unless your body has no other option
Match the stages with the right definition
what's the answer?
This animal represents what kind of body symmetry?
asymmetry
radial symmetry
bilateral symmetry
A liquid will contain convection currents until which condition is true?
[tex]\text{Hey there!}[/tex]
[tex]\text{A liquid will contain convection currents until which condition is true?}[/tex]
[tex]\boxed{\text{Answer: The liquid has about the same amount of temperature throughout}}\checkmark[/tex]
[tex]\text{Reason}\downarrow[/tex]
[tex]\text{The current convection will occur from the \bf{heat system.}}\\\text{Anything else of the temperature will NOT HAVE heat in that movement.}\\\text{Because, heat comes from an energy and majority energies will have a movement.}[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
Convection currents in liquids continue until density decreases as temperature increases due to buoyant forces.
Convection currents in a liquid will continue until the condition where density decreases as temperature increases due to buoyant forces is met.
The ______ system includes the parts of the plant below ground.
Answer:
the root system
Explanation:
The shoot system is above ground and includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any). The root system includes those parts of the plant below ground, such as the roots, tubers, and rhizomes.
Which of the following parts of a prokaryote is the part of the cell membrane that is folded in and thought to be used for helping DNA replicate?
Answer:
Mesosomes
Explanation:
Mesosomes are part of cell membrane that is folded. It is that part of prokaryotes which not only aids in increasing cell surface area for respiration but also aids in DNA replication and synthesis of cell wall. They play same role as mitochondria in eukaryotes so, are also called mitochondria of prokaryotic cells.
sedimentary rock___.
A. forms below the crust
B. is made from cooling magma
C. usually forms horizontal layers
D. does not contain fossils
Answer:
C. usually forms horizontal layers
Explanation:
Sedimentary rocks usually form horizontal layers.