Answer:
true
Explanation:
Why is there controversy to the opinion that human contribution of carbon dioxide to the atmosphere is causing global warming?
choose the answers that best fit
Because the Earth goes through periodic cycles of cooling and warming.
Because the levels of carbon dioxide being released by humans has not increased since the past.
Because climate is so complex that the two cannot be definitively related.
Because the statistics are not clear about how much additional carbon dioxide input would be required to raise global temperatures.
Answer: Because the statistics are not clear about how much additional carbon dioxide input would be required to raise global temperatures.
Explanation:
Global warming can be define as the increase in temperature worldwide due to increase in abundance of greenhouse gases in the atmosphere. These gases are responsible for trapping the heat energy from sunlight.
Carbon dioxide is also a greenhouse gas which is chiefly responsible for global warming. There is a controversy that human beings are responsible for global warming as release of carbon dioxide into the atmosphere is due to burning of fossil fuels and deforestation on the large scale. But volcanic eruption and other natural factors are also responsible for such increase in abundance. Therefore, a proper statistical account for release of carbon dioxide in the environment has not been framed.
During rem sleep, your skeletal muscles are relaxed because messages from the motor cortex are blocked by the
Answer:
Brainstem
Explanation:
During REM sleep , the electrical activity of our muscles get reduced or paralysed which is primarly due to blocking of messages by the brainstem.
Trigeminal motor neurons found in the brain cell helps in moving the muscles but during REM sleep, the two neurotransmitter receptors namely GABAA and glycine are paralysed by the brain stem and hence no muscle activity could be observed during the REM sleep
The nurse is ready to begin the physical examination of an 8-month-old infant. the child is sitting contently on the mother's lap, chewing on a toy. what should the nurse do first?
Which type of cells in a plant normally have the most chloroplasts?
Identify the factors that can affect the carrying capacity of an ecosystem.
Final answer:
Carrying capacity in ecosystems is influenced by various factors including light, water, nutrients, disease, predators, and competition. Density-dependent and density-independent factors also play a role in regulating population growth.
Explanation:
Carrying capacity is the maximum population size that an ecosystem can support without causing habitat destruction. Factors that can affect the carrying capacity of an ecosystem include light, water, nutrients, disease, predators, and interspecific competition. Additionally, density-dependent factors like competition and disease and density-independent factors such as natural disasters can limit population growth.
Explain why the 3-dimensional structure or shape of an enzyme is the key to its activity. include active site and induced fit in your discussion. (1)
Which textbook feature identifies and divides the text into sections? exercises overviews graphics headings?
The right option is; headings
Headings is the textbook feature that identifies and divides the text into sections.
Headings are phrases or words that are usually written at the top of passages or pages in a book to explain what the succeeding section is all about. Headings identify and divide a book into sections and it can be considered as the topic of that particular section. Headings are usually bigger than subheadings and it helps readers to identify the most important points of each section in a book.
Explain how hunter-gatherers affected the environment in which they lived.
Which of these statements is correct about light?
a. It travels slower than sound.
b. It travels slower than electric charges.
c. It travels the fastest through water.
d. It travels the fastest through a vacuum.
Answer:
D is correct
Explanation:
I just took the tset and i got a 95% on it
Answer:
d. It travels the fastest through a vacuum.
Explanation:
What is the name of the bone that makes up most of the posterior surface of the orbit?
____ are slender threads inside of a cell’s nucleus that carry genes. chromosomes ribosomes golgisomes dna strands
Smooth muscles that produce goose pimples when they contract are the: 1. papillary muscles. 2. cuticle muscles. 3. medullary muscles. 4. arrector pili muscles
Describe how oxygen and carbon dioxide diffuse both between the 1) alveoli and the blood, and 2) blood and the body tissues. Include in your description the diffusion gradients present for both gases at both locations.
Answer:
what that guy said is right!
Explanation:
I got the points on my test!
"children's vaccines are safe" is a proposition of
Need help asap The relationship between bacteria and legumes that results in nitrogen is best described as _______.
a.
parasitic
b.
mutualistic
c.
commensalistic
d.
none of the above
The relationship between bacteria and legumes that results in nitrogen is best described as mutualistic.
What do you mean by mutualistic relationship?Mutualism describes the ecological interaction between two or more species where each species has a net benefit. Mutualism is a common type of ecological interaction.
A mutualistic relationship is when two organisms of different species "work together," each benefiting from the relationship.
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions. While mutualism is highly complex, it can be roughly broken down into two types of relationship.
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Hunter has an fmri and his doctor says that he notices that the gray matter has peaked in the lobe of his brain partially involved in dealing with higher-order thinking. the doctor is referring to what part of the brain
What elements help bones heal
Zooplankton eat algae. this is an example of a feeding stage or _____.
Final answer:
Zooplankton consuming algae exemplifies the primary consumer role in a food web. As primary consumers, zooplankton feed on primary producers like phytoplankton, situating them at trophic level 2 in aquatic ecosystems.
Explanation:
Zooplankton eating algae is an example of a feeding stage called the primary consumer level in a food web. Phytoplankton are primary producers that utilize photosynthesis to create energy and serve as the base of the aquatic food web. Zooplankton, which are considered herbivores in this context, feed on these phytoplankton. This interaction illustrates one of the many energy transfer steps within a food chain.
Within a food web, different organisms occupy various trophic levels based on their source of food. Zooplankton would be at trophic level 2 as primary consumers when they exclusively eat phytoplankton.
Structural protein found in skin and connective tissue:
Skin and connective tissue mainly contain collagen, a structural protein, providing tensile strength. Other proteins like elastin and reticular fibers provide flexibility and support respectively. These proteins are crucial components for all tissues and body functioning.
Explanation:The structural protein found in skin and connective tissue is predominantly collagen. Collagen fibers are flexible, fibrous proteins that give connective tissue tensile strength. These fibers can be organized in various ways, such as irregularly in areas exposed to stress from all directions like the dermis of the skin.
In connective tissue, other types of protein fibers are also present such as elastic and reticular fibers. Elastic fibers, composed of elastin, can stretch and return to their original shape providing flexibility.
Reticular fibers, thin strands of collagen, form a network to support tissue and other attached organs. These proteins are important components of the body's tissues and functional chemicals.
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Arachnoid granulations are knoblike projections that protrude superiorly through the ________ mater to absorb cerebrospinal fluid into venous blood.
A person who is homozygous for the x chromosome is
Final answer:
A person homozygous for the X chromosome has two X chromosomes (XX) and is biologically female, in contrast to males who are heterozygous (XY). This is a basic principle of mammalian sex determination.
Explanation:
A person who is homozygous for the X chromosome possesses two copies of the X chromosome (XX) and is biologically female. This genetic configuration differs from males who are heterozygous with one X and one Y chromosome (XY), leading to male characteristics. In the context of sex determination, being homozygous for the X chromosome means that the individual will develop female characteristics, as the absence of a Y chromosome does not trigger the development of male traits. This is a fundamental aspect of mammalian sex determination, which follows the XY system, also found in some insects and plants.
Results of scientific research suggest that _______ play a major role in the aging process by serving as biological clocks that control the number of times cell division can occur.
The na/k atpase is an example of an atp dependent ligand-gated channel that allows for the movement of sodium against its concentration gradient. when this transporter is active
Why did redi carry out another experiment with three jars?
Francesco Redi performed an experiment with three jars to disprove the theory of spontaneous generation by showing that maggots did not randomly appear but were born of flies' eggs.
Explanation:Francesco Redi was a 17th century Italian physician who conducted an experiment with three jars to disprove the then-prevalent theory of spontaneous generation, which claimed that living organisms could arise from non-living matter. Each jar had meat in it. The first jar was left open, the second was covered with gauze, and the third was sealed. Flies were able to lay eggs on the meat in the open jar, resulting to maggots. For the second jar, flies were attracted to the meat but were unable to reach it due to the gauze, hence no maggots were found. And for the sealed jar, there were no flies nor maggots observed. This experiment established that the maggots did not spontaneously appear but were born of the flies' eggs.
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A forensic scientist finds a single skin cell from saliva on a cigarette butt left in a room where a murder has just occurred. What process might he or she utilized to accumulate enough DNA to determine who left the cigarette at the scene of the crime?
A. Genetic engineering
B. Gene therapy
C. Gel electrophoresis
D. Polymerase chain reaction
The best answer for this question would be:
D. Polymerase chain reaction
It is used in molecular biology in order to create small fragments of the DNA. Those copies of the DNA mimic the happenings in the cell. This chain reaction is an efficient technique to further research on crimes.
The weather of continental areas are less affected by: a. Wind b. Rain c. Oceans d. Solar rays
Answer:
option D
Explanation:
correct answer is option D
Tornadoes, Huge Storm can affect the weather of the continental areas.
Heavy rain can lead to cause flood in many plain areas this leads to affect the continental areas.
Tsunami in oceans can also affect the weather of the continental areas.
so, the only option solar rays affect least to any continental region.
Zygote, gamete, and fertilization are key terms associated with sexual reproduction. identify the definitions and examples of these three key terms
Cells such as neurons, which rarely if ever divide, can be explained as
A client with impaired peripheral pulses and signs of chronic hypoxia in a lower extremity has a femoral angiogram. what is the priority nursing action after the angiogram?
the main method of heat transfer occurring within the water is called