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Muscle cells are specialized for contraction or movement. Skin cells are specialized for protection. For example, skin cells protect the body from UV light. Predict which cells would contain more mitochondria: muscle cells or skin cells explain your answer.
When two average-height parents give birth to a child exhibiting achondroplasia, it is most likely due to a new mutation. this is because __________?
Compare two ways that the binding of a signal molecule to a receptor protein causes a change in the activity of the receiving cell
Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. The Douglas-fir is a conifer tree that grows in the taiga biome. It has an average height of about 70 feet, and its wood is an important source of lumber. Photo by Anne Burgess How has the Douglas-fir adapted to enable its survival in the taiga biome? a. low growing b. perennial c. waxy needles d. survive on limited nutrients
the correct answer is C
Answer:
C. Waxy needles
Explanation:
Taiga is one of the coldest biomes of the world. It is dominated by coniferous woody trees. It recieves very little or no rainfall during winter months. Trees of Douglas fir exhibit waxy needles to prevent the loss of water through transpiration in the scarcity of water.
Which organisms are both secondary and tertiary consumers in this food web?
-Chemosynthetic bacteria and amphipods
-Zooplankton and mussels
-Ratfish and octopuses
-Galatheid crabs and zoarcid fish
Which of the following is most likely to cause the greatest disruption to an ecosystem?
Emptying an aquarium containing non-native species into a local waterway
Cutting down a small cedar tree to make holiday decorations
Cleaning the windshield of a car with an alcohol-based glass cleaner
Mowing the lawn in a city park
During ecological succession, how does the growth of young hardwoods affect the organisms living in an ecosystem?
Grasses and low shrubs are unable to obtain the amount of light they need to survive, so there are small numbers of them.
The trees provide shelter and food for a variety of mammals, insects, and birds.
In autumn, falling leaves provide a source of energy for decomposers such as fungi.
All of the above
The organisms that are both secondary and tertiary consumers in this food web, Ratfish, and octopuses. This is because if Galatheid crabs and Zoarcid fish are removed, they become secondary consumers, but now they are tertiary consumers.
What do you mean by Tertiary consumers?Tertiary consumers may be defined as a carnivore at the topmost rank in a food chain that forages on other carnivores.
The statement that most likely causes the greatest disruption to an ecosystem is, cutting down a small cedar tree to make holiday decorations.
During ecological succession, the growth of young hardwoods affects the organisms living in an ecosystem by all of the statements given above.
Therefore, each of the above questions may be described briefly.
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Chemical reaction equations, such as the one for photosynthesis, show the reactants and products of a reaction. How does this simplification misrepresent what takes place during the process of photosynthesis?
It does not show where in a cell photosynthesis occurs.
It does not show how long photosynthesis takes to happen.
It does not show that photosynthesis consists of many separate reactions.
It does not show the number of molecules required to produce glucose.
The right answer is It does not show that photosynthesis consists of many separate reactions.
It takes six molecules of carbon dioxide and six molecules of water to synthesize a molecule of glucose, releasing six molecules of oxygen, thanks to the light energy.
6 CO2 + 6 H2O + light energy ==> C6H12O6 (glucose) + 6 O2
But this balance is in fact broken down into two successive stages:
Light phase or photochemical phase:
12 H2O + light ==> 6 O2 + chemical energy (24 H).
The Calvin cycle (dark phase):
6 CO2 + chemical energy (24 H) ==> C6H12O6 + 6 H2O.
What do holes in volcanic rock illustrate about the condition in which it was formed? Wright a short summery paragraph.
If red flowering snapdragons are crossed with white flowering snapdragons, what would be the expected phenotype of the offspring
Answer:
pink
Explanation:
Minnesota department of natural resaws says has introduced regulations that require the use of approved firewood in State parks state florists and wildlife management area is there a specific approval firewood for each area which can’t be used in other protected areas what is the most likely reason for these restrictions
Answer:
B: To avoid the introduction or spread of insects or disease that damage native trees.
Bipolar disorder has a _______________ rate of heritability suggesting a biological cause.
The answer is high. It is because bipolar disorder does cause high rate of heritability because of factors that could affect the individual. These factors or biological cause can affect greatly in which is why it has been concluded that it could cause high heritability. The factors have been a great contribution in making an individual to be susceptible or acquire this type of disorder.
If the gfr is too low, needed substances may pass so quickly through the renal tubules that they are not absorbed and instead are lost in urine.
a. True
b. False
Excess protein intake can result in ________.
A child diagnosed with tinea is being treated with griseofulvin. what should the nurse tell the parents to do?
The nurse should tell to the patient’s parents that the tinea is not a serious infection in which it wouldn’t cause any serious complications although they should also be cautious when handling the things of their child as this could be transmitted with the use of having to be in contact with the person that is infected.
A transient condition of low hemoglobin in the blood associated with early stages of strenuous athletic training is
The transient condition that is being described above is sports anemia. This occurs when an individual is into aerobic exercise that will likely cause the individual to have his or her red blood cells to be diluted in which happens because of the plasma volume of the individual has been expanded.
Which organ in the lymphatic system does the breakdown of damaged red blood cells take place?
Answer: Spleen
Explanation:
The spleen is the organ in the lymphatic system which does the breakdwon of damaged red blood cells. It works as a blood filter and it can be found in the abdominal area.
It has two types of tissues: the red pulp tissue and the white pulp tissue. The red pulp tissue is the one who checks the levels of red blood cells storaged in our body and gets rid of the bad, preventing any risk of getting an infection.
The cell theory was constructed by _____. Robert Hook Schleiden and Schwann Carolus Linnaeus
Answer:
Schleiden and Schwann
Explanation:
The cell theory is the now universally believed theory that all living being are formed by cells, and the first cell theory was proposed by Theodor Shchwann and Mathias Jakob Schleiden, back in 1830, the first cell was ever observed in a microscope by Robert Hook in the 16th century but it wouldn´t be untill 2 centuries later that the cell theory started to take form.
A cell viewed under a high powered microscope appears to be in the fourth phase of the cell cycle. what does this indicate about the cell?
ANSWER:
Phases of Mitosis.
STEP-BY-STEP EXPLANATION:
The M stage includes Mitosis which is the procedure of cell division. It is made out of:
Prophase :
-Nucleus breaks down
-Atomic layer breakdown
-Shaft strands show up
Prometaphase :
-Shaft strands connect to chromosomes
-Chromosomes consolidate
Metaphase:
-Chromosomes adjust at the metaphase plate
-Anaphase
-Centromeres partition
-Sister chromatids move to inverse shafts
Telophase :
-Atomic layer changes
-Chromosomes decondense
-Shaft filaments vanish
The laboratory report of a client reveals that the platelet count is 60,000/µl (60 x 10 9/l). which integumentary changes can be anticipated in this client? cyanosis petechiae varicosity ecchymosis hematoma
"describe how prolonged immobilization results in muscle injury"
Prolonged immobilization causes muscle atrophy, which leads to muscle weakening and reduced function due to the muscles not receiving regular stimulation. Improper immobilization of fractures can cause misalignment during healing, further injuring muscles. Exercise and rest are crucial for preventing and recovering from muscle injuries, while improper technique can lead to overuse injuries.
Prolonged immobilization can have detrimental effects on muscle tissue, leading to muscle atrophy and injury. When muscles are not subjected to regular activity or strain, such as in cases where individuals experience extended bed rest, spaceflight, or being immobilized due to injury, they begin to weaken and decrease in size.
The muscle fibers become smaller, resulting in overall muscle weakening, which, in turn, diminishes strength and function. This process occurs because the muscles are deprived of the regular stimulation needed for maintaining muscle mass and protein content.
Additionally, immobilization can lead to the damage of syndesmotic joints and the associated muscles. If a fracture is not properly immobilized, the muscles that are still trying to contract can cause misalignment during the healing process, exacerbating the injury and leading to prolonged recovery times.
Furthermore, when muscles have undergone significant damage, their capacity to produce power is compromised due to the loss in muscle fiber quantity and quality. Regular exercise and stretching are essential to prevent muscle injury and to encourage recovery and strength-building following an injury.
However, it is critical to balance exercise with adequate rest, as overuse injuries can occur from activities such as resistance training without proper rest and recovery time. These injuries may include damage to muscle fibers, tendons, or bones, and they highlight the need for careful alignment and technique during exercises to prevent further harm to the muscles.
Various species of streptomyces are important sources of antibiotics. various species of streptomyces are important sources of antibiotics.
a. True
b. False
An example in which a species is no longer found anywhere on earth is
List the four levels of organization in the human body from smallest to largest give an example to each level
When assessing abdominal pain in a college-age woman, one must include'?
Answer:
When evaluating abdominal pain in a university woman, one can infer that it is an endometriosis
Explanation:
Endometriosis is defined as a very common gynecological disorder in women of childbearing, benign age, and depends on estrogen. Although its highest frequency is in women between 25 and 45 years old, it can also occur at the time of the first menstruation. Its main symptoms are pelvic pain, coupled with menstruation, infertility, etc. When there is a compromise in the gastrointestinal system, abdominal pain, pain in the rectum, nausea, vomiting, etc. can be felt.
Explain how predators and prey regulate each others population growth. Give an example.
Rolling over, crawling, and walking are all stages of which naturalist process?
Ribosomes assemble _____ to make proteins.
A) DNA
B)amino acids
C) nucleic acids
D) RNA
The right option is; B)amino acids
Ribosomes assemble amino acids to make proteins.
Ribosomes are cell organelles found within all living cells. Within a cell, ribosome may be bound to the endoplasmic reticulum, or it may be suspended in the cytosol. Ribosomes functions as the site of biological protein synthesis. They are responsible for assembling amino acids in the order specified by messenger RNA (mRNA) molecules. Ribosomes contain two parts; (i) the small ribosomal subunits (that read the RNA), and (ii) the large subunits, (that link amino acids to create a polypeptide chain).
Ribosomes assemble RNA to make proteins. therefore option D is correct.
Ribosomes are responsible for the assembly of amino acids into proteins. This process, called protein synthesis or translation, occurs within the ribosomes in the cytoplasm of the cell.
During protein synthesis, the genetic information stored in DNA is first transcribed into RNA molecules, specifically messenger RNA (mRNA). The mRNA carries the instructions for building a specific protein from the DNA in the nucleus to the ribosomes in the cytoplasm.
Once the mRNA reaches the ribosomes, it serves as a template for protein synthesis. Transfer RNA (tRNA) molecules, which are specialized RNA molecules, bring the corresponding amino acids to the ribosome.
The sequence of nucleotides in the mRNA determines the sequence of amino acids to be joined together.
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How does the precision of measurements affect the precision of scientific calculations?
How do industrial melanism, insecticide resistance, and antibiotic resistance all support the idea of evolution and natural selection?
_____ is considered a pioneer in the area of suicide study.
The tharsis bulge on mars is most likely the result of