Answer:
cell
Explanation
because is basic unit of life
2. Describe three conditioned reflexes that you exhibit while at school.
Answer:
digestion, circulation, and respiration.
Explanation:
The best and closest definition of "biodiversity" would be?
a) a member within a population
b) a single organism in a community
c) all of the different species of living things in a given area
d) the non-living components of an ecosystem.
what is the significance of diffusion and osmosis in living organism ?give one example in support of your answer
Answer:
Plants use this to absorb water from the soil to the roots. Osmosis is important to plants because it allows for water uptake, photosynthesis and general stability.
Osmosis ensures that all cells and structures within a plant have correct water pressure and volume.
In animals, osmosis helps to absorb water from the intestines to the blood.
Explanation:
just Mark me brailinist
complete the sentence:
primary consumers receive about _________ of the energy available in biomass from producers.
A. 100 percent
B. 50 percent
C. 35 percent
D. 10 percent
Answer:
D. 10 percent
Explanation:
What structure seals the space between two cells and makes it impermeable?
The structure that seals the space between two cells and makes it impermeable is; Occluding or Tight Junction
What is the Cell Junction?
The correct answer to the question is called Occluding junctions or tight junctions. This is because Occluding junctions in cell structures are junctions that create a watertight seal that is like an impermeable or semipermeable barrier in between adjacent cells to prevent the escape of water or other liquids.
Thus, the structure is called an Occluding junction or tight junction.
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Consider the diagram of an internal feedback mechanism that the body uses to help maintain homeostasis.
The internal feedback mechanism is shown. Stimuli goes to the receptor to the coordinator to the effector to the response and then to feedback.
What is the role of the central nervous system in this model?
a) coordinator
b) effector
c) response
d) stimuli
The role of the central nervous system in this model is as coordinator (Option a).
What is the central nervous system?The central nervous system is a fundamental body system that acts by sending and receiving signals from the environment.
The central nervous system can act as a coordinator by modulating signals and thus maintaining the internal equilibrium (homeostasis).
In conclusion, the role of the central nervous system in this model is as coordinator (Option a).
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In the diagram, the arrow shows the movement of
electric charges through a wire connected to a battery.
Mark this and return
What causes the electric charges to flow from one end
of the battery to the other?
O a balance in electric potential
O a balance in resistance
O a difference in electric potential
O a difference in resistance
Save and Exit
Next
Submit
O a difference in electric potential
An example of a diatomic molecule is:
O2
NaCl
Na
H2O
Answer:
O2
Explanation:
diatomic molecules are chemically compounded
The __________ nervous system is the subdivision of the peripheral nervous system that regulates body activities that are generally not under conscious control
The autonomic nervous system is responsible for regulating involuntary body activities.
The nervous system coordinates the bodily functions of muscles to produce actions.Involuntary activities such as circulation, heartbeat, digestion, breathing, and peristalsis for example are generally not under our conscious control.
These are otherwise known as involuntary actions controlled by the autonomic nervous system which in turn is a subdivision of the peripheral nervous system (this system branches off the spinal cord to all other parts of the body.
Other parts of the nervous system would be the central nervous system divided into:
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Muscles that guard entrances and exits of internal passageways are ________ muscles.
The answer to the given question will be that the muscles that guard the entrances and exits of the internal passage are known as sphincter (circular muscles).
Due to their structure and controllability, skeletal circular muscles differ from their smooth muscle counterparts.The muscularis mucosa, which is mostly found in the stomach, is composed of smooth muscle. The longitudinal layer shortens the tract while the circular muscle layer in the muscularis externa prevents food from moving backward.The human body contains at least 50 or 60 different types of sphincters. Some are quite small, like the many precapillary sphincters that line the circulatory system's blood vessels.Lower esophageal sphincter (LES), pyloric sphincter (PS), ileocecal sphincter (ICS), and internal sphincter are the four different smooth muscle sphincters found in the GI system (IAS).Hence, the answer is that the muscles that guard the entrances and exits of the internal passage are known as sphincter (circular muscles).
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ANALYZE How does the diagram in Figure 4 show that the engineering design process is
an iterative, or repeated, process?
Answer: engineering process
How does Earth's global temperature affect sea level?
A. Sea level falls as Earth becomes warmer and glaciers melt.
B. Sea level rises as Earth becomes warmer and glaciers melt.
C. Sea level falls as Earth becomes cooler and glaciers shrink.
D. Sea level rises as Earth becomes cooler and glaciers grow.
Answer:
B) Sea level rises as Earth becomes warmer and glaciers melt.
Think about challenges related to marine science which are currently facing society. In coastal and inland communities alike, there might be challenges such as pollution, invasive species, or waste management. Communities also face public health issues, such as outbreaks of diseases, and ethical concerns surrounding science and technology. Communities turn to fellow citizens, scientists, engineers, and other professionals to solve these problems. Many times these problems are not clearly defined or easy to solve. They involve many variables and points of view. Your task is to analyze a global challenge related to marine science, and to specify qualitative and quantitative criteria and constraints for solutions that account for societal needs and wants.
Global challenges related to marine science are as follows:
1. Ocean acidification is a major issue that affects all of the world's ocean industries and has severe negative effects on the environment, society, and the economy. Coordinated government action is required to effectively address this issue.
What is impact of ocean acidification?Ocean acidification will affect the biological, biogeochemical, and ecological aspects of the oceans, and while the effects on the environment, the socio-ecological system, and human dimensions are all still not fully understood, they have the potential to have very dramatic effects. Numerous marine ecosystem services and goods may be impacted directly or indirectly. Industries that rely on these services from the Ocean are impacted.
2. Overfishing:
Overfishing poses a severe threat to the fish in our water, whether it's for the food industry or the aquarium sector. The Food and Agriculture Organization estimates that more than half of the species of marine fish have been totally or overexploited, despite the fact that many of them simply need to remain in the sea because they are not necessary for food security or because they cannot survive in captivity. We are killing entire ecosystems and the food chains that are necessary to keep them healthy by overfishing. Overfishing not only causes the extinction of entire species, but it also directly affects other species in the food chain.
3. Plastic
Between 1.15 and 2.41 million tons of plastic enter the ocean every single year. The Great Pacific Garbage Patch, which is a collection of rubbish in the Pacific Ocean is now three times the size of France. Animals can get tangled in the huge amount of plastic which litter the ocean, and the plastic smothers and destroys coral and sponges. Plastic bags are also often mistaken for food by sea turtles, and they either become trapped or eat the bag which clogs their digestive system. Plastic continuously breaks down resulting in little pieces of “micro-plastic” that are consumed by a variety of marine life, including several species that humans like to catch and eat.
solutions that account for societal needs and wants:
1. Cutting back on carbon emissions.
2. Reducing plastic usage.
3. Making sure the fish you consume is supplied sustainably and ethically.
4. Participating in beach cleanups.
5. Only purchase aquarium fish that were raised in captivity.
6. Supporting elected officials that favor a wholesome atmosphere
7. Contributing to environmental organizations that protect our oceans.
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How long are Capillary sites generally warmed?
Capillary sites generally should be warmed within 3 minutes.
What is Capillary site?
Parts of the body such as the finger or heels are regarded as capillary sites in which blood is usually collected.
Heating this site within three minutes will ensure that blood flow within that area is enhanced or increased.
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an excretory organ in our bod?
Explanation:
The excretory organ in our body are :
Kidney liver intestine lungs...etc...[tex]...[/tex]
1.Explain Cytotaxonomy and Chemotaxonomy and Numerical Taxonomy.
2.Difference Between Chemotaxonomy And cytotaxonomy?
Answer:
Cytotaxonomy refers to the classification of biological materials based upon similarities and differences of cellular structure and number of chromosomes present in the cell afterwards while .:::: chemotaxonomy refers to the classification of biological materials based upon similarities and differences of the ...Chemotaxonomy is based on the similarities and differences in biochemistry such as a sequence of amino acids in proteins, whereas, cytotaxonomy is the classification based on cellular characteristics such as chromosomes number and behaviour.How do the 2 sides of the brain communicate?
The two (2) sides of the brain are able to communicate through the corpus callosum.
What is a brain?A brain can be defined as an organ of soft-nerve tissue that is found within the skull of vertebrates, and it's mainly responsible for the coordination of nervous activities, sensation and intellect in living organisms.
Based on medical information and records, the two (2) sides of the brain (symmetrical left and right hemispheres) are able to communicate through the corpus callosum.
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ASAP ASAPWhich of the following is an example of Genetic Engineering?
A. Mating the most productive plants together so their offspring will have a high yield.
B. Altering the DNA of yeast to create vaccines.
C. Raising pure breeds of dogs.
D. Altering the chemical structure of alloys to create better characteristics.
Answer:
D
Explanation:
The literal definition of genetic engineering is the deliberate modification of the characteristics of an organism by manipulating its genetic material.
D. Altering the chemical structure of alloys to create better characteristics.
is the best example of Genetic Engineering
what is genetic engineering?Genetic engineering (also called genetic modification) is a procedure that makes use of laboratory-primarily based technologies to alter the DNA makeup of an organism. this could involve changing a single base pair (A-T or C-G), deleting an area of DNA, or including a brand new segment of DNA.
Genetic engineers alter, splice, eliminate, and rearrange genes a good way to modify an organism or groups of organisms.
uses of genetic engineering
In Medicine: Genetic engineering can be applied to:
Manufacturing of drugs.Creation of model animals that mimic human conditions and,Gene therapy.Human growth hormones.Follicle-stimulating hormones.Human albumin.Monoclonal antibodies.Antihemophilic factors.Learn more about genetic engineering here
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What is the relationship between the economy and the health of a marine ecosystem?
poor economic conditions increase demands for materials and harm the health of marine ecosystems.
poor economic conditions lead more people to find jobs, harming the health of marine ecosystems.
strong economies reduce the need to overfish coastal waters, improving the health of marine ecosystems.
strong economies mean more resources are being used and this can harm the health of marine ecosystems.
In case of poor economic conditions increase demands for materials and harm the health of marine ecosystems. The correct option is A.
What is marine ecosystem?Marine ecosystems are aquatic environments with high dissolved salt levels.
These include the open ocean, the deep sea, and coastal marine ecosystems, each with its own set of physical and biological characteristics.
If the economy suffers, the resources needed to improve the health of marine ecosystems will be unavailable.
Thus, the correct option is A.
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Which factor helps determine the fertility rate of a group of people?
A. Wealth
B. Death rate
C. Farmland
D. Consumption rate
a child is newly diagnosed with neonatal bronchopulmonary dysplasia (chronic lung disease). which intervention should the nurse perform first to help the parents?
The intervention that the nurse needs to perform to help the parents is to evaluate parent's stress/anxiety levels.
What are stress and anxiety levels?Stress and anxiety levels represent serious health problems associated with different physiological events.
Stress and anxiety levels may be very high during a traumatic situation and cause diseases.
In conclusion, the intervention that the nurse needs to perform to help the parents is to evaluate parent's stress/anxiety levels.
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You pick up a vertebra to identify it and note that the transverse processes contain foramina. This unique feature identifies the vertebra as coming from the ________ region of the vertebral column.
The foramina is a unique feature that identifies a vertebra as coming from the cervical region of the vertebral column.
What is a vertebra?The vertebra refers to a collection of bones which gives structure and shape to vertebrate animals.
The vertebra is also known as the backbone.
The vertebra in divided into various types based on the region they are found in the body.
The transverse process of a vertebra containing foramina is from the cervical region as they provide passage to the vertebral artery.
Therefore, the foramina is a unique feature that identifies a vertebra as coming from the cervical region of the vertebral column.
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which human evolutionary theory is supported by analysis of maternal inheritance through analyzing mitochondrial dna?
The human evolutionary theory is supported by analysis of maternal inheritance through analyzing mitochondrial dna is; Recent African Origin Theory.
What is human evolution theory?Human evolution theory is simply defined as the lengthy process of change by which people originated from apelike ancestors.
Now, the correct answer to the question will be "Recent African Origin Theory". This is because the "recent African origin" model proposes that all modern non-African populations are substantially descended from populations of Homo sapiens that left Africa after that time.
The description above corresponds with the idea that analysis of maternal inheritance is done through analyzing mitochondrial dna.
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b. A family of foxes arrived on the island after the rabbits were released. No
other factors on the island changed. Based on the graph, during what year did
the foxes most likely arrive? How did the arrival of the fox family impact the
carrying capacity of the rabbit population on this island? (3 points)
The carrying capacity is affected by dense dependent and dense independent factors. 1) During the fourth year. 2) Negative impact. K decreased from 200 to 100 rabbits.
What is carrying capacity?Carrying capacity -K- is the capability of the environment to support a growing population.
It is a constant that coincides with the population size at which natality and mortality rates are equal. This is the equilibrium point.
Commonly, environments have limited resources, and as the population grows, resources are consumed faster, leading to an increase in the competition rate.
Per capita growth rate decreases as population size, N, increases.
If the N < K, the population can still grow.
• When N approximates to K, the population's growth speed decreases.
• When N = K, the population reaches equilibrium,
• When N > K, the population must decrease in size because there are not enough resources to maintain that size.
The carrying capacity might be affected by limiting factors, which might be
density dependent (for example, competition, predation, etcetera) density independent. This last case refers to dense-independent factors, among which we can mention human impact or natural disasters (fires, volcanic eruption, flooding).In the exposed example, when referring to rabbit's carrying capacity, we can assume it is limmited by intraspecific competition and by predation.
Population size between the 1st and 2nd yearsAt first we can see that during the first two years, the number of rabbits increased until it was a little bit over 200 individuals.
Population size between the years 2, 3 and 4During the second, third, and fourth year, the number of rabbits was kept around 200 individuals, which leads us to assume that K = 200 rabbits.
Population size the fourth yearHowever, in the fourth year, there was a sharp decrease in the number of rabbits. Probably this event was due to the arrival of foxes (predators) on the island.
Population size after the fourth yearIn the presence of foxes, the number of rabbits varied around 100 (K = 100).
According to this information, we can assume that only intraspecific competition (related to resources) had a significant role during the first years.
But with the foxes' arrival, the rabbits' carrying capacity decreased from 200 to 100, meaning that, during the following years, predation strongly influenced the rabbits' carrying capacity.
1) During what year did the foxes most likely arrive?
During the fourth year
2) How did the arrival of the fox family impact the carrying capacity of the rabbit population on this island?
Foxes had a negative impact on the foxes' carrying capacity. It decreased from k = 200 to k = 100 since the foxes arrival to the island.
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Which scientists atomic model is more recent
The more recent atomic model is known as the “electron cloud” model.
What is the “electron cloud” model?The “electron cloud” model is a theory used in physics to explain the position and relative arrangement of atomic elements.
According to this model (electron cloud), negatively charged electrons for clods around atomic nucleus.
In conclusion, The more recent atomic model is known as the “electron cloud” model.
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Can someone help me please
Explanation:
his blood - stained sword lost its sharpness
Answer:
D
Explanation:
ghhjjjhgggghhhhhhhhhhhhgghhhhh
What are homotopic brain areas? Group of answer choices regions of the cortex that are organized according to spatial maps of the environment areas in corresponding locations in the two cerebral hemispheres areas in the brain that are organized according to spatial and auditory frequency regions of the cortex found within the same cerebral hemisphere
The homotopic brain areas are the reas in the brain that are organized according to spatial and auditory frequency regions of the cortex found within the same cerebral hemisphere.
What are homotopic brain areas?It should be noted that the homotopic brain areas are the connectivity between the mirror areas of the brain hemisphere.
In this case, the homotopic brain areas are the reas in the brain that are organized according to spatial and auditory frequency regions of the cortex found within the same cerebral hemisphere.
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A blood alcohol concentration of. 08 indicates that _____ percent of your blood is alcohol.
A blood alcohol concentration of. 08 indicates that 0.08% of your blood is alcohol.
Any driver who's stopped by a law enforcement officer and found to have a breath or blood alcohol level of .08 or higher will, at the time of the arrest?Any driver who's stopped by a law enforcement officer and found to have a breath or blood alcohol level of .08 or higher will, at the time of the arrest will have their driving privilege suspended. Depending on what occurs, the suspension will change from shorter to longer, and vice versa.
Thus, 0.08% of your blood is alcohol.
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How does sucrose move from source to sieve?
The sucrose move in source to sieve by active transport.
What is active transport?Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.
In this case, the sucrose moves from companion cells into source to sieve elements by active transport. This reduces the water potential of the source to sieve element by osmosis, which increases the hydrostatic pressure.
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Which of the following is not a characteristic of living things
Answer:
C. Must be able to reproduce
Explanation:
A. All living things must grow and develop
B. Single-celled organisms exist and are considered living things.
D. All living things must have DNA in their cells.
