Answer:
activators and inhibitors
Explanation:
Killing pathogens and then using them to provide the body with active immunity is called ______. This is often done in young children.
When the immune system treats otherwise harmless substances, such as pollen, as if they were invaders, a/n ______ can occur.
HIV is a virus that attacks ______ in the body, weakening the immune system.
Polio used to be fairly common and devastating. Thanks to widespread vaccination against polio, the disease is now considered _______, no longer infecting nearly as many people as it once did.
Arthritis is an example of a/n _______, where part of a person’s body is identified as foreign and attacked by the person’s immune system.
Respond to the following based on your reading.
Colonization is largely blamed for bringing smallpox to the Americas. Why was this disease so devastating to Native Americans? Why can we now travel to different parts of the world and avoid contracting analogous diseases?
Answer:
Killing pathogens and then using them to provide the body with active immunity is called IMMUNIZATION . This is often done in young children.
When the immune system treats otherwise harmless substances, such as pollen, as if they were invaders, a/n ALLERGY can occur.
HIV is a virus that attacks WHITE BLOOD CELLS in the body, weakening the immune system.
Polio used to be fairly common and devastating. Thanks to widespread vaccination against polio, the disease is now considered ABSENT, no longer infecting nearly as many people as it once did.
Arthritis is an example of a/n AUTOIMMUNE DISORDER where part of a person’s body is identified as foreign and attacked by the person’s immune system.
Immunization helps involves the injection of dead pathogens into the bloodstream. This helps in the release of antibodies which helps in protecting the body against further attacks in the future.
Allergy happens as a result of the body system treating and attacking harmless substances.
This is because the ships which brought immigrants into the country had someone who had small pox on board which spread and many got infected and killed due to lack of vaccine and treatment.
Immunization helps people to travel without having to worry about diseases.
Answer:
vaccination
allergic reaction
t-cells
eradicated
autoimmune disease
Europeans had been exposed to the virus that causes smallpox for many generations, allowing them to acquire immunity to the virus. Native Americans were not exposed to smallpox or similar viruses before, so they had no immunity to the virus. In modern times, before traveling abroad, a person often receives vaccinations or other medications to avoid contracting the diseases specific to that region of the world.
Explanation:
12. Sexual reproduction in animals or plants relies on the union of two specialized
cells known as
within which structure does the placenta normally develop ?
Answer:
Uterus
Explanation:
Answer:
Uterus
Explanation:
The female reproductive system mainly takes place here
How do rivers become large as they travel across land
Answer:
groundwater rises, adding water to rivers. tributaries combine, adding water to rivers. ice sheets melt slowly, adding water to rivers. rainfall in an area increases, adding water to rivers.
Explanation:
The answer is B please mark me as brainliest
Angelina is learning how to build circuits. She starts by connecting a light bulb to a battery with copper wires. In her studies, she reads that the current flows due to a difference in potential energy in the system. Which statement describes what is happening to cause current to flow? A. Voltage is when current flows from lower to higher potential energy. B. Voltage is when current flows from higher to lower potential energy. C. Amperes is when current flows from lower to higher potential energy. D. Amperes is when current flows from higher to lower potential energy.
Answer:
B. Voltage is when current flows from higher to lower potential energy.
Explanation:
Voltage refers to the difference in electric potential between two points. Current in the wire always flow from higher potential to lower potential due to voltage. At the electric source, voltage of current is high but when it moves through wire, the amount of current decreases when it reaches to the other end of the circuit. This is because of the resistance present inside the wire which causes heat energy and some of the current is lost.
The correct answer is option B. Voltage is when current flows from higher to lower potential energy.
What is voltage?
Voltage is the difference in charge, in this case, made by the electrons, that results in electrons flowing from a place of high concentration to one of low concentration. We call the flow of electrons current, and we measure voltage in Volts (V).
What is Amperes?It is a unit that we use to measure the intensity of the current.
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Scientists believe that most early mammals were: large very small medium sized none of the above
Answer:
small bcz they had not fully evolved
Answer:
large
Explanation:
List the different forms of potential and kinetic
energy.
Answer:
answer is below :)
Explanation:
types of potential energy:
-Gravitational potential energy.
-Elastic potential energy.
-Nuclear energy.
-Chemical energy.
- electric potential energy
types of kinetic energy:
-Flying Airplane.
-Walking & Running.
-Cycling.
-Rollercoasters.
-Cricket Ball.
-Skateboarding.
What is the difference betwen the modes of nutrition
of fungi and animals?
Answer:
The animals are the consumers of the ecosystem but the fungi have wide range of nutrition from the parasites to the saprophytes mode. Animals have multicellular organization but fungi dont always meed to be multicellular, they may be unicellular also.
What is artificial selection?
A. When 60 percent of a species dies at one time
B. When humans breed an animal for a certain trait
C. When a new allele is formed by mutation
D. When extreme traits are selected by nature
SUBMIT
Answer:
Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.
what is the definition of vacole
a vacuole is a cell inside of the cytoplasm.
What is a good property of an indicator?
Answer:
Acid base indicators are weak and acids and bases, which are used to signify the end point of neutralization reaction. The type of indicator used for a neutralization reaction depends on the strength of the acid and the base, that are involved in the reaction. A good acid base indicator must have a good pH range and it must be able to produce specific and identifiable color in specific acid base medium.
or
Two good properties of an indicator are as follows-
1) It should be specific- It means that the changes, which are measured by the indicator should be expressed in precise terms so that appropriate assessment could be made.
2) It should be time bound- This means that the measurable changes should arrive withing a particular time limit.
Example of indicator- Litmus is an acid base indicator that turns acidic solutions red and basic solutions into blue color.
Why don't ecosystems systems exist between fresh and salt water systems?
Answer: The transition from salt to fresh water is turbulent, vulnerable, and incredibly bountiful
Question: What are the effects of fishing on the reef ecosystem?
Answer:
Additionally, certain types of fishing gear can inflict serious physical damage to coral reefs, sea grass beds, and other important marine habitats. Coral reef fisheries, though often relatively small in scale, may have disproportionately large impacts on the ecosystem if conducted unsustainable.
Explanation:
Explanation:
Additionally, certain types of fishing gear can inflict serious physical damage to coral reefs, seagrass beds, and other important marine habitats. Coral reef fisheries, though often relatively small in scale, may have disproportionately large impacts on the ecosystem if conducted unsustainably.
todo sobre la digestion
Answer: El sistema digestivo humano consiste en el tracto gastrointestinal más los órganos accesorios de la digestión. La digestión implica la descomposición de los alimentos en componentes cada vez más pequeños, hasta que puedan ser absorbidos y asimilados por el cuerpo. El proceso de digestión tiene tres etapas.
Explanation:
why is waters high specific heat good for living things
Answer and Explanation:
Water's high specific heat means that the temperature of the water takes a long time to change. Living things that live near bodies of water experience temperatures different than inland, which is typically advantageous. During the summer, water remains cooler than the air for a period of time, and in the winter, the water remains warmer than the air for a period of time. In turn, the air in the areas with a body of water is typically increased or decreased a few degrees in temperature depending on the season. In the winter, this also produces what is called the "lake effect", in which snow is produced during cooler atmospheric conditions when a cold air mass moves across long expanses of warmer lake water.
A partial Texas food web is shown. The populations of which organisms will
most likely increase as a result of a disease that suddenly reduced the
population of Texas horned lizards. (12C) *
*See attached digaram for the good web being refffered to
Options:
A. Grasses and ants
B. Ants and grasshoppers
C. Grasshoppers and Texas cottonmouths
D. Texas cottonmouths and red-shouldered hawks
Answer:
B. Ants and grasshoppers
Explanation:
Looking at the partial Texas food web that is given below in the diagram attached, it shows that the Texas horned lizard feeds mainly on ants and grasshopper as a secondary consumer in the food web. As a result of this, the population of ants and grasshoppers would be often put in check and regulated.
However, if a disease suddenly reduces the population of the Texas horned lizard, it means that ants and grasshoppers won't be heavily preyed on anymore, since the population of their major predator has now been reduced.
Therefore, a reduction in the population of Texas horned lizard would result in the increase in the population of ants and grasshoppers.
Answer: Ants and grasshoppers
Explanation: I took the test
In roses, red flowers and long stems are dominant traits. A rose plant that is homozygous for both red flowers and long stems is
crossed with a rose plant that is heterozygous for red flowers and homozygous for short stems. What percentage of the offspring
will exhibit red, long-stemmed flowers?
25 percent
O 50 percent
O 75 percent
O 100 percent
Answer:
This is late but the answer is 100%
Explanation:
I got a 100 on the test
The percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option as all of the offspring will show dominant traits, which are red, long-stemmed.
What is genetic crossing?In the context of genetics, traits are characteristics that are passed down from parents to offspring through their genetic material (DNA). These traits are determined by genes, which are segments of DNA that contain the instructions for the development of a particular characteristic. Here, the gene for flower color in roses has two alleles: R (red) and r (white). The R allele is dominant, and the r allele is recessive. Similarly, the gene for stem length has two alleles: L (long) and l (short). The L allele is dominant, the l allele is recessive, and from the cross, all will be dominant.
Hence, the percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option.
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Observations have led to all of the following except ___.
Answer: experimentation and then conversion of experiments into theories
Observations lead to form hypothesis and then deduction which are proved statistically by experiments
Which increases the rate of soil formation?
Mixed layers
More Precipitation
Cooler temperatures
Very hard parent material
Answer: more precipitation
Answer:
B. more precipitation
Explanation:
The soil needs more rain or the organic material will die.
Which correctly describes a difference between the male and female
reproductive systems?
O A. Males store gametes in the ovary.
O B. Females produce gametes every day.
C. Males receive gametes from females.
D. Females produce fewer gametes
What describes the difference between the male and female reproductive systems is that "Females produce gametes every day". Option B. This is further explained below.
What is reproductive systems?Generally, The reproductive system is simply defined as the organs that are involved in the production of children.
In conclusion, The reproductive systems of males and females bear differences affiliated with gametes production.
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Answer:
D. Females produce fewer gametimes
Explanation:
Do I really need to?
The gluten-free diet was originally intended for people with celiac disease, but it’s now become a new fad diet for the general population. Many people state that gluten-free diets are beneficial for people who aren’t sensitive to gluten, while others suggest that there’s no benefit. Use credible resources to evaluate the argument yourself. Do you think there’s sufficient scientific evidence to support the use of a gluten-free diet in people who aren’t sensitive to gluten? Provide evidence that supports your argument.
Answer:
The gluten free diet is helpful for the people that are sensitive to food with gluten it which occurs due to the celiac disease. It was originally meant for the such people but it becomes a new fad. However, there is no compelling evidence to support that gluten free diet helps in health improvements n non sensitive people.
In other hand there are majority of doctors are against the use of gluten free diet is not good for various body organs like heart. A study concluded that there are lower risk of heart disease in people take more gluten. Doctors and various study suggests that people with no celiac disease should not avoid gluten.
Answer:
There’s no benefit to a gluten-free diet for people who aren’t sensitive to gluten. Many websites state benefits of a gluten-free diet. These benefits range from weight loss to improved heart health. None of these sites backed up their claims with scientific research. More credible sites consistently state that there’s no scientific research to back up these claims. Right now, there’s no evidence that supports the benefits of a gluten-free diet in people who aren’t sensitive to gluten.
Explanation: just took test !!
A student observed a dying plant in the corner of their science classroom. They learned the process of Photosynthesis and Cellular Respiration already in class. The students were trying to remember the correct chemical equation for the process. In order for the plant to be successfully creating its own food which chemical equation did the student write correctly?
Answer:
The general chemical equation for photosynthesis is
6CO2 +6 H20 → C6H1206 + 602,
Where CO2 is carbon dioxide, H20 is water, C6H12O6 is glucose, and O2 as oxygen a byproduct.
the process begins with the splitting of water molecules-Photolysis.
2H20 +2 NADP + 8 Photons → NADPH + 2H+2 O. Photons is sunlight that splits the water molecules.
Cellular respiration is the reverse of the process which is the
C6H1206 +6 O2 → 6H20 +6 CO2 +ATPs.
ATPs is the chief product, while C02 is the byproduct.
Explanation:
energy is captured for photosynthesis by
Answer:
Photosynthetic cells contain chlorophyll and other light-sensitive pigments that capture solar energy. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as glucose.
Answer:
Chlorophyll
Explanation:
Energy for photosynthesis is captured by chlorophyll molecules to get it used in photosynthesis
What are the commercial uses of yeast and bacteria? Explain.
Answer:
commercial use of yeast are:
Explanation:
1. yeast is microorganism which is used for large production of alcohol. this alcohol is used in making of wine, beer, whisky as well as industrial spirit.
2. yeast is capable of converting sugar into alcohol .
5. Match the column
a. magnifying glass.
b. Amoeba
c. Ostrich egg
d. chloroplast
e. Mycoplasma
i) single celled organism
il) smallest cell
iii) plant cell
iv) largest cell
v) simplest microscope
Answer:
a-v
b-i
c-iv
d-iii
e-iv
The cause of humanity's increased water consumption is an increased population. What is the effect?
Option are not provided in the question. The complete question is as following:
The cause of humanity's increased water consumption is an increased population. What is the effect?
A. less potable water, a growing threat to biodiversity
B. more potable water, a growing threat to biodiversity
C. less potable water, a decreased threat to biodiversity
D. more potable water, a decreased threat to biodiversity
Answer:
A. less potable water, a growing threat to biodiversity
Explanation:
The increasing population of human causes increase in water consumption that leads to reduction in portable water, which is a growing threat to biodiversity .
Portable water or freshwater is used for drinking by humans beings along with that it provide habitat to many diverse marine wildlife and they are important to local ecosystems as they provide sources of income and food to humans and other wildlife.
Freshwater or portable water play very important role to control flood and erosion.
So, decrease in portable water result into decrease in biodiversity.
Hence, the correct option is A. less potable water, a growing threat to biodiversity .
Can light cause changes metal
Answer:yes
Explanation:Cause metal to be semi conductor
Answer:
yesssssssss!!!!!
Explanation:
Please help I know its a dumb question but is a is a rapitest electronic soil tester same as a alcohol thermometer
Answer:no
Explanation:
Answer:
i think it is no
Explanation:
What is inside the flower and can you describe it pls oh and don’t mind squid -ward ???
Answer:
There are cells
Explanation:
The reason that there are cells in the plant is because it has cells. Dont use this answer because I learned about this years ago and now forgot it but I think it has a certain cell in it but I forgot the name
Answer:
cells also hmu
Explanation:
What's the easiest
way to learn Krebs cycle?
Answer:
"Our City IS Kept Safe And Secure From Mobsters"
Explanation: Capitals represent the first letter.
Oxalacete
Citrate
Isocitrate
Alpha-ketoglutamate
Succinyl-coA
Succinate
Fumarate
Malate
Answer:
Get diagrams and look at what is changing
Explanation:
