Answer:
Passive
Explanation:
In addition to innate immunity and acquired immunity, there is a different type of immunity called passive immunity.
This arises when someone receives the antibodies from someone else for the purpose of preventing (or facing) an infectious disease.
While these antibodies last a few weeks or months, they have the benefit of providing immediate protection.
Examples of passive immunity:
- They are the maternal antibodies that babies receive through the placenta during pregnancy.
- Injection of antisera, produced in animals or other people, such as serum immuniglobulin for hepatitis and tetanus antitoxin.
2. Describe how a food chain differs from a food web and explain what the arrows on the food chain show
Answer:
need help
Explanation: tell me
b. Exponential growth curves show fast growth rates followed by slow growth rates.
c. No organisms in nature experience exponential growth rates.
d. Exponential growth curves are S-shaped.
The correct option is A.
Exponential growth curve is a type of curve that is obtained when a resource is abundant for a particular population of specie. In this case, the growth rate of each individual in the population remain the same and this makes the population to grow rapidly and increase in size. Exponential growth curve is J shaped and is usually found in R selected species. R selected species are those species that have short life span and high rate of reproduction. An example of this is mosquito.
The statement "exponential growth curves are common for R-selected species" is TRUE about exponential growth curves.
The r-selected species are composed of individuals whose reproduction is directly influenced by the biotic potential.
This biotic potential is also known as the maximum reproductive capacity, which is dependent on the carrying capacity.
Conversely, K-selected species are composed of individuals that can reproduce at a young age.
In conclusion, the statement "exponential growth curves are common for R-selected species" is TRUE about exponential growth curves.
Learn more about R-selected species here:
b. industry
c. agriculture
d. none of the above
Forestry does not contribute to water pollution. Therefore, option A is correct.
Water contamination is the tainting of bodies of water, typically as a result of human activity, which has a detrimental impact on their uses. Aquifers, reservoirs, lakes, rivers, seas, and groundwater are all examples of bodies of water. When contaminants are introduced into these water bodies, water contamination results.
The main causes of water pollution are bacteria, viruses, parasites, insecticides, pharmaceuticals, plastics, feces, radioactive materials, fertilizers, and pesticides. These compounds are frequently invisible contaminants since they do not always alter the color of the water.
Industry and agriculture cause water pollution, while forestry does not. Hence, option A is correct.
Learn more about water pollution, here:
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Answer: d none of the above
Explanation:
:)