Answer: A
Explanation: Vaccines create memory cells with a weak version of the pathogen, so when they meet that pathogen again the body can respond more quickly and more efficiently since they have already been exposed to the pathogen.
Answer:
The importance of having the US Forest Service, the Bureau of Land Management, US Fish and Wildlife Service, and the National Park Service is to manage land resources for conservation and the development of natural resources.
Explanation:
The US Bureau of Land Management was mainly established to manage lands for different uses;
The US Forest Service was established to sustainable management of forest resources vis a vis conservation and sustainable usage;
The US Fish and Wildlife Service was established to conserve and protect wildlife/fishes with end goal being in the benefit of the populace;
The National Park Service was established to oversee all the National Park Systems and ensure that their intensities are maintained for the continuous enjoyment, entertainment as well as education of the masses.
If the main aim of establishing each body is examined closely, it would be discovered that their primary function is to manage land resources, conserve biological diversity and the environment's integrity as well as oversee the use of land and the resources it contains.
The items needed to complete a circuit include the following:
<h3>Functions of the parts of a Circuit.</h3>
The wire helps in the distribution of the electric current from the power
source in order to ensure it gets to the load.
The battery contains compounds which is responsible for providing the
energy required to power up the load.
The load could be a bulb, fan etc and is the final destination of the electric
current. The electric current powers up the load and makes it functional.
The switch helps to regulate the flow of electric current and has an 'on and
off button' to prevent energy wastage when not in use.
Read more about Circuit here brainly.com/question/2969220
Answer:
Human Activitys.
Explanation
The goods we use, travel around the world very quickly, and they often carry uninvited species with them.
Explanation:
Scientist disputes the claim that the Loch Ness monster exists beyond folklore because no one has truly seen them. Loch Ness monster in Scottish folklore is a monster that resides in the Scottish highlands in Scotland.
Scientists follow methods to substantiate a claim. A body of evidence must be available to justify an observation in the scientific realm.
No clearcut picture of the monster has been taken.
The monster is merely a folklore myth just like dragons.
Science does not work with hearsay and claims that cannot be substantiated and proven.
Learn more:
Experiment brainly.com/question/5096428
#learnwithBrainly