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nekit [7.7K]
3 years ago
13

Example of active immunity

Biology
2 answers:
-Dominant- [34]3 years ago
8 0

Answer:

Example of natural active immunity is fighting off cold and artifical active immunity is building up a resistance to a disease due to immunization and allergic reaction is an response to antigen resulting from active immunity

leonid [27]3 years ago
6 0

Answer:

he immunity which results from the production of antibodies by the immune system in response to the presence of an antigen.

Explanation:

he immunity which results from the production of antibodies by the immune system in response to the presence of an antigen.

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Can mold make u sick ​
mariarad [96]

Answer:

It depends on the mold.

Explanation:

Blue cheese, as well as all cheeses, are molds. These are safe to eat. However, eating moldy bread will make you sick, and while it is usually not fatal, it is best to consult a doctor. If you inhale black mold spores, it will grow in your lungs and eventually kill you.

6 0
3 years ago
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This is a star that is generating light and heat by the conversion of hydrogen to helium by nuclear fusion in its core.
dolphi86 [110]
The correct answer is main sequence

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The Environmental Policy Act of 1969 was instituted as a follow up regulation to major environmental issues that occurred in
tatyana61 [14]

Answer:

The given statement is true.

Explanation:

The enactment of the Environmental Policy Act or the EPA in 1969 was done to monitor the issues of the environment that took place in the 1960s. It was the major and the primary law, which was postulated at that time to solve environmental issues in the United States. The enactment of the EPA law was done for various reasons, some of which are as follows:  

1. To better the health of human beings.  

2. To generate harmony between nature and humans.  

3. To encourage efforts to reduce destruction to the environment.  

6 0
3 years ago
Five grams of salt dissolved in 100ml of water to form a salt-water solution. The solution is heated and the water boiled away.
malfutka [58]

Answer:

5 grams

Explanation:

7 0
3 years ago
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1.
SSSSS [86.1K]
1-The correct answers is C- evolutionary classification.
Evolutionary classification/taxonomy is a branch of biological classification. The objective is to classify organisms and group them based on their shared descent, progenitor-descendant relationship and degree of evolutionary change. Now this classification can be done by comparing DNA sequences of the organisms and seeing how many they have in common

2- The correct answer is A-cladistic analysis.
A cladistic analysis is focused on categorizing the organisms based on their derived characters. And what is that? that means they are getting categorized
according to their evolutionary relationships( from ancestral characters).
So, species are going to be classified according to how recent their common ancestor is. If two species have a more recent ancestor they will end up in the same group
If the common ancestor between them is far, the distance between the respective taxa will be bigger.

3- The correct answers is C.
A derived character is a characteristic that appeared throughout evolution, still remains in a lot of different taxonomic groups and allows us to identify those groups.
From the options given, C is the only correct one because the presence of hair (a derived character)  only exists in mammals( the group). Other animals don't share that trait.


4-The answer is A.
In each node, a taxon was only one but then was divided into two taxa. Therefore, each node will represent a common ancestor of the taxon.
The correct option is A because the last node or terminal node is the hypothetical last common ancestor of the taxon on the cladogram.

5-  The correct answer is A.-DNA can solve evolutionary puzzles.
Dna has been helping understand how an organism is similar to more than one species, and that way, we can classify the organism the best way possible.
This can be achieved by comparing the nucleotides of the organism we want to classify, with other species. There are databases that have all the DNA sequenced so, what's left to do is count the common nucleotides and their positions.
3 0
3 years ago
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