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OleMash [197]
3 years ago
12

Explain two ways in Which immunity is produced

Biology
1 answer:
lapo4ka [179]3 years ago
5 0
1. mother to fetus 2. through exposure to the antigen (virus, toxins, or cancer cells).
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There was a change in the environment between
olga nikolaevna [1]

These changes are likely genetic mutations

<h2>Further Explanation </h2>

Evolution is the process of change in all life forms from one generation to the next, and evolutionary biology studies how this evolution takes place. Every generation of organisms inherits traits owned by their parents through genes. <u><em>Changes (called mutations)</em></u> in this gene will produce new traits in the offspring of an organism. In an organism's population, some traits will become more common, while others will disappear. traits that help the survival and reproduction of organisms will be more likely to accumulate in a population than unfavorable traits. This process is called natural selection. The income of more offspring than the number of parents along with the inheritance of these traits is an additional fact about life that supports the scientific basis of natural selection. In a long time, this isolated population will become a new species.

Learn more

Genetic mutation brainly.com/question/793485

Evolution brainly.com/question/312738

Details

Class: Middle School

Subject: Biology

Keywords: Genetic mutation, evolution

4 0
3 years ago
Read 2 more answers
Most studies indicate that tobacco and marijuana tend to be a. substitutes. b. complements. c. unrelated because one good is leg
koban [17]
<h2>Answer is option "b"</h2><h3>Explanation:</h3>
  • The complement systems are a key natural insusceptible barrier against disease and a significant driver of irritation; in any case, these very properties can likewise cause hurt. Unseemly or uncontrolled initiation of compliment can cause nearby as well as fundamental irritation, tissue harm and ailment.
  • Complement gives various choices to tranquilize advancement as it is a proteolytic course that includes nine explicit proteases, one of a kind multimolecular enactment and lytic edifices, a stockpile of characteristic inhibitors, and various receptors that dilemma to actuation sections.
  • Medication configuration is encouraged by the undeniably itemized basic comprehension of the atoms associated with the complement system. Just two enemies of compliment drugs are as of now available, however, a lot more are being produced for sicknesses that incorporate irresistible, provocative, degenerative, horrible and neoplastic disorders.
  • Hence, the right answer is option b "Complements".\

5 0
4 years ago
What was Edwin Hubble's contribution to the field of astronomy?
erastova [34]

Answer:

B he proved that the heliocéntrico model accurately described tour solar system

Explanation:

des

i think

3 0
3 years ago
A student notices that her guppies reproduce most when her fish tank water is slightly alkaline. They stop reproducing if the wa
Gnom [1K]

Answer:

The correct answer is Zones of tolerance

Explanation:

All living organisms such as fish,plants and animals  need water to survive and also the require certain pH level of water in order to be healthy.Its a acid and base balance reaction.Strong acids dissolve into water and its changes water's pH.if water's pH level drops it becomes acidic suppose a fish waste ammonia releases and dissolves in water to form harmless ammonia ions,carbon dioxide ions and hydrogen ions even some limestone also rises pH level and water becomes more basic.To make the tank water alkaline, add some corals and aerate the tank water by fixing an air pump so that excess of carbon dioxide eliminate out and water pH level comes to neutral this is the reason water becomes slightly alkaline and the fishes are able to reproduce.

3 0
3 years ago
Which RNA base bonds with adenine
IgorLugansk [536]

Answer:

Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine

Explanation:

4 0
3 years ago
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