1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
r-ruslan [8.4K]
3 years ago
13

Larry moved from Chicago to Atlanta. For the first two years he lived there he had no allergies in the spring. Then, in the thir

d year, he had very bad allergic reactions to spring pollens. What is the most likely explanation for this delayed effect?
Biology
2 answers:
valkas [14]3 years ago
8 0
This might have been the cause of not being exposed to this specific pollen during his years in Chicago. Allergic reactions can develop when the stimuli presented even when its not contagious causes the immune system to trigger and act in a defensive stance. This delayed effect may have been the cause of the sudden expression of the immune system. 
Leona [35]3 years ago
3 0

Answer:

The answer is c) his body had built up enough antibodies to cause the allergy symptoms. took the test on usa test prep.

You might be interested in
1. Which cells of the pancreas are the endocrine cells? How were you able to differentiate these cells when viewing the slide? D
Arturiano [62]

Answer:

Explanation:

Endocrine cells in the pancreas are referred to as Islets of Langerhan. There are two major types; Beta cell that produce insulin and alpha cells that produce glucagon.

They are identified when viewed under slides based on their colour reactions with histological dyes. Tinctorial techniques that can be used to identify them under microscope includes; Mallory-Heidenhain azan trichrome, chromium hematoxylin and phloxine, aldehyde fuchsin, and silver impregnation methods.

Islets of Langerhan cells make up minority of the cell. Majority of them are for exocrine functions.

8 0
3 years ago
Where does the heating process begin in a hot water heater system?
mote1985 [20]

Answer: Dip tube. This tube, located at the top of the tank, serves as the entry point for water as it flows into the tank. The water then travels to the bottom of the tank, to the area known as the combustion chamber, where the heating process begins.

Explanation: Thats what the internet says, and the internet is almost always right, hope you get it right.

3 0
3 years ago
The outer ear consists of the _____.
Svet_ta [14]
The outer ear consists of two things and they are the auricle and the ear canal , which is also called the auditory canal.

The auditory canal  goes from the outer ear to the middle ear.

The auricle is what we see of the ear...the physical part of the ear. It can be called the pinna as well.


I hoped that this helped and good luck.
5 0
3 years ago
Read 2 more answers
What is not a primary cause of eroding rock?
Artemon [7]
Wind because its not mechanically eroding them..
4 0
3 years ago
Read 2 more answers
In humans, there are four blood types: A, B, AB and O. Each parent can give their offspring one of three blood type alleles, IA
Delvig [45]

Answer: One parent is IAi and the other parent is IBi

Explanation: As this trait is codominant, the child can inherited IA, IB or i.

Tina has type O, which means she is ii and her sister is AB, so her genotype is IAIB. Now, to have a child with a recessive trait both parents has to carry at least one allele for the recessive, i. Rosa is type AB which means she had to have inherited one allele IA from one of her parents and the other IB from the other parent. Thus, one parent is IAi and the other is IBi.

5 0
3 years ago
Other questions:
  • How are the hardy-weinberg principles used in the analysis of codis genotypes and other strp-locus comparisons?
    7·1 answer
  • which of the following of mandels conclusions is a necessary foundation for Darwin's theory of natural selection
    7·2 answers
  • What are the functions of the high-energy electrons in the electron transport chain?
    11·1 answer
  • Discuss how science plays a crucial role in many courtrooms?
    15·2 answers
  • Why do we rarely see food chains with quinary (5th level) consumers?
    8·2 answers
  • Which of these terms refers to materials leaving the cell? A endocytosis B exocytosis
    10·1 answer
  • In the developing chick vertebral limb bud, the zone of polarizing activity (ZPA) organizes a pattern along the anteroposterior
    10·1 answer
  • Which arrow points to a bond formed by condensation between a fatty acid and a glycerol?
    7·1 answer
  • What kind of cell contains DNA and a nucleus?
    7·2 answers
  • To generate a knockin mouse, a scientist introduces to ES cells a construct with a mutant exon and within an adjacent intron, lo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!