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
Serjik [45]
3 years ago
10

In response to a stressful work deadline, jonas' heart rate increased and blood raced to his skeletal muscles. these physical re

actions best characterize the ________ phase of the ________.
Biology
1 answer:
GarryVolchara [31]3 years ago
5 0

The right answer is the first phase of the general adaption syndrome.

The concept of stress was introduced by Hans Selye. He describes the mechanism of the adaptation syndrome, that is to say all the modifications that allow an organism to bear the consequences of a natural or operative trauma.

In fact, it is the double-perception of a state of divergence between a demand for adaptation at a given moment and the ability to cope with it. It is an energy expenditure. It can be positive or negative.

The stress syndrome evolves in three successive stages:

*"Alarm reaction": the defense forces are mobilized

*"Resistance stage": adaptation to the stressor

*"Stage of exhaustion": inexorably reached if the stressor is sufficiently powerful and acts a long time.

You might be interested in
In which stage do vertebrate embryos or offspring show the most similarities?
prisoha [69]

Answer:

Explanation:

I think the answer is B middle stage

Please give me brainliest if it helped

5 0
3 years ago
Random changes in allele frequency in a population are called:
kogti [31]
Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency. 

All the other cases; answers, here aren't correct and don't apply. 
8 0
3 years ago
Single-celled eukaryotes arose from prokaryotes. Later, which larger, more complex organisms did they evolve into?
sdas [7]
A l,ll,lll and lV would be the answer because a eukaryote is an organism with complex cells, or a single cell with a complex structures. In these cells the genetic material is organized into chromosomes in the cell nucleus. Animals, plants, algae and fungi are all eukaryotes. There are also eukaryotes amongst single-celled protists.
5 0
3 years ago
Help please brainliest involved!!!
kogti [31]
The answer is

A

Behavior isolation is behaviors involved in mating which could also cause it to prevent mating
8 0
3 years ago
Read 2 more answers
Which Phase Of Cell Division Is Shown?
lianna [129]
I would believe a. prophase

3 0
3 years ago
Read 2 more answers
Other questions:
  • "during which phase of mitosis does the nuclear membrane dissolve completely and the chromatid pairs arrange themselves in a sin
    8·1 answer
  • What happens in the nitrogen cycle?
    14·1 answer
  • Which complication to phylogenetic inference is most likely to be widespread in a group of species that have undergone an evolut
    14·1 answer
  • Which is an incorrect statement about tree bark? The bark that surrounds the tree was never alive. Tree bark is made of fibrous
    5·1 answer
  • What organ releases glucose to help maintain normal blood glucose levels?
    5·1 answer
  • Structures that appear to have lost size and function over the proposed evolutionary history of an organism are called _________
    10·1 answer
  • Which of the following statements is false?
    9·1 answer
  • Ferns tend to live in which of the following habitats?"
    10·2 answers
  • The image below shows several different organisms that have the ability to fly. All of these organisms have adapted to similar e
    5·1 answer
  • Atp is not generated directly in the citric acid cycle. Instead, an intermediate is first generated by substrate-level phosphory
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!