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
Liono4ka [1.6K]
3 years ago
10

David drinks two cups of coffee before leaving for a four-hour drive to visit a friend. What effect will the coffee have on davi

d's behavior
Biology
1 answer:
podryga [215]3 years ago
8 0

Answer:

The coffee will increase alertness in David while driving.

Explanation:

A study by A.Nehlig shows that if 75 mg of coffee, i.e a cup of coffee, is taken every four hours then it helps in improving the mood of a person and also increases the alertness. However, if increased amount of coffee is consumed then it results in tense arousal like anxiety and nervousness. As David consumed two cups of coffee, which is more than the 75 mg uptake, so he is most likely to have an increased alertness while driving.

You might be interested in
The important research areas to pursue in microbiology. <br><br>​
ira [324]
Laboratory technician,research associate,laboratory manager,research scientist, lead scientist and-principal investigator
7 0
3 years ago
The material outside of and between cells is called
ioda

Answer:

plasma membrane

Explanation:

7 0
2 years ago
Which of the definitions below best defines a mutation?
victus00 [196]

The correct answer is: A. A change in a cell's genetic material.

Mutations occur in DNA as a result of mistakes during the DNA replication (when repair mechanisms don’t fix it) or as the result of environmental factors (e.g. UV light). Mutations can have positive impact, by increasing the genetic variation or can have negative effect, causing the diseases or cancer.

8 0
3 years ago
How much of the earths surface is covered in continental crust
LuckyWell [14K]
The answer is 30 to 80 percent its in google
3 0
3 years ago
The hardy-Weinberg principle is written as the equation p^2+2pq+q^2=1 what does p represent
poizon [28]

The Hardy-Weinberg equation is:


p^{2} +2pq+q^{2}=1


where p generally represents the frequency of the homozygous dominant population.


The q usually represents the frequency of the homozygous recessive population, and the 2pq term represents the frequency of the heterozygous population.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Human activities, particularly the combustion of ____________, are altering the climate by increasing CO2 in the atmosphere.
    12·2 answers
  • What poses a great threat to the entire human species;poisonous abiotic factors or poisonous biotic factors?
    10·1 answer
  • The hypothesis the evolution occurs at a slow constant rate is known as
    6·1 answer
  • When seeing her preterm infant in the neonatal intensive care unit for the first time, a mother exclaims, "my baby is so little!
    5·1 answer
  • Heterochromatin differs from euchromatin in that heterochromatin
    15·2 answers
  • What molecule provides the oxygen released from photosynthesis?
    6·1 answer
  • Erin hears a rattling noise as she hikes through the desert. Her muscles tense and she breathes faster. According to Selye, Erin
    9·1 answer
  • What is the most likely position for the hurricane indicated by the wind readings from the three weather stations shown?
    9·2 answers
  • Which two factors are most likely to cause a plants guard cells to open its stomata.
    10·2 answers
  • What is typhoid fever?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!