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
Vsevolod [243]
3 years ago
11

In what time period did archaea first formed?

Biology
1 answer:
zmey [24]3 years ago
3 0
3.5 billion yrs ago
You might be interested in
Hyperpolarization means that the ________. Group of answer choices membrane potential becomes more negative than the resting pot
gladu [14]

Answer:

Hyperpolarization means that the membrane potential becomes more negative than the resting potential.

Explanation:

The voltage across the membrane of a neuron that is at rest and not sending out signals is called the resting membrane potential, or just the resting potential. The concentration gradients of ions across the membrane and the amount of each type of ion that can pass through the membrane determine the resting potential. When a neuron is at rest, there are different levels of sodium and potassium on both sides of the cell membrane. Ions move down their gradients through channels. This creates a difference in charge, which gives rise to the resting potential.

When the membrane potential at a particular location on the neuron's membrane gets more negative, this phenomenon is known as hyperpolarization. Depolarization, on the other hand, occurs when the membrane potential becomes less negative (more positive). Both depolarization and hyperpolarization can take place as a result of the opening and closing of ion channels in the membrane, which changes the rate at which certain types of ions can enter or leave the cell.

<em />

<em>Your question is incomplete, but most probably your full question was </em><em>Hyperpolarization means that the membrane potential becomes  Group of answer choices </em>

<em>more negative than the resting potential </em>

<em>more positive than the resting potential</em>

Learn more abour hyperpolarization here:

brainly.com/question/12982897

#SPJ4

3 0
1 year ago
Several factors can lead to speciation. Eastern and western meadowlarks are similar birds whose habitats overlap in the United S
m_a_m_a [10]

The correct answer is option C, that is, behavioral isolation.  

The phenomenon of behavioral isolation takes place when two populations possess the tendency of interbreeding, but exhibit distinctions in courtship rituals or other kinds of behavior. For example, the western and eastern meadowlarks are very identical birds whose habitat overlap in the middle of the United States.  

However, the members of the two species will not mate with each other, possibly as they use different songs in order to fascinate males. The eastern meadowlarks will not respond to the songs of western meadowlarks, and vice versa.  


5 0
3 years ago
Read 2 more answers
Sliding a box across the floor.....Desirable or not desirable friction??
True [87]
Isnt it not desirable? you dont want friction to act when you push a box

7 0
3 years ago
Select the correct answer from each drop-down menu.
Natalija [7]

Answer:

The first blank is "<u>Food Service workers</u>" The Second blank is "<u>Housekeeping Staff</u>".

Explanation:

House keepers sanitize the room and surfaces for the next guest, and food service workers have guidelines they must follow to insure every customers safety.

5 0
3 years ago
Please help me this is science
-BARSIC- [3]

Answer:

Orgams

Explanation:

Organs

8 0
3 years ago
Other questions:
  • A 4-year-old abused child, after being hospitalized for severe injuries, is placed in temporary foster care. the foster family c
    8·1 answer
  • Which viral genome is likely to require an RNA-dependent RNA polymerase for transciption upon viral entry?
    10·1 answer
  • The term "hyphema" is defined as: Select one: a. compression of one or both optic nerves. b. blood in the anterior chamber of th
    7·1 answer
  • The range of cattle egrets has expanded between 1937 and today. how would an ecologist likely explain the expansion of the cattl
    6·2 answers
  • What area of the brain exerts inhibitory control over the areas involved in emotions parietal?
    11·1 answer
  • Membrane.
    14·1 answer
  • What household items (other than a battery) represents mitochondria?
    7·1 answer
  • Normally, how many chromosomes are required to determine the outward expression of a trait?a homologous paironly oneany twotwo p
    8·1 answer
  • What types of relationships do you engage in daily? Check all that apply.
    5·1 answer
  • According to the information on the periodic table, which of the following could represent element X?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!