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
Ede4ka [16]
3 years ago
9

Two squirrel varieties (the Abert squirrel and the Kaibab

Biology
1 answer:
Katarina [22]3 years ago
3 0

Answer:

B. Disruptive Selection

Explanation:

the population is divided into two distinct groups, or is disrupted so the gentics start to vary between the separted populations over time.

You might be interested in
Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect
kolezko [41]

Complete question:

Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect gene expression. Which effector pathway is characterized by ion flux through transmitter-activated channels resulting in an altered membrane potential and neuronal activity?

A.  Slow effector pathways

B.  Modulated effector pathways

C.  Rapid effector pathways

D.  NMDA glutamate receptor pathways

Answer:

D.  NMDA glutamate receptor pathways

Explanation:

The NMDA glutamatergic receptor is a cationic channel receptor modulated by a ligand that allows the transport of Na+, K+, and Ca2+. Under certain situations, it exhibits particular permeability to Ca2+. The receptor has different regions that are susceptible to modulation by endogenous and exogenous agents. The receptor can be found at most excitatory synapses, where it responds to the neurotransmitter glutamate. During synapsis, the presynaptic membrane releases L-glutamate, which is received by NMDA glutamatergic receptor. The receptor plays a regulatory role because activates signaling cascades that depend on calcium.

These receptors are involved in normal synaptic transmission, in a diverse physiological phenomenon, and might be responsible for neurodegenerative processes.

3 0
3 years ago
Karina is looking at a group of cells under the microscope. The organism has many cells, each with a cell wall and green chlorop
Alisiya [41]
The kingdom would be Plantae because it has membrane bound organelles as well as green chloroplasts, and a nucleus.
3 0
3 years ago
Read 2 more answers
What is the mean of the data set [3,2,2,12,6,5,14,4]?<br><br>A.2<br>B.4<br>C.6<br>D.7
zysi [14]

Answer:

6

Explanation:

To find the mean of a data set, add all the values in the set together, and then divide the result by the number of values in the set.

3 + 2 + 2 + 12 + 6 + 5 + 14 + 4 = 48

There are 8 values in the data set.

48/8 = 6

So the mean of the data set is 6.

8 0
3 years ago
What is the era of the multicellular algae
viva [34]

Answer:

its the phanerozoic era

3 0
3 years ago
1. A molecule of gas ___ phosphate groups attached to it. When the cell needs energy, it converts ATP into ___. When the cell is
masya89 [10]

Answer:

three

ADP

ADP

ATP

Explanation:

8 0
3 years ago
Other questions:
  • If an adult dog has 78 chromosomes, what is the number of chromosomes in a dog's sperm cell ?
    11·2 answers
  • Which of the following reasons explains why electrical cords are plastic coatings with metal wires on the inside? A.Both plastic
    12·2 answers
  • How do organic compounds differ from inorganic compounds?
    12·1 answer
  • Susannah has an intense fear of flying and endures flights with extreme distress. Although she knows her fear is irrational, it
    13·1 answer
  • Movement of liquid or gas particles from a high to a low concentration
    11·2 answers
  • What is the optimum ph of most enzymes in the body
    11·1 answer
  • in a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little a. noise. b. shaking. c.
    9·2 answers
  • In the USA, many people want to cut their
    10·2 answers
  • Does anyone know how to mark someone Brainllest?
    8·2 answers
  • Select the CORAL REEF tab. Set the Black band infection rate to 100%. Click Advance year several times. Which coral appears to b
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!