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
serg [7]
3 years ago
11

On-center cells: A. are excited by light that falls in the periphery of their receptive field. B. are excited by light that fall

s in the center of their receptive field. C. are inhibited by light that falls in the center of their receptive field. D. are excited by light that falls across their entire receptive field.
Biology
1 answer:
Elena L [17]3 years ago
6 0

Answer: B) are excited by light that falls in the center of their receptive field.

Explanation:

There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.

If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.

Hence, the correct option is B.

You might be interested in
Is hydrogen separating from oxygen part of cellular reparation
Y_Kistochka [10]
No I believe thats the other way around as in photosynthesis. For say water falls on the leaf then the leaf seperates the water from oxygen to give us the oxygen then it starts over to become a cycle.Life
3 0
3 years ago
Create a nucleotide sequence with at least 9 DNA bases. Then, replicate your DNA strand using the appropriate DNA bases.
arsen [322]

Answer and Explanation:

We need to create a nucleotide sequence, but first what are DNA nucleotides? They are the monomers of the entire nucleic acid strand of DNA.

DNA nucleotides have 4 bases: adenine (A), thymine (T), guanine (G), and cytosine (C). When pairing bases, A and T always go together and G and C always go together. (An interesting trick to remember this is Apple in the Tree and Car in the Garage.)

To create our own, we can draw up any combination of A's, T's, C's, and G's. I'm just going to arbitrarily write the following:

A A G C T T C G A T C G A C C

We need to pair these up by replicating it (remember A with T and G with C). The new strand will become:

T T C G A A G C T A G C T G G

Finally, we need to transcribe this back into the original format because replication is creating the same copy of something:

A A G C T T C G A T C G A C C

3 0
3 years ago
Marsupials are found in North America and Australia, but they would not have been able to swim across the ocean. According to sc
nlexa [21]

Answer:it’s C

Explanation:got it right on the quiz

6 0
3 years ago
The relative concentration of water in a hypotonic solution is _____.?
Andru [333]
The relative concentration of water in a hypotonic solution is high
4 0
3 years ago
Read 2 more answers
Penicillin is Choose one: A. produced by a mold and was discovered accidentally. B. a human-designed antibiotic, synthesized to
NeX [460]

Answer:

Option-A

Explanation:

Penicillin is an antibiotic drug that is derived from the fungal species of Penicillium molds especially the<em> Penicillium notatum</em>.  The penicillin acts by disrupting the formation of the cell wall and thus prevents the growth of the bacteria.

The discovery of penicillin was accidental when he was studying the petridish of staphylococcus and he found that due to avoidance while the experiment, molds grew in the petridish.  The area around the mold was clear and clear rings without the bacteria were easily observed. This lead to the discovery of the penicillin compound.

Thus, Option-A is the correct answer.

4 0
3 years ago
Other questions:
  • Which of these best describes a scientific variable
    8·2 answers
  • Organisms are constantly interacting with their environment. Sometimes this interaction has a positive effect on the environment
    7·2 answers
  • If the pendulum is allowed to continue to swing, it will eventually come to a stop. explain why.
    5·2 answers
  • 1,280 billion liters of water divided by 79.9%
    11·1 answer
  • 6. Why are well-defined reading frames critical in protein synthesis?
    9·1 answer
  • Any membrane – bound structure inside a cell that performs a specific(e.g vacuoles store substance in the cell) is known as what
    11·1 answer
  • Which pathogen is nonliving? a bacteria b protozoa c virus d fungi
    11·1 answer
  • What planet was calculated to exist before it was actually seen?
    8·2 answers
  • Glucose dissolves in water because it Select one : O A. ionizes O B. is a polysaccharide O C. is polar O D. is nonpolar
    5·1 answer
  • What is the monomer for starch
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!