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
vova2212 [387]
4 years ago
11

A disease-fighting protein created by the immune system in response to the presence of a specific antigen is called an:

Biology
1 answer:
Bingel [31]4 years ago
7 0
Antibody ( fights bacteria etc )
You might be interested in
There are equal numbers of protons and electrons in neutral atoms.<br><br> True <br> False
Juliette [100K]
True, there are equal numbers of protons and electrons in neutral atoms
6 0
3 years ago
Read 2 more answers
Which type of relationship exists between non-native kudzu and native tress and shrubs
arlik [135]

The correct answer is - b) parasitism.

The kudzu is a plant that has adapted to get stuck to the other plants, usually trees and bigger shrubs, and get nutrients and water through them. In this way, the kudzu shows elements of parasitism, as it is using a host plant in order to satisfy its needs.

The native plants and shrubs will have a big problem with an introduction of the kudzu in their environment. They will not have a defense mechanism, and the kudzu will spread out very quickly and suck the nutrients and water out of them, hindering their growth and even killing them over the coarse of longer period of time.

This would be a prime example of parasitic relationship between the kudzu and the native plants.

4 0
3 years ago
Read 2 more answers
How do messages travel from one neuron to another
ale4655 [162]

Answer:When neurons communicate, an electrical impulse triggers the release of neurotransmitters from the axon into the synapse. The neurotransmitters cross the synapse and bind to special molecules on the other side, called receptors. Receptors are located on the dendrites. Receptors receive and process the message.

Explanation:

3 0
3 years ago
Describe the effects of NE and Ach on contractile force that you observed today. Given your knowledge of sympathetic and parasym
Afina-wow [57]

Answer:

The answer is Norepinephrine.

Explanation:

Acetylcholine (Ach) and Norepinephrine (NE) are both chemical substances (neurotransmitters) released primarily by nerve cells and they affect different parts and systems of the body. Acetylcholine mostly targets the muscles and the brain and it is a part of the parasymphatetic nervous system whereas norepinephrine targets the whole body and has an effect that leads to the contraction of muscles and the increase of the heart rate. Norepinephrine is a part of the symphatetic nervous system.

Since the symphatetic nervous system is responsible for the crucial "fight-or-flight" response of our body, it has a more dramatic effect on the muscle contraction. Norepinephrine, being a part of the symphatetic nervous system, should result in a more drastic change in contractile force.

I hope this answer helps.

3 0
4 years ago
The negative effects of tilling include _____. A increased soil erosion B reduced soil drainage C reduced need for energy input
Vikentia [17]

Answer:

A

Explanation:

Tilling agitates the topsoil and removes ‘unnecessary’ vegetation so the main crop can grow without competition. Tilling improves soil aeration and drainage for plants to grow well.  Nonetheless, it can lead to other consequences such as soil erosion because it loosens the soil and makes it easy to be carried away by wind and water.

8 0
3 years ago
Other questions:
  • After fertilization, the zygote contains 28 chromosomes. what is the number of chromosomes present in the gametes?
    7·1 answer
  • The nurse should question which prescription for medications for a client with acute pancreatitis? furosemide 20 mg iv push imip
    13·1 answer
  • Which examples demonstrate growth of an organism as a result of mitosis?
    8·2 answers
  • Why do cars rust more easily in wet climates than drier climates?
    14·1 answer
  • Which of the following statements best defines the term operon?
    5·1 answer
  • The monarch butterfly stores a poisonous
    7·1 answer
  • One way scientists can analyze and interpret data to identify potential environmental factors is by
    6·1 answer
  • Standard SB3
    14·1 answer
  • Which tides are the highest?
    6·1 answer
  • as-120 overcomes resistance to atp-competitive fgfr inhibitors in patients with fgfr2 fusion–positive intrahepatic cholangiocarc
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!