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
andreyandreev [35.5K]
3 years ago
14

Which two substances are among the four major types of organic compounds made by living things?

Biology
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

d and c

Explanation:

You might be interested in
Undigested food is pushed out the body through the ___.
ella [17]
The answer should be rectum.
4 0
3 years ago
Read 2 more answers
What role does the overproduction of organisms play in natural selection?
Nonamiya [84]
They could look for similarities in the DNA or protein structuresof the organisms<span> and similarities in early development</span>
6 0
2 years ago
What is the major source of energy for food chains? A.Water B.Air C.Sunlight D.Grass ​
Marina CMI [18]
Sunlight is the main energy source
4 0
2 years ago
The immune response is a dynamic process that initiates with an antigen-independent response, which becomes more focused and pow
prisoha [69]
<h2>False </h2>

Explanation:

The immune system develops integrated innate and adaptive modules that are pathogen type-specific and no single response can effectively control all types of pathogens

Both innate and adaptive immune system operate in cooperative and interdependent ways

Innate immune system is present since birth in an organism and is non specific in nature which means acts against all foreign antigens and molecules and provides first line of defense against pathogens

Adaptive immunity system is the acquired one which is capable of recognizing and selectively eliminating specific foreign antigens and is antigen specific which means can discriminate among different antigens; also has the ability to respond to various kinds of epitopes of pathogens

6 0
3 years ago
Producers are organisms that do not need to eat other organisms to obtain energy. A. Which organism is a producer in this food c
tankabanditka [31]

Answer:

A. plants

B. water, sun and carbon-di-oxide

4 0
2 years ago
Other questions:
  • How are algae different from plants?
    11·2 answers
  • Transgenic organisms can be scientifically or commercially useful only if __________
    6·1 answer
  • What types of materials are expelled from cells during exocytosis?
    9·1 answer
  • Matter that has a definite volume and a definite shape is a
    7·1 answer
  • Now we need to prepare a buffer that has a pH of 7.4. We need this specific pH to
    10·1 answer
  • In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain
    12·1 answer
  • Which tectonic plate boundary caused the structure that is circled in the image?
    14·1 answer
  • PLEASE ANSWER FAST
    7·2 answers
  • A thermocline is most closely associated
    8·1 answer
  • TRUE OR FALSE Thyroid hormones increase the sensitivity of the cells to growth hormone.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!