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
Romashka-Z-Leto [24]
3 years ago
12

Which of the following are the two main sources of oxygen in the air we breathe?

Biology
1 answer:
Gwar [14]3 years ago
3 0

Answer:

b

Explanation:

You might be interested in
Which of the following correctly shows one path that energy would flow through this ecosystem?
natulia [17]

Answer: g

Explanation:

6 0
3 years ago
DESCRIBE what activation energy is.
Semmy [17]
Activation energy is the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.

for example , striking a match on the side of a matchbox provides the activation energy, in the form of heat produced by friction.
5 0
4 years ago
Read 2 more answers
Look at the picture below.
Gnesinka [82]

Explanation:

This is an atom with a covalent bond

5 0
3 years ago
Read 2 more answers
A gardener accidentally trims the leaves of a green plant too short. The leaves are now much smaller. He notices that the plants
Tamiku [17]
I believe the correct answer from the choices listed above is option D. The sentence that best explains why the plant grows more slowly would be the <span>plant has less cholorphyll to produce energy. Since it can be found in the leaves of the plant. Hope this answers the question.</span>
3 0
3 years ago
Read 2 more answers
Which of the following plants have swimming sperm
MaRussiya [10]
The answer would be both A and B (: Which is C.
8 0
3 years ago
Other questions:
  • Choose the true statements concerning animal versus human blood from the list below i. human blood contains red blood cells, whi
    13·1 answer
  • Most scientists classify organisms into
    8·1 answer
  • Genetic drift always causes:________ a) equilibrium in genetic frequencies. b) maladaptive changes in gene frequencies. c) adapt
    8·1 answer
  • Explain how trees allow for larger ecosystems and more resources.
    9·1 answer
  • 36. Mitosis requires the chromosome to be replicated into______ copies.<br> a. 2<br> b. 6<br> c. 1
    9·2 answers
  • What will happen if deforestation continues to destroy the green plants on the
    9·2 answers
  • Identify the functions of the structures indicated.
    13·2 answers
  • The shorter the wavelength the higher the frequency.
    9·2 answers
  • The researchers set up experimental and control microcosms, or small artificial ecosystems, to measure the release of minerals f
    8·1 answer
  • Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!