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
AlladinOne [14]
2 years ago
7

Help please i beg i don’t know

Biology
1 answer:
Setler79 [48]2 years ago
8 0

Answer:B, D

Explanation:

When the roller coaster starts flying down the hill, it gains kinetic energy and loses potential energy.

You might be interested in
Which step in the process of photosynthesis is dependent on
cestrela7 [59]

Answer:

C

Explanation:

water is combined to be essential in food processing (photosynthesis)

7 0
2 years ago
Read 2 more answers
Veins have valves which allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direc
Valentin [98]

Answer:

Arteries carry oxygenated blood away from the heart. Veins carry the blood back to the heart. Veins contain valves that ensure blood flows in only one direction. Arteries don’t require valves because pressure from the heart is so strong that blood is only able to flow in one direction.

Explanation:

8 0
2 years ago
Read 2 more answers
Where does anaerobic respiration occur in the cell?
nirvana33 [79]

Answer:

cytoplasm

Explanation:

8 0
2 years ago
The frog population in the Amazon basin varied. Every 500 years, there was a mutational change leading to speciation. In between
Ipatiy [6.2K]
Punctuated equilibrium, it is rapid evolution with little change in between
5 0
2 years ago
Read 2 more answers
How to identify oxygen and carbon dioxide?<br>​
Genrish500 [490]

Answer:

Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What does Osmosis mean?
    9·2 answers
  • Which physical change takes place when an igneous rock turns into sedimentary rock?
    8·2 answers
  • The paragraph describes mitochondria and chloroplasts. WHICH sentence in the paragraph provides the strongest evidence for the e
    10·1 answer
  • Is a picked apple alive? Think about the five criteria: Contain cells, reproduce, Growth and Development, Obtain and use energy,
    8·1 answer
  • Which color has the shortest wavelength<br><br> A. White<br><br> B. Red<br><br> C.Violet
    8·2 answers
  • Which of the following is most likely to result in an action potential at a postsynaptic neuron? Which of the following is most
    6·1 answer
  • Describe DNA’s important genetic role in a few sentences below.
    15·2 answers
  • The nucleoside analogue acyclovir, which is used to treat herpes simplex virus (HSV) infections, lacks a 3′ hydroxyl group (–OH)
    8·1 answer
  • Besides antibodies _________ are made after an active immune response.
    10·1 answer
  • 'A', 'C' and 'B12' are examples of what substances?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!