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
Alecsey [184]
3 years ago
14

Which idea did Ptolemys model use to explain why the planets appeared to move backward as they moved in thier orbits

Biology
2 answers:
MArishka [77]3 years ago
7 0

Answer:

C

Explanation:

lorasvet [3.4K]3 years ago
3 0

C. the planets revolved around the sun

You might be interested in
Propane is burned to provide the heat in many cooking grills. The chemical
tangare [24]

Answer: it's 3CO2+4H2O+Energy

Propane is a linear alkane of formula C3H8. It is mainly used as fuel (this is the main component of liquefied petroleum gas) in cooking and chemical industry reactions.

The reaction of its complete combustion by the presence of oxygen is:

C3H8 (gas) + 5O2  ==> 3 CO2 + 4H2O + energy (2220⋅kJ)

As we can see, propane can release carbon dioxide and water as every combustion reaction, and a lot of energy in the form of heat.

6 0
1 year ago
A protein helps transport a neutral substance from a region of higher concentration to a region of lower concentration. The tran
LuckyWell [14K]

Answer: The correct answer is option C

FACILITATED DIFFUSION.

Explanation: FACILITATED DIFFUSION is a form of passive transport,it is the process by which substances(molecules) move from a region of higher concentration to a region if lower concentration along their concentration gradient through the help of a membrane transporter forming a pore or channel(Protein).

Facilitated diffusion dies not require high energy to occur since a concentration gradient is involved.

3 0
3 years ago
Read 2 more answers
Wich is a nitrogen base that is located within an RNA molucule, but NOT within a DNA molecule?
gtnhenbr [62]

<u>Answer:</u>

The correct answer is Uracil which is nitrogen base found in RNA.

<u>Explanation:</u>

Uracil is a nitrogenous base which is located within an RNA molecule but not within a DNA molecule.

Uracil, represented by the letters A, G, C and U, is one of the four nucleobases that are found in the nucleic acid of RNA which binds to adenine.

While thymine is present in the DNA and binds to adenine.

6 0
3 years ago
100 Points plz help!!!
Andru [333]

Yeah the answer above me makes sense...

5 0
2 years ago
Examine the genotypes shown, there is a pattern that explains why polygenes are also called “ADDITIVE.” What is the pattern?
Otrada [13]
The pattern that explains why polygenes are called additive are the dominant and recessive genes incorporated.
5 0
3 years ago
Other questions:
  • Jaden's father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden's lack of sensitivity to
    6·1 answer
  • Which gastrointestinal (gi) change may be found in the client with burn injuries?
    7·1 answer
  • Which of the following sequences describes the general life cycle of a eukaryotic organism? a. 1N meiosis 2N fertilization 1N b.
    7·1 answer
  • The ileum contains ________ that project into the lumen and increase the amount of surface area.
    9·2 answers
  • True or false A theory will never be a law and a llaw will never be a theory
    8·1 answer
  • You are about to be sent to a remote area by WHO where you will be working with infectious diseases caused by a variety of micro
    10·1 answer
  • Need before 5pm today
    10·2 answers
  • You wanted to prepare a fish dish for your grandfather that he loves the dried salted Codfish. But
    5·1 answer
  • Are Lima beans living or non living? Please explain your opinion.
    15·1 answer
  • In what way would the lack of receptors for local paracrine signal molecules affect animal cells?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!