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nata0808 [166]
3 years ago
5

PLEEEASE I NEED HELP!! ASAP

Biology
2 answers:
Helga [31]3 years ago
5 0

The correct answer is option C

During 18th century the people used to think that the planets used to move backward in the sky and this is known as the Apparent retrograde motion.

The planets of the solar system appeared to be moving in backward direction.

At that time it was not explained properly that it seems to moving backward but actually it is not. Planets move around their respective orbits only.

Nutka1998 [239]3 years ago
3 0

The planets appeared to move backward in the sky occasionally.

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Identify one substance, other than the secretions from nerve cells, used in cell communication.
Verdich [7]
One substance, other than the secretions from nerve cells, that is used in cell communication are hormones.  
<span>
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3 years ago
Cheamical structure or formula for photosynthesis
tatyana61 [14]

Answer:

6CO2 + 6H2O + light → C6H12O6 + 6O2

Explanation:

Photosynthesis can be represented using a chemical equation.

The overall balanced equation is...

6CO2 + 6H2O ------> C6H12O6 + 6O2

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hope this helps

good lucky

no problem

8 0
3 years ago
Adaptation:
Helga [31]

Answer:

Mutation is yes a harmful

Explanation:

3 0
3 years ago
Which of these processes is most important for a person to replace worn-out body cells?
yulyashka [42]

Answer:

Mitosis

Explanation:

Mitosis produces new cells, and replaces cells that are old, lost or damaged for a person's body cells.

4 0
3 years ago
Bacterial species have evolved over millions of years to fill almost every available environmental niche on this planet. Despite
AVprozaik [17]

Answer:

1. Glucose breaks down into two pyruvates. CATABOLIC

2. Ammonia is added to glutamate to form glutamine. Anabolic

3. Four amino acids join to form tetrapeptides. Anabolic

4. A uracil base is added to an mRNA strand by RNA polymerase. Anabolic

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6. Ribose and inorganic phosphate join together to form a nucleotide base. Anabolic

Explanation:

Chemical reactions are classified as anabolic and catabolic depending on whether they form or disintegrate structures, yielding energy to the medium or taking energy from the medium.

Anabolic reactions are those that take energy from the environment and therefore synthesize very complex molecules, of various bonds such as glycogen, starch, among other polysaccharides.

On the other hand, catabolism leads to the destruction of the unions of a chemical product, that is why they have greater entropy and is thus the greatest disorder.

Catabolism releases energy to the environment, it releases it.

For an anabolic reaction to happen, there must be a catabolic one, since it takes the energy released by catabolism, and for a catabolism to happen, an anabolism must first have arisen, that is, the formation of a molecule or particle that is dissociates.

8 0
3 years ago
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