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marta [7]
3 years ago
13

_____ describes the life cycle of a star

Biology
2 answers:
LenKa [72]3 years ago
6 0
Stars are formed in clouds of dust and gas (nebulae.) Nuclear reactions at the center (core) of stars gives enough energy to make them shine brightly for many, many years. The exact l<span>ifetime of a star depends on its size.</span>
IgorC [24]3 years ago
4 0

Answer:

Stellar Evolution

Explanation:

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A couple has five children with all blood type a. The mothers blood type is O and the fathers blood type is a
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Answer:

idk

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3 years ago
The sugar and phosphate portion of the nucleotides are found _____ on the DNA twisted ladder.
soldi70 [24.7K]

The sugar and phosphate portion of the nucleotides are found "<em><u>as segments of the rails</u></em>" on the DNA twisted ladder.

3 0
2 years ago
which statement is false about base stacking when nucleic acids are in a double-stranded conformation?
Lilit [14]

The statement that is false about base stacking is; B. Stacking interactions are hydrophilic in nature.

<h3>What is the truth about Base Stacking?</h3>

Base stacking is defined as a common arrangement of nucleobases that are found in the three dimensional structure of nucleic acids. Bases (or base pairs) are planar, and these planes stack at contact distance , excluding water and maximizing Van der Waals interactions.

Looking at the given options, the only one that can be said to be false about the defined base stacking above as regards nucleic acids is option B.

The missing options are;

A. Stacking interactions occur when two or more bases are positioned with their rings parallel to each other.

B. Stacking interactions are hydrophilic in nature.

C. Stacking involves a combination of van der Waals and dipole-dipole interactions between bases.

D. Base stacking helps to minimize contact of the bases with water.

E. Base stacking interactions are important in stabilizing the three-dimensional structure of nucleic acids.

Read more about Base Stacking at; brainly.com/question/19670398

#SPJ11

6 0
2 years ago
How is chemosynthesis different from photosynthesis?
Mumz [18]

Answer: Photosynthesis and chemosynthesis are both processes by which organisms produce food; photosynthesis is powered by sunlight while chemosynthesis runs on chemical energy.

Explanation:

3 0
3 years ago
Read 2 more answers
5. The scientific term for chewing food is
Shtirlitz [24]

Answer:

c. mastication

Explanation:

The scientific term for chewing food is mastication.

Mastication is the mechanical grinding of food into tiny pieces by the teeth. Mastication is essentially the scientific term for “chewing”

7 0
3 years ago
Read 2 more answers
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