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maw [93]
2 years ago
7

HELPPP UGENT!!

Biology
2 answers:
AveGali [126]2 years ago
6 0

Answer:

A

Explanation:

Chloroplast are only found in plant cells

Fofino [41]2 years ago
6 0

Answer:

chloroplasts

Explanation:

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The red shifts of quasars and connected galaxies can be different by billions of light-years.
lara [203]

Answer: True

Explanation:

Its true.

Hope it helped you.

4 0
3 years ago
because ideas about evolution by natural selection have never been proven false what term can be used to describe evolution by n
Tanya [424]
The term that can be used to describe evolution by natural selection is SCIENTIFIC THEORY.

Theory means "the best explanation so far."

Scientific theory is a work in progress. It is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method, and repeatedly confirmed through observation and experimentation.
8 0
3 years ago
Primary features of a long bone. Which of the following correctly pairs the structure at C with its primary component?
OlgaM077 [116]

Answer:

periosteum ----> dense irregular connective tissue

Explanation:

  • The periosteum is a dense fibrous membrane that covers the surfaces of bones.

The periosteum consists of two layers-

    1. Outer fibrous layer

    2. Inner cellular layer

  • It is mainly composed of dense irregular connective tissue along with a layer of simple squamous epithelium.
  • The function of periosteum is to cover the surface of all the bones except those surfaces that are covered with cartilage such as joints and tendons and ligaments.
4 0
3 years ago
DNA and RNA are both composed of nucleotides. However, RNA has three key differences. Please select the
svlad2 [7]

Answer:

Three items that are unique to RNA are as follows:

2. Single-stranded.

3. Contains the nitrogen base Uracil in place of Thymine.

4. Backbone contains the sugar ribose.

Explanation:

8 0
1 year ago
A metabolic pathway must provide the desired chemical (metabolite) at the rate required for cellular and tissue function. to acc
Galina-37 [17]

Answer;

"couples" energetically unfavorable reactions to ATP condensation in order to drive the reaction toward the required product.

Explanation;

-Metabolic pathways are designed to synthesize necessary cellular reagents as required for cellular and tissue function. To accomplish this, the reaction sequence includes both reactions that are essentially irreversible and reactions that are freely reversible (near equilibrium).

-In most cases, cells use a strategy called reaction coupling, in which an energetically favorable reaction (like ATP hydrolysis) is directly linked with an energetically unfavorable (endergonic) reaction.


8 0
3 years ago
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