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zhuklara [117]
3 years ago
6

The oldest known fossils Group of answer choices all of the choices. are microscopic. are that of prokaryotes. date back 2.5 bil

lion years ago.
Biology
2 answers:
agasfer [191]3 years ago
8 0

Answer:

Cyanobacteria from Archaean rocks of western Australia, dated 3.5 billion years old. Cyanobacteria are among the easiest microfossils to recognize

Explanation:

Sauron [17]3 years ago
8 0
What exactly is the question
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Based on respiratory function tests, the correct options are:

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<h3>What is a respiratory function tests?</h3>

A respiratory function test is a test done to evaluate the ability of the lungs to take in air and remove carbon dioxide

The machine used for this test is called a spirometer.

Therefore;

  • Ms. L's respiratory function was evaluate using a machine called a spirometer.
  • The amount of air that can be expelled by maximum ex-halation after maximum inhalation is termed the vital capacity
  • An increase in the amount of air remaining in her lungs after a normal expiration is called the residual volume.

Learn more about respiratory function test at: brainly.com/question/18117969

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3 0
2 years ago
20 minutes of moderate cardiovascular exercise releases bdnf. <br> a. True <br> b. False
Sauron [17]
The answer is true letter a
7 0
3 years ago
Animal cell: when removed, the cell is unable to divide.<br>I need this ASK please​
Soloha48 [4]
Option D centrioles helps cells to divide.
7 0
2 years ago
This type of reproduction produces variety in species.
ruslelena [56]
Sexual Reproductions (i.e. Meiosis)


In Meiosis you have a crossing over stage in prophase I, which will result in the exchange of genetic material + the random assortment at metaphase 1 and 2 increases the variety.

There is approximately 10 billion different ways that a child can look from a mixture of the paternal and maternal genes due to all the random events that happen in meiosis/ sexual reproduction.
4 0
3 years ago
The nucleus is located in the center of the atom.<br> O True<br> O False
Helen [10]

Answer:

the answer is true

Explanation:

hope it helped

7 0
2 years ago
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