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Crazy boy [7]
2 years ago
15

Approximately 3.85 billion years ago, a group of single-celled microorganisms known as __________ were alive, reproducing, and e

volving.
Biology
1 answer:
seraphim [82]2 years ago
7 0

Microbes.  — cells that have a nucleus, like an amoeba or a paramecium

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if you selected the correct answer above, this means that you realized that natural selection is at play here. identify the four
Bond [772]

Answer:

Explanation:

•Variation: Organism shows variation within a population, these variation could be body size, facial marks, hair color, number of offspring, etc. Also some features shows little or no variation, for example the number of eyes a vertebrate have, etc

•Inheritance: Certain traits are always passed from parents to their offsprings, these traits are called HERITABLE TRAITS. But traits that are exhibited as a result of an environment are termed weak heritable traits.

•High rate of population growth: When the number of offsprings produced in a year is greater than the resources within an environment, such population will experience high rate of mortality.

•Differential Survival and reproduction: The ability possessed by an individual to struggle for survival within it's environment will give rise to more offspring in the next generation.

7 0
3 years ago
건초 여러분! <br>의학계열에서 온 사람 있어?​
olchik [2.2K]

Answer:

아니 난 아니야

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7 0
2 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
Gomez found the masses of three rocks for science project .the first rock had a mess of 19.28 grams, the second rock had a mass
ziro4ka [17]
The combined mass of rock 1 and 2 = 19.28 + 25.3
= 44.58

Difference between rock 3 and combined rocks 
= 46.3 - 44.58
= 1.72 grams

therefore, the third rock was 1.72 grams greater than the combined mass of the other two rocks. 
3 0
3 years ago
Please help i’ll give the brainliest if you give a correct answer tysm
Eduardwww [97]

Answer:

C. how close earth is to the sun

5 0
3 years ago
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