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disa [49]
3 years ago
14

Name 5 major events occured during the precambrian era?

Biology
1 answer:
Gelneren [198K]3 years ago
7 0
1) <span>the solar system and light formed.
2) </span> Earth<span>'s formation, approximately 4,5 billion years ago.
3) </span>the creation of the atmosphere through volcanic out gassing; <span>Earth's primitive atmosphere made a transition to an </span>oxygen<span> rich atmosphere.
4) </span>formation of landmass and oceans.
5) the creation of life; <span> there is evidence of the earliest appearance of eukaryotes.</span>
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According to Darwin’s On the Origin of Species, what four factors affect evolution? Explain how each factor affects evolution.
Kryger [21]

The 4 factors affect evolution, according to Darwin’s Origin of Species are;

Variation

Heritability

Competition

Differential survival

Variation ensures that there is variability of population traits on which selection pressures will apply.

Heritability means that the traits must be able to be passed down to offsprings through gametes.

Competition occurs when the individuals in the population compete for limited resources

Differential survival occurs due to competition for resources and other selection pressures. This result to the survival of the strongest and weeding out of the weak from the population.






4 0
3 years ago
Please select the word from the list that best fits the definition The set of cultural characteristics that distinguishes one gr
Ierofanga [76]

Answer:

Ethnicity

Explanation:

<em>The correct answer would be </em><em>ethnicity</em><em>.</em>

<u>By definition, ethnicity refers to the variety of physical and behavioral characteristics that distinguishes one group of people from another group of people. </u>

Individuals or a group of people that shares the same culture and a sense of identity would belong to the same ethnic group while those with dissimilar culture and physical identity would be in different ethnic group.

4 0
3 years ago
Describe the difference between a cladogram and a phylogenetic
Genrish500 [490]

Cladograms are concerned with the way organisms are related to common ancestors through shared characteristics. Phylogenetic trees compare organisms over evolutionary time and the amount of change that has occurred over time to figure out the relationships.

7 0
3 years ago
Which of the following is the best example of homeostasis? *
erik [133]

Answer:

A

Explanation:

Homeostasis' main job is to keep your body balanced, typically with variable factors such as temperature or enzyme amounts. Your heart rate increases to keep your blood pressure steady while you exercise. This way, you can have a relatively balanced blood pressure as you exhilarate yourself.

8 0
2 years ago
Place the following molecules in order starting from the smallest
makvit [3.9K]
I think it would be (from smallest to biggest) this info is from various sources and scientific PDFs
1Glucose=1nanometer
2Protein=10nanometer
3Disaccharides= 200+nanometer
4Starch=1000+nanometer
4 0
3 years ago
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