Evolution of Living Organisms

​Evolutionary Theory

While you are waiting. What do you see? Explain Can you relate the image to evolution? How?

Poll

Did humans evolve from primates?

• Yes, there is evidence that supports this claim.

• No, I do not believe humans evolved from primates.

• Maybe, humans did evolve from primates.

In your own words, use the images to explain the endosymbiotic theory, step by step.

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Namste Tanya Williams

" A smart person is not smart. They are wise. That means they understand how to use their strengths and maximize their weaknesses. Yes, we all have weaknesses, but the difference is what we do with them.

​Task 1: Work together in your study bear groups to organize the timeline correctly. (11) minutes

Poll

The study of science teaches us with evidence that the smallest basic unit of living organisms is the cell. They would say that the cell is the basic component of life that provides function for life. At first this life was simple just ordinary, but as we all know ordinary things need to become better, more self sufficient. This image examines the steps to that better (evolvment), or was there something greater? How do you feel about the subject?

• Yes

• No

• Grey area

• No comment

Evolution of Cells

anerobic cell

The belief is that some ____________ cells

​evolved into an

______________ to make their own food.

​therefore, some bacteria cells, evolved from anerobic to ___________.

Endosymbiotic Theory

According to endosymbiotic theory, an aerobic eukaryote may have engulfed a photosynthetic bacterium, such as a cyanobacterium, to form another symbiotic relationship. The photosynthetic bacterium would eventually evolve in chloroplast, possessing its own DNA. This new photosynthetic (autotrophic), eukaryotic cell would be an ancestor plant cells and autotrophic protists cells.

Multiple Choice

How are bacteria and mitochondria similar?

• They both have membrane-bound organelles

• They both contain chloroplast.

• They both contain DNA but have no other membrane-bound organelles.

• Both are anaerobic but can be either autotrophic or heerotrophic

Multiple Choice

Which of the following is an accurate definition of the theory of evolution?

• gradual changes in organisms over time create new types of organisms

• life is continually created from nonliving material

• the diversity of life cannot be explained by descent from a common ancestor

• geological processes are responsible for the origin of life.

Multiple Choice

According to the theory of endosymbiosis, how did plant cells evolve?

• An anerobic cell engulfed a chloroplast

• an aerobic, eukaryotic cell engulfed a photosynthetic bacterium

• an anaerobic cell engulfed a small aerobic bacterium

• an aerobic bacterium engulfed an anaerobic bacterium

Evolution of Cells

anerobic cell

The belief is that some ____________ cells

​evolved into an

______________ to make their own food.

​therefore, some bacteria cells, evolved from anerobic to ___________.

Multiple Choice

In 1953, Harold Urey and Stanley Miller performed a landmark experiment intended to mimic the primordial conditions.  Electric sparks (simulating lightning) were passed through a chemical solution of methane, ammonia, hydrogen, and water, which resulted in the formation of ________, the building blocks of life. The answer is amino acids. Select the correlating box of learning.

• chemical (nonliving) evolution

• organic (living) evolution

Multiple Select

Select the two statements, that defend evidence of chemical (nonliving) evolution.

• results in change to a species

• occurs as a result of changes to a molecular structure, large compounds that are broken down into simpler ones

• the first type of evolution that occurred

• involves cellular changes, and to RNA to DNA

Multiple Select

Select the statements, that defend evidence of organic (living) evolution.

• happens over a long period of time

• involves cellular changes, and changes to RNA and DNA

• results in changes to species

• occurs as a result of changes to molecular structure, large compounds broken down simpler ones

Poll

Do you agree that evolution is a common factor of the living (organic) and nonliving (chemical) or is or was there a higher underlying phenomenon that cannot be explained, only gifted?

• Agree

  (Organic and Chemical)

• Disagree

  (his hand)

• No comment

• Gray Matters