Biology, 04.08.2019 20:30 deannajd03

Describe how various scientists have contributed to our current understanding how life began

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Abiogenesis theory:
--》Aristoteles

Biogenesis theory :any process by which lifeforms produce other lifeforms.

--》Francesco Redi
--》Louis Pasteur (confirmer of Redi's theory)

Panspermia theory: Life comes from the other planets.

--》Anaksagoras (created this theory first)
--》Lord Kelvin
--》Svante Arrhenius
--》Francis Crick

Heterotroph theory :
--》Wöhler
--》Miller
--》 Fox

Evolution Theory:
--》Darwin
--》Bacon
--》Descartes
--》Leibnitz
--》Lamark
--》Georges Buffon (creator of the Evolution theory in modern science)

In addition;

Alexander Graham Cairns-Smith = Organic chemist = Origin of life

Hope it helps!
#MissionExam001

Answer from: Quest

q: compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city,

comparing this to the inside of a food building/company.

plasma membrane - building's walls

all cells are surrounded by a plasma membrane, which protects the cell from its environment, keeping toxic substances out of the cell. it regulates which molecules are allowed to enter and exit the cell.

nucleus - the big boss

regulates all cell activity such as cellular metabolism, and growth in addition to storing and maintaining the cell's dna for transcription and replication. determines what proteins to make.

cytoplasm - working areas

contains the organelles; site of most cell activity

endoplasmic reticulum - engineer's work area

the place where ribosomes do their working activity.

ribosomes - engineers

builds the proteins.

golgi apparatus - pickup truck drivers

prepares proteins for use or export.

lysosomes - investigators

responsible for breaking down and absorbing materials taken in by the cell.

cytoskeleton - renovators

maintains cell shape.

mitochondria/chloroplasts - materials scientist

transforms one form of energy into another.

Answer from: Quest

one centimetre is equal to 0.01 metres

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