The sense organs contain receptors that are sensitive to stimuli.
The nervous system consists of the central nervous system - brain and spinal cord -and peripheral nerves. Nerve impulses travel through the axons of neurones - nerve cells. Reflex actions are fast, automatic and protective responses.
Human vision is binocular, which gives us a good perception of depth. Vision defects include short-sightedness, long-sightedness and colour blindness.
b. modern bacteria
c. archaebacteria
d. fungi
Answer:
c. Archaebacteria are the oldest fossil forms
Explanation:
According to the Six Kingdom Classification of Living Organisms, Archaebacteria includes the earliest organisms to have appeared on the earth's surface living under harshest of conditions. These were unicellular organisms that used chemical energy to synthesize life sustaining molecules(chemoheterotrophs).
As the temperature, pressure and environment became more conducive to live slowly they evolved into modern bacteria, and subsequently higher-ordered multicellular organisms. Fungi, Plant and Animals later evolved as the organization became more and more complex.
Therefore in chronological order the oldest fossils are Archaebacteria>modern bacteria>fungi>animals
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a. keeping the amount of DNA in the cell at a
minimum level
b. preventing the nucleus from becoming
larger with each cell division
maintaining the chromosome number
during sexual reproduction
d. allowing the growth of the cell without
increasing the DNA content
C.
Answer:
the answer is d. allowing the growth...... this is because if the cell doesnt stop growing it becomes cancerous
Which statement best describes the process of respiration?
Answer:
Cellular respiration.
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cheaper to use oil
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