A researcher collected archaea and protists from a thermal vent. how do the cells of these two organisms differ?

1 answer:

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Archae represent a kingdom of bacteria which live in extreme environments. Archae bacteria are prokaryotic cells, meaning they do not have a membrane bound nucleus nor membrane bound organelles. Prokaryotes have ribosomes and circular DNA. They may have smaller rings of DNA called plasmids. Protists represent a eukaryotic kingdom. Eukaryotic cells have a membrane bound nucleus and membrane bound organelles. The DNA is not free floating, it is enclosed in the nucleus and arranged in chromosomes. Archae cells are much smaller than protist cells. Protist cells can be found as unicellular organisms,, living in colonies or multicellular. Archea are unicellular and may b e in clumps or chains.

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Urban development increases demand for _________, especially after large storms or floods. Many islands are formed from underwat

Bezzdna [24]

Answer:

1. seawalls

2. volcanic

3. mass wasting

4. ocean basin

5. erosion

Explanation:

6. Reefs form from volcanic activity on an island in the ocean. This initially forms a fringing reef, but sea level rise can cause the reef to lie farther out from the island, forming a barrier reef. If the island ever subsides below sea level, the reef is called an atoll.

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3 years ago

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Identify the neurons described

rosijanka [135]

Answer:

Motor neurons send messages to the muscles and glands to respond to stimuli.

Sensory neurons move information towards the central nervous system for processing.

Interneurons carry information from one type of neuron to another.

Explanation:

Neurons are basic structural and functional units of Nervous system.
Neurons possess electrical excitability, the ability to respond to a stimulus and convert it into a action potential.
Neurons can be classified on the basis of their structure and function.
On the basis of structure neurons are classified as, Multipolar neuron;Bipolar neuron; Unipolar neuron.
On the basis of function neurons are classified as, Afferent or sensory neuron; Efferent or motor neurons; Interneurons or association neurons.