Answer:
Method which is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria is control of both RNA splicing and chromatin remodeling.
Explanation:
There is a difference in the gene expression of the prokaryotes and eukaryotes. In prokaryotes, transcription and translation occur simultaneously in the cytoplasm, and gene regulation occurs at the transcriptional level. In eukaryotes gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
Prokaryotic cells can only regulate gene expression by controlling the amount of transcription. As eukaryotic cells evolved, the complexity of the control of gene expression increased. For example, with the evolution of eukaryotic cells came compartmentalization of important cellular components and cellular processes. A nuclear region that contains the DNA was formed. Transcription and translation were physically separated into two different cellular compartments. It therefore became possible to control gene expression by regulating transcription in the nucleus, and also by controlling the RNA levels and protein translation present outside the nucleus.
Answer:
A: stretch receptors in the muscles, tendons and ligaments
Explanation:
Proprioception (or kinesthesia) is defined as any postural, positional information transmitted to the central nervous system by stretch receptors in the muscles, tendons and ligaments, joints or skin. In other words, it is the awareness of the movements produced by our members.
These receptors are found within the somatic nervous system, responsible for the different sensory experiences received and interpreted by our body. The most basic function of receptors is to provide the central nervous system (CNS) with information about the internal conditions of organic structures and the external environment.
Answer:
b. the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it
Explanation:
Both positive and negative feedback have the same components:
1. Stimuli - external or internal
2. Sensors - detect the stimuli
3. Control center - processes the information (CNS)
4. Effectors - activated by control center
Negative feedback loops act to oppose the stimulus.
Unlike negative feedback loops, positive feedback loops amplify the starting signal.
Answer: A and D or 1 and 4
Explanation:
Answer:
A. The ways that the continents fit together
Explanation:
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