How does sensation influence our behaviours in the environment

1 answer:

5 0

Humans are blessed with five sensory organs such as eyes, ears, nose, tongue and skin which are influenced by the change in the environment.
Sensation refers to sensing the outer environment with the help of the sensory organs in the form of touch, smell, sound, taste and sight. According to the environmental conditions, the sensory organs act and send the message to the brain which is then interpreted. For example, change in the environmental temperature such as hot or cold is sensed by the skin and interpreted by the brain.

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Amoeba

Explanation:

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The ABO blood groups in humans are expressed as the I A , I B , and i alleles. The I A allele encodes the A blood group antigen,

Fynjy0 [20]

Answer:

d. multiple alleles and codominance

Explanation:

ABO blood group is controlled by three alleles instead of the usual two. Hence, it is an example of multiple alleles. These three alleles are IA, IB and i. IAIA genotype leads to production of A antigen hence A blood group. IBIB genotype leads to production of B antigen hence B blood group. When they are present together (IAIB) both A and B antigens are produced resulting in AB blood group. Hence ABO blood group is also an example of codominance.

Both IA and IB are dominant over the i allele. So IAi and IBi will produce A and B blood group respectively. ii genotype leads to O genotype.

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How are homeostasis and cellular respiration mutually dependent on one another?

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Cellular respiration describes the process of oxygen and glucose and converting into water and carbon dioxide. Homeostasis is a term which refers to biological processes in which living things must maintain stable and equal conditions for survival. Cellular respiration which uses oxygen and glucose must be able to sustain life by releasing energy which is called ATP, the ATP which is produced enables many biological processes that keeps organisms alive. Cells need energy to grow, move, and function. The process of homeostasis enables cellular respiration to produce enough molecules which can sustain the development of the cell. Without homeostasis cellular respiration would cease to function and without cellular respiration the process of homeostasis would not occur. Homeostasis regulates how much molecules have to be expended in order to produce energy for the process of cellular respiration.

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Complete the following sentences to indicate which gene expression components are found in virus particles. Click on a term and

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Answer:

RNA polymerase is always present in the cell, but sometimes present in viruses.
tRNA is always present in the cell but never present in viruses.
Ribosomes are always present in a cell but never present in viruses.
Genes are always present in the cell, but always present in viruses.

Explanation:

Viruses are acellular microorganisms that do not have a biochemical or gene expression of their own. They hijack the host's gene expression system.
RNA polymerase is the enzymes that forms RNA primers during DNA replication and the mRNA transcript of template DNA during transcription. Therefore, RNA polymerase is always required in cells.
Most viruses lack RNA polymerase except some RNA viruses such as polio viruses that contain an RNA dependent RNA polymerase, an enzyme that synthesizes mRNA from an RNA template.
Viruses lack tRNA and ribosomes as they are not capable of translation on their own.
Unlike the gene expression machinery, all organisms including viruses have a genome. Viruses can have both DNA and RNA genomes.

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