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Reptile [31]
3 years ago
5

Dichotomous keys ask​

Biology
1 answer:
raketka [301]3 years ago
7 0

Dichotomous key ask what?

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Study the diagram. A student on Earth's surface at position A has just seen the sunrise. Which one
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Answer:

B

The second student has not yet seen the same sunrise.

Explanation:

Because as the day goes on, the sunlight shines on places without light as the earth is rotating.

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Use the terms phenotype and genotype in a <br> complete sentence.
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Answer:

Genotype" is an organism's full hereditary info. and "Phenotype" is an organism's actual observed properties, such as development, or behavior.

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which is needed for one nerve to communicate with another nerve across a synapse? electrical signals nodes of ranvier neurotrans
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Our interconnected neurons help us process different types of information. Synapses are the gaps between neurons. <span>When an impulse reaches the end of one axon, it is now an action potential. This electric signal cannot leap across this gap so as to speak. Special chemicals called neurotransmitters have this role to be possible. The best answer is thus neurotransmitters. </span>
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Do you think that all pollen germinates indiscriminately on all stigmas?
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Pollen tube growth is one of the most fascinating—and essential—phenomena in the life cycle of flowering plants. After a compatible interaction between pollen grains and the stigma surface, the pollen germinates and forms the pollen tube, which grows through the stigma, style, and transmitting tract to deliver the sperm cells to the ovule." 
2) Although pollens of many species germinate in simple aqueous media, stigmas do not provide satisfactory sites for the germination of most foreign pollen... Stigmas not only provide the proper conditions for the germination of pollen from their particular species, they actively inhibit the germination of pollen of many unrelated species.
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3 years ago
Biologists focus on heredity in human development, whereas sociologists focus on learning, socialization, and culture. This diff
Aleks04 [339]

Answers

Nature  vs Nurture debate.

Explanation:

Development in human is inborn.The stages of development is dictated and directed by expression of genes encoded by the DNA.Therefore physiological and biochemical interpretations of these DNA dictates is known as human development. it is a fixed mechanisms  which is fastest  at childhood,and progressively slower at advanced stage.<u>Although environmental factors may influence  this developmental stages, the exact mechanism of occurrence is constant and fixed.</u>

<u />

Nuture concept believe that, human development is as a result  of societal  and cultural factors in the environment, and the progression of the development is due to the influences of theses factors  on human perception of life. Thus Human development is  acquired through life exposure and experiences.They are therefore  dynamic, and not static,  but fluctuates based on level of exposure  in the environment.

<u>However, both concept interacts with one another to ensure an holistic human development. Generally it is the interaction of the environment with genetic that explains the concept of natural selection and evolution of human race.  </u>

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