BIOLOGY HIGH SCHOOL

A concept that there is a specific time in an organism's development during which external factors have a unique and irreversible impact is: A. ethology
B. equifinality
C. critical period
D. zone of proximal development

Answers

Answer 1
Answer:

Answer:

critical period

Explanation:

  • During the lifespan of an organism, there is a developmental stage during which the environmental stimuli have the greatest impact on the nervous system and hence, the external factors have an irreversible impact on the organism's development. This is termed as the critical period.
  • During the critical period a person develops several essential life skills such as vision, first language, hearing, etc. and a failure to receive the external factors during this critical period, may make it nearly impossible to learn those life skills at a later stage.
  • The critical period usually begins during the prenatal stage and continues until adolescence whereas closes at around adulthood.
  • During the critical period, the cellular events, as well as sensory experiences, need to coincide to function successfully and generate an impact.

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Blood flow is affected by both blood pressure and vessel resistance. a. True b. False
Is oxygen a product or a reactant of photosynthesis?
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Energy is always required to force molecules to move from areas of high concentration to areas of low concentration?true or false

Answers

This statement is false. Energy is definitely not 'always' required to force molecules to move from areas of high concentration to areas of low concentration. Energy is a property of objects in which produced and converted, that can be very useful to everyone's life.

Select the best answerWhich of the following events define the Proterozoic eon?

-eukaryotic cells first seen
-stable continents
-first bacterial fossils
-Cambrian explosion
-oxygen builds up in atmosphere

Answers

proterozoic eon - oxygen builds up in atmosphere. 

Eukaryotic cells first seen

oxygen build up

stable continents

Valence is the number of electrons an atom must gain or lose in order to _____ its outer energy level or have a stable octet in its outer shell.complete
lose
gain

Answers

The correct answer is complete.

Valence is the number of electrons an atom must gain or lose in order to complete its outer energy level or have a stable octet in its outer shell. In the first energy level it can have only 2, but later levels can have 8, that is, an octet.

Answer;

Complete

Valence is the number of electrons an atom must gain or lose in order to complete its outer energy level or have a stable octet in its outer shell.

Explanation;

-Valency is the number of electrons that an atom requires to gain or lose to form a complete configuration or an octet configuration.

-Atoms tend to lose or get electrons in order to achieve the electronic arrangement of atoms of the noble gases. An ion is an atom or group of atoms having an overall electrical charge. Atoms gain electrons to form cations (positively charged atom), while other lose to form anions (negatively charged atoms).

Taste buds are located in and around papillae, the tiny bumps on the tongue. TRUE OR FALSE?

Answers

True Hope this helps

Answer:

true

Explanation:

The human body uses specialized biomolecules to speed up chemical reactions. These are called enzymes. Without enzymes, the reaction in the body would happen too slowly to keep you alive. Which biomolecule do enzymes belong to?
A. Proteins
B. Lipids
C. Nucleic acids
D. Carbohydrates ​

Answers

Final answer:

Enzymes are biomolecules that belong to proteins. They are vital for speeding up chemical reactions in the human body to ensure healthy living.

Explanation:

Enzymes are specialized biomolecules that play a fundamental role in the human body, primarily by speeding up chemical reactions critical for life. These biomolecules belong to the category of Proteins. This is because enzymes are composed of sequences of amino acids, which are the building blocks of proteins.

Unlike lipids, nucleic acids, and carbohydrates, proteins possess the unique ability to function as biological catalysts, reducing the amount of energy required for a reaction and thereby accelerating its rate.

Learn more about Enzymes here:

brainly.com/question/31561117

#SPJ6

Answer:

A

Explanation:

Enzymes are proteins.

WORD BANK HELPword bank: crossbreed , varieties , characteristics , artificial selection , domesticated





Selective breeding ( also called {blank }) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotype traits (blank) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. (blank) animals are known as breeds , normally bred by a professional breeder , while domesticated plants are known as (blank) , cultigens , or cultivars. Two purebred animals of different breeds produce a (blank). Flowers , vegetables and fruit-trees may be bred by amateurs and commercial or no-commercial professionals: major crops are usually the provenance of the professinonals.

Answers

Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. (Domesticated) animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as (varieties), cultigens, or cultivars. Two purebred animals of different breeds produce a (crossbreed). Flowers, vegetables and fruit-trees may be bred by amateurs and commercial or non-commercial professionals: major crops are usually the provenance of the professionals.

Answer Key

Selective breeding also called (artificial selection.) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics.) by choosing which typically animal or plant males and females will _exually reproduce and have offspring together. (Domesticated.) animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as (varieties.) , cultigens, or cultivars. Two purebred animals of different breeds produce a (crossbreed.) . Flowers, vegetables and fruit-trees may be bred by amateurs and commercial or non-commercial professionals: major crops are usually the provenance of the professionals.
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