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SpyIntel [72]
3 years ago
6

Can someone help me on this please?

Biology
1 answer:
lorasvet [3.4K]3 years ago
5 0
Answer: precambrian
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What is the point at which a DNA strand is unzipped so that it can form a nem complementry strands
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3 years ago
How do body systems work together to maintain homeostasis
Novosadov [1.4K]

Answer: By Hormonal action and Nervous coordination

Explanation:

Hormones are substances produced by one tissue and conveyed by the bloodstream to another to effect physiological activity. Homeostasis is the maintenance of a stable internal environment in the body.

Body systems such as digestive, circulatory, excretory systems etc, all are coordinated to achieve a STABLE INTERNAL ENVIRONMENT by the aid of HORMONES AND/OR NERVOUS COORDINATION.

For Example: the vasodilation of blood vessels during hot weather, and the opposite action of vasoconstriction during cold weather are both controlled by Hormonal action and nervous coordination which leads to a stable body temperature preventing excess heat accumulation.

Also, Nervous system controls the body systems, such that the muscle contractions are joined to actions like sweating, breathing, respiration etc

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4 0
3 years ago
Which statement accurately describes the relationship between cytokinesis and mitosis?
miv72 [106K]
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3 years ago
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Is a type of disease caused by a single factor or has single cause​
ludmilkaskok [199]

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HIV/AIDS

HIV is a disease in the blood

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7 0
1 year ago
What are the factors that contributed to the success of pteridophyte as land plant
Anna35 [415]

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Pteridophytes are a group of plants that peaked in the Carboniferous (-300 million years). It is the first great terrestrial plant civilization. These plants would have appeared in the Devonian -400 million years ago, perhaps from certain primitive terrestrial plants which, unlike bryophytes, would have favored the diploid generation on the haploid generation.

Particularly well adapted to terrestrial life, they have created, thanks to the development of tree forms, immense forests whose fossilization is at the origin of coal deposits.

Pteridophytes are at the origin of an evolutionary lineage based on the extreme miniaturization of gametophytic generation and an important development of sporophytic generation, leading to all tracheophytes including current flowering plants. Pteridophytes are well adapted to terrestrial life, however fertilization still requires the presence of water since male gametes are swimmers.

8 0
3 years ago
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