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mihalych1998 [28]
2 years ago
8

Each species of yucca plant is pollinated exclusively by one

Biology
1 answer:
Olegator [25]2 years ago
6 0

Answer:

Relationship between Yucca plant and Yucca moth is OBLIGATE MUTUALISM.

Explanation:

Obligate mutualism- The mutual relationship between two partners where both partners are benefited by each other and can not survive without each other.

In case of Yucca plant and Yucca moth,they cannot survive without each other.Yucca moth larvae feed on seeds of Yucca plant and Yucca plant have a single pollinator i;e, Yucca moth. Yucca moth collects pollen from anther and fly to another flower and transfer that pollen to other flowers stigma. In this way they transfer the pollen , usually they make a hole in the ovary to lay eggs and directly transfer pollen to the inside of the stigma.

After laying eggs they mark it with some special kind of pheromone which alerts other moths not to lay egg inside the same flower or lay some eggs not much. So that they can be protected inside the flower and can be developed well.

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Answer:

Human activities cause the emission of halogen source gases that contain chlorine and bromine atoms. These emissions into the atmosphere ultimately lead to stratospheric ozone depletion.

Explanation:

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Answer:

The correct answer would be D.Alveolar sacs are surrounded by thin capillaries where gases can be exchanged.

Alveoli are tiny sacs which form the site of gas exchange in the lungs.

The features of alveoli which help in gas exchange are:

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3 years ago
Describe the plate motions along the Himalayan Mountains. Do you think these mountains are getting larger, smaller, or staying t
artcher [175]
<h2>Himalayas </h2>

Explanation:

  • Once, all the world’s landmass was connected, forming one super-continent known as Pangea
  • About 200 million years ago, tectonic forces broke apart this giant continent into pieces, eventually forming the continents that are known today
  • As convection currents worked independently on the plates associated with these new continental pieces, the plates and their respective continents began to drift across the globe to their present-day geographical locations
  • Eighty million years ago, India was approximately 6400 km south of the Eurasian plate, separating the two was the Tethys Sea
  • The Indo-Australian tectonic plate – containing the continent of Australia, the Indian subcontinent, and surrounding ocean – was pushed northward by the convection currents generated in the inner mantle
  • For millions of years, India made its way across the sea toward the Eurasian plate
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  • The Tethys Sea disappeared completely around 20 million years ago and sediments rising from its seabed formed a mountain range
  • When India and Tibet collided, instead of descending with the plate, the relatively light sedimentary and metamorphic rock that makes up the subcontinent of India pushed against Tibet, forcing it upwards, and created a massive mountain fold, The Himalayas
  • This process hasn’t stopped, the Indo-Australian plate is still moving toward Eurasia, still pushing Tibet upwards
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Answer:

A - DNA

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Explanation:

<em>The entire structure illustrates the process of transcription and translation in a typical eukaryotic cell.</em>

The DNA (A) in the nucleus of the cell is first transcribed to mRNA (B). The mRNA produced is transported to the cytoplasm through the openings within the nuclear membrane - the nuclear pores (C). On getting to the cytoplasm, the mRNA binds to the ribosome (E) (carrying rRNA, F). The tRNA (D) carrying the specific anticodon for a particular codon on the mRNA then binds to the structure and the corresponding amino acid is released. A polypeptide bond is formed between subsequent amino acids and the ribosome moves along the mRNA chain until the translation process is complete.

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