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aivan3 [116]
3 years ago
6

Ions form when _____________

Biology
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

One atom gives up an electron to another atom.

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Multicellular gametophytes are the product of spores from ____​
jolli1 [7]

Answer:

In bryophytes, the sporophyte is minute and dependent on the relatively prominent and nutritionally independent gametophyte for resources. The moss gametophyte looks like a miniature herb, with tiny leaf-like photosynthetic organs. The gametophyte generation begins as a dormant spore, which germinates under appropriate conditions to produce filamentous and branching protonemal tissues. These form multicellular bud-like structures, each of which develops into a leafy shoot. The mature gametophytes produce male and female sexual organs, the antheridia and archegonia, respectively. The gametophyte is often sexually distinct, and plants are either male or female.

Each antheridium has an outer layer that encloses and protects thousands of motile sperm, which swim through available external water layer to the egg. Fertilization at the base of the cylindrical archegonium produces a diploid zygote which develops into an unbranched sporophyte. The sporophyte consists of a thin stalk attached to the gametophyte, and a capsule that encloses the sporophytic meiotic cells.

In recent years, the mosses Physcomitrella patens and Funaria hygrometrica have emerged as attractive model systems for studying gene function in non-vascular plants because of the relative ease of molecular manipulation by homologous recombination. Mutants affecting gametophyte development have been isolated and their analysis should provide insights into the molecular basis of gametophyte development in mosses.

Explanation:

7 0
2 years ago
In 2010, an area in the Gulf of Mexico was the site of the worst oil spill in United States history. The Deepwater Horizon oil r
iren2701 [21]
Answer: c) biologists would track the number of species and their relative abundance in the gulf coast region in 2009, 2010, and 2011
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3 years ago
Which statement below best summarizes the
monitta

Answer:

D. Clear-cutting would increase the amount of carbon dioxide found in the atmosphere

Explanation:

Plants including trees are organisms that help maintain the balance of carbon in the carbon cycle. They do this via the process of PHOTOSYNTHESIS, which is the way they obtain their energy and carbon source. During photosynthesis, trees (plants) absorb carbon in form of atmospheric carbon dioxide (CO2) from the air through the STOMATA on their leaves.

CO2 is an input substance in order for photosynthesis to occur. In a case where all the trees (plants) of a forest has been clear cut or removed, there will be no organisms to directly absorb the carbon dioxide (CO2) released into the atmosphere via respiration. Hence, the amount of carbon dioxide found in the atmosphere would increase.

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3 years ago
Zachary is a 17-year-old male who appears boastful, conceited, and arrogant. when someone accuses him of being that way, he flie
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The diagnose for Zacahry would be Narcissistic Personality Disorder (NPD).  This type of disorder is characterized also with the following behaviors:  the person shows little care for others and is often envious when others are recognized for their achievements. Persons with this type of disorder are also prone to daydreaming and fantasizing about the success that <span>awaits him</span>
8 0
3 years ago
What kind of waves is present during an earthquake?
jeka94

Answer: :v

Explanation::v tsunami

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3 years ago
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