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Leona [35]
3 years ago
14

How do invasive species change the diversity index

Biology
1 answer:
LuckyWell [14K]3 years ago
5 0

Las especies invasoras son animales, plantas u otros organismos que se desarrollan fuera de su área de distribución natural, en hábitats que no le son propios o con una abundancia inusual, produciendo alteraciones en la riqueza y diversidad de los ecosistemas. Cuando son transportados e introducidos por el ser humano en lugares fuera de su área de distribución natural, consiguiendo establecerse y dispersarse en la nueva región se les denomina especies exóticas invasoras resultando normalmente muy dañinas

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Which reproductive method is the only one available to mosses and ferns?
elena55 [62]

Answer:

Alternation of generation with both sexual and asexual

Explanation:

In mosses, the dominant plant is called a gametophyte while in ferm the dominant is sporophyte. Gametes are produced by the gametophyte and fertilization occurs forming an embryo. The embryo develops into a plant called the sporophyte.

4 0
3 years ago
Which is a shared characteristic of all animals?
Molodets [167]
They are all eukaryotic orgabisns, have a wild nature, they all have a niche, etc.
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3 years ago
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A tissue sampler that is being used for a medical procedure is placed inside a saline solution. Unknown to the medical team, the
solong [7]

Answer: Water will leave the cell and the cell will shrink.

Explanation:

Osmosis is the net movement of water from an area of low to high concentration of solutes through a semipermeable membrane. If none of the compartments contains solutes, then the water moves in either direction between the compartments. <u>However, if we add a solute to one of the compartments, this will affect the probability of water molecules leaving that compartment and moving into the other compartment.</u> The ability of water to move into or out of a cell is called tonicity. The tonicity of a solution is related to its osmolarity, which is the total concentration of all the solutes in the solution. A solution with low osmolarity has few solute particles per liter of solution, whereas a solution with high osmolarity has many solute particles per liter of solution. When two solutions with different osmolarities are separated by a membrane permeable to water but not permeable to solutes, water diffuses from the side with lower osmolarity to the side with higher osmolarity. So, solutions can be:

  • <u>Hypotonic</u>: The extracellular fluid has a lower osmolarity than the fluid inside the cell, it is hypotonic with respect to the cell, and the net flow of water will be into the cell.
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If a cell is placed in a hypertonic solution, water will leave the cell and the cell will shrink due to the difference in pressure and may even die from dehydration.

7 0
3 years ago
Name the planets in order from the sun.
Karolina [17]

Answer: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune

Explanation:

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3 years ago
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A(n) ______ is one present in the common ancestor and all members of the group. primitive character homologous structure analogo
sesenic [268]
<span>A(n)PRIMITIVE CHARACTER  is one present in the common ancestor and all members of the group

Primitive character is also known as ancestral character in phylogenetics. It is defined as a characteristic that  has undergone little change since time immemorial and is inherited from a common ancestor of a clad.


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