What is a pioneer species? (Will give brainiest)

Biology

1 answer:

inna [77]2 years ago

8 0

Answer:

The first species to colonize an ecosystem that is previously damaged or disrupted. Supplement. Pioneer species is the first to colonize an ecosystem previously disturbed or damaged. For example, sand that has become barren is colonized by a pioneer species of lyme grass (Leymus arenarius)

Explanation:

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Which of the following statements is (are) correct regarding the parietoacanthial projection (Waters' method) of the skull?

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Answer:

The correct answer is 1: In Waters´ method, the head is rested on the extended chin.

Explanation:

The parietoacanthial projection (Waters' method) is a widely used radiography method that demonstrates if there are any facial bone fractures, inflammation, or foreign body in the patient skull.

The patient must be in an erect position or prone. They must rest their head on the tip of the extended chin against the table surface. The neck must be hyperextended so that the orbitomeatal line (OML) forms a 37-degrees angle with the plane of the image receptor (IR). This is not perpendicular to IR, as perpendicular means that a 90-degree angle must be formed. The mentomeatal line (MML) must be perpendicular to the image receptor plane. Finally, the midsagittal plane must be perpendicular to the plane of the image receptor.

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Women have two X chromosomes.Recessive alleles on one X chromosome are often masked by dominant alleles on the other chromosome.Women will not be affected unless they receive two recessive alleles.

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why do the three species have similarities and differences in their body structures, and how can Xiao use the structures to dete

Luba_88 [7]

Answer:

Xiao can use these structures to create a similarity matrix that enables to differentiate between synapomorphies and homoplasies .

Explanation:

A synapomorphy is a trait that has been inherited from the same ancestor, this trait enables to establish a relation of homology between two or more species; while a homoplasy is an analog structure that doesn't have homology.

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The action potential is conducted into a skeletal muscle fiber by

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Answer:

The action potential is conducted into a skeletal muscle fiber by, transverse tubules.

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Describe 2 homologies (structures that were shared from a common ancestor) between the Zeuglodon and the Orca.

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Answer:

Homologous structures can be described structures which originate in different organisms from a common ancestor and may or may not have the same functions.

Zeuglodons can be described as ancient whales and Orca is a common whale today known as the killer whale.

Scientific studies show that Zeuglodans and Orca have many structures in common such as:

Having teeth with two roots
The presence of nostrils
Pelvis and internal femur bones

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