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s344n2d4d5 [400]
3 years ago
5

What pattern is described by the theory of punctuated equilibrium?

Biology
1 answer:
Lunna [17]3 years ago
6 0
Theory of punctuated equilibrium may also know as punctuated equilibria, it was first presented in 1972 by Niles Eldredge and Stephen Jay Gould, the pattern describe is by the long duration of stability after the rupture patterns of evolutionary change. 
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This is an image of a neuron <br> what is the part labeled 1?
sweet-ann [11.9K]
Dendrites is 1
Soma is 2
Nylon sheeth is 3
Node of Ranvier is 4
Synapse is 5
5 0
3 years ago
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You decide to create a composting bin for your house. While checking on it one day, you notice that the compost bin has started
dalvyx [7]

Answer:

Turning the pile to aerate the compost and expose it to oxygen will help resolve the smell

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3 years ago
Neurotransmission is unidirectional insofar as chemical and electrical conduction is concerned within the individual neuron. Of
jasenka [17]

Answer: The correct option is C (Dendrites, Cell body, Axon, Axon terminals)

Explanation:

The transfer of information from neuron to neuron takes place through the release of chemical substances into the space between the axon and the dendrites. These chemicals are called neurotransmitters, and the process is called NEUROTRANSMISSION.

The order of neurotransmitter/receptor interaction that results in an electrical signal impulse and the release of another neurotransmitter for interaction in the synaptic cleft (signal conduction through a neuron) is from Dendrites--> Cell body--> Axon-->Axon terminals>

DENDRITES extends from the cell body of a neurone to receive messages at neuromuscular junction from other neurons. The CELL BODY directs all activities to the axon. The AXON is a long single fibre that transmits messages from the cell body and ends in terminals forming a synapse. Nerve impulses arrives at the axon terminal causing the release of neurotransmitters. The neurotransmitters binds to receptors at the dendrites of another neurons. The electrical signal impulses generated causes the release of neurotransmitters in another neuron.

8 0
3 years ago
A researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a
Anna71 [15]

The plant contains vascular tissue and has an alternation of generation. But, it lacks seeds. So, the plant is a Pteridophyte.

  • Vascular tissues are absent in thallophytes and bryophytes. They are found in pteridophytes, gymnosperms and angiosperms.
  • The sporophyte and gametophyte generation is common in bryophytes and pteridophytes.
  • Seeds are produced in plants that come under the group gymnosperms and angiosperms. The presence of seeds is the main characteristic of these groups.
  • Thallophytes, bryophytes and pteridophytes lack seeds. The reproduction in plants that comes under these groups occurs with the help of spores.

Thus, the recently discovered species of the plant should be classified based on the presence of vascular tissues, gametophytes and sporophytes. As pteridophytes contain vascular tissues, sporophytes and gametophytes and lack seeds, the plant is a pteridophyte

Learn more about pteridophytes here:

brainly.com/question/12375814

#SPJ10

6 0
2 years ago
Atelectasis is caused by occupational exposure to coal dust.<br> a. true<br> b. false
Irina18 [472]
The statement is true. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may effect part or all of a lung. An airway blockage also can cause Atelectasis. A blockage may be due to a foreign object, a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream. 
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