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zepelin [54]
3 years ago
9

Which are typical pioneer species during primary succession?

Biology
1 answer:
JulijaS [17]3 years ago
3 0

Answer & explanation:

Primary succession occurs in environments that did not have biological communities in place and present unfavorable conditions for the establishment of life. Examples of these sites are rocks, dunes and newly solidified lava pits.

The pioneer organisms in primary succession are mainly producers and some decomposers.

In <u>dune</u> <u>environments</u>, for example, there are grasses, whose seeds are wind-borne and able to withstand excessive heat, water scarcity and unstable soil, and their roots are firm, preventing these plants from being harmed by the wind.

Sites with <u>rocky</u> <u>surfaces</u> can be colonized by photosynthetic bacteria, fungi or some species of algae. These organisms release substances that alter the substrate, allowing the installation of new species over time.

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How were the novae on Venus similar to the landforms in Gerva's computer model?
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2 years ago
Muscles that move the eyeball have ________ fibers.
ozzi

Muscles which are responsible for the movement of the eyeball have fast fibers. Thus, the correct option is A.

<h3>What are fast muscle fibers?</h3>

Fast-twitch muscle fibers are the muscle fibers which provide bigger and more powerful forces, however for shorter durations and fatigue quickly. They are more anaerobic with less blood supply, and hence are sometimes also referred to as white fibers or type II fibers.

Fast-twitch muscle fibers are activated by the high intensity movements which are sustained in short bursts. Examples of movements include sprints, burpees, and quick lateral movements.

Therefore, the correct option is A.

Learn more about Eyeball here:

brainly.com/question/10945999

#SPJ1

Your question is incomplete, most probably the complete question is:

Muscles that move the eyeball have ________ fibers.

A) fast

B) slow

C) intermediate

D) circular

E) All of the answers are correct.

4 0
1 year ago
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OverLord2011 [107]
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4 0
3 years ago
CQ9. If you want to use PCR technique to amplify markers located on six unlinked locations on the chromosomes, how many total un
irakobra [83]

Answer:

<em>This question includes the following options:</em>

<em>A.</em><em>1 - </em><em>B.</em><em>3 - </em><em>C.</em><em>6 - </em><em>D</em><em>.8 -</em><em> E.</em><em> 12</em>

PCR which stands for <em>"Polymerase Chain Reaction"</em> is a molecular biology procedure to quickly multiply a small sample of DNA into millions or billions of DNA copies for studying purposes.

<em>"Unlinked"</em> signifies that the markers are present in 6 various chromosomes, but to amplify those markers we would need <em>(</em><em>12</em><em>)</em> unique primer sequences, due to it is required to have the reverse and forward primers for every marker; thereby the answer is <em>(</em><em>E.</em><em>)</em>

7 0
3 years ago
Read 2 more answers
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