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amm1812
2 years ago
7

What change caused multicellular life to form?

Biology
2 answers:
Aleksandr [31]2 years ago
8 0

Answer:

There are many theories as to how multi-cellular life formed. The development of multi cellular life has occurred independently at least 46 times. It has been proposed that a minor genetic change in a molecule guanylate kinase protein-interaction domain (GKP-ID) may have allowed life to go from single to multi-cellular. It is also Possible a mutation of the DNA responsible for the mechanism of cell-division lead to the development of multi cellular life.

Explanation:

When the ice age ended and Earth warmed, the continents broke apart. This event allowed the shallow seas to cover the continents. The warming of Earth, accompanied by the seas covering the land, created the proper conditions for multicellular organisms to form.

A multicellular organism is an organism that consists of more than one cell, in contrast to a unicellular organism. All species of animals, land plants and most fungi are multicellular, as are many algae, whereas a few organisms are partially uni- and partially multicellular, like slime molds and social amoebae such as the genus Dictyostelium.

xeze [42]2 years ago
5 0

Answer:

The warming of Earth, accompanied by the seas covering the land, created the proper conditions for multicellular organisms to form.

Explanation:

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Stels [109]

Answer:

1. Transverse foramina present: Cervical

2. No canals or foramen present. It articulates superiorly with the sacrum: Coccyx

3. Receive the most stress: Lumbar

4. Attach to ribs: Thoracic

5. Articulates with hip bones of the pelvis: Sacrum

Explanation:

The vertebral column is a <u>series of 33 bones called vertebrae</u> that play a key role in organ protection, movement of body, and overall support. The column has been divided into <u>5 different regions</u> with the number of bones.

<u><em>1. Cervical Vertebrate</em></u><u>:</u> These are the group of <u>seven vertebrae of the neck</u>, start immediately below the skull. Two cervical bones C1 and C2 are unique in function. They are responsible for the movement of the head.  They have <u>transverse foramina</u> which <u>gives passage to vertebral artery and vein</u>.

<em><u>2. Thoracic Vertebrae:</u></em> They are a group of twelve small bones that form the vertebral spine in the upper trunk. The function of the thoracic vertebrae is to articulate with ribs to produce the bony thorax.

<em><u>3. Lumbar Vertebrae: </u></em>This is the largest segment of the vertebral column that consists of 5 bones between the rib cage and pelvis. They <u>carry all of the upper body weight</u> providing flexibility and movement to the trunk region.  This is why it can <u>receive the most stress easily</u>.

<em><u>4. Sacrum Vertebrae: </u></em>There are 5 sacral vertebral fused bones. It <u>connects to the hip bones and play role in forming a strong pelvis</u>.

<em><u>5. coccyx Vertebrae:</u></em> These are a group of 4 fused bone. There is <u>no vertebral canal due to a lack of vertebral arches</u>. They <u>provide </u>an <u>attachment site for muscles</u> ligament and tendons. They also <u>play a role in stabilization and support</u> while sitting.

5 0
3 years ago
How are the molecules in photosynthesis and cellular respiration similar?
WARRIOR [948]

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8 0
2 years ago
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uranmaximum [27]
Answer:
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Reason:
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3 0
3 years ago
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GREYUIT [131]

Answer:

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Explanation:

i hope this helps! :)

4 0
2 years ago
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