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2 years ago

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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Match the following:Part A1. Transverse foramina present.2. No canals or foramen present. It articulates superiorly with the sac

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

1. Cervical Vertebrate: These are the group of seven vertebrae of the neck, 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 transverse foramina which gives passage to vertebral artery and vein.

2. Thoracic Vertebrae: 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.

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

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

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

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3 years ago

How are the molecules in photosynthesis and cellular respiration similar?

WARRIOR [948]

The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart

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2 years ago

Carbon dioxide and methane are the two most abundant gases in magma.. a. True b. False

uranmaximum [27]

Answer:
The correct option is a (true).
Reason:
Carbon dioxide and methane gas are the principle's gas components
present in magma.

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3 years ago

How does the fossil record show that species change over time

Tasya [4]

It shows the evolution of an being. "Fossil record, history of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock." from https://www.britannica.com/science/fossil-record

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3 years ago

6 facts about DNA Replication??

GREYUIT [131]

Answer:

Your DNA could stretch from the earth to the sun and back ~600 times. ...

We're all 99.9 percent alike. ...

Genes make up only about 3 percent of your DNA. ...

A DNA test can reveal you're more Irish than your siblings. ...

The human genome contains 3 billion base pairs of DNA. ...

Your DNA could link you to places you'd never imagine.

Explanation:

i hope this helps! :)

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2 years ago

Read 2 more answers