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TEA [102]
3 years ago
12

What two features are first seen in the marine worms

Biology
1 answer:
maw [93]3 years ago
7 0

Answer:

What two features are first seen in the planarians? Planarians have bilateral symmetry, which is associated with the development of a head region, such as that seen in the flatworm. Another feature first seen in the flatworm is the possession of three cell layers: ectoderm, endoderm, and mesoderm (the middle layer).

Explanation:

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30 more coins for answer
lord [1]
F is the symbol for Force! The units of force are newtons or because force is made up of mass (kg) x acceleration (meters/second squared) we can say the units for force is just a blend of these.

So units for force is newtons or kg per meter squared.

Both of these units are correct for force.



M is the symbol for Mass! The units for mass are kg


A is the symbol for acceleration, the units for acceleration are meters per second per second ( ms^2)
4 0
2 years ago
Which of the following correctly explains where DNA replication will begin on the strand oriented 5'→3', reading from left to
padilas [110]

The process of DNA replication is ALWAYS started immediately to the left of the RNA because DNA polymerase is an enzyme that needs RNA primer. It is required the presence of a primase for this process.

<h3>DNA replication and primase</h3>

DNA replication is always initiated by a specific RNA polymerase referred to as primase.

Primase is an RNA polymerase that generates a short  RNA oligonucleotide known as primer, which is complementary to the DNA strand.

Subsequently, DNA replication is started immediately to the left of this RNA primer where DNA polymerase adds nucleotides to the growing DNA strand.

In conclusion, the correct (and missing) statement here is 'the process of DNA replication is ALWAYS started immediately to the left of the RNA because DNA polymerase is an enzyme that needs RNA primer'.

Learn more about DNA replication here:

brainly.com/question/8185932

5 0
2 years ago
Where do the storms hit the hardest in europe?
Annette [7]

Answer:

The effects of tropical cyclones in Europe and their extratropical remnants include strong winds, heavy rainfall, and in rare instances, tornadoes or snowfall. There are only two modern cyclones officially regarded as directly impacting mainland Europe while still fully tropical or subtropical: Hurricane Vince in 2005, which struck southwestern Spain as a tropical depression; and Subtropical Storm Alpha in 2020, which made landfall in northern Portugal at peak intensity. Hurricane Debbie in 1961 may have still been tropical when it made landfall in northwestern Ireland, but this is disputed.[nb 1] In 1842, it is believed that a hurricane struck Europe.

3 0
2 years ago
When a horizontally positioned plant responds to gravity,
barxatty [35]
When a horizontally positioned plant responds to gravity, then auxins in the lower sides of the stems cause cell elongation that bends the stem upright. The correct option among all the options that are given in the question is the first option. This action is mainly due to the nature of the plants to grow towards sunlight.
6 0
3 years ago
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The pleural cavity is a part of which cavity?
Varvara68 [4.7K]

Answer:

Thoracic cavity

Explanation:

The definition for pleural cavity is: The space enclosed by the pleura, which is a thin layer of tissue that covers the lungs and lines the interior wall of the chest cavity.

Chest cavity or thoracic cavity is the space enclosed by the ribs, the vertebral column, sternum and is separated from the abdominal cavity (the body’s largest hollow space) by a muscular and membranous partition, the diaphragm.

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3 years ago
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