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soldier1979 [14.2K]
3 years ago
6

Which tool did maurice watkins use when studyng DNA

Biology
1 answer:
adoni [48]3 years ago
5 0

X-ray crystallography

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We have talked about the central and peripheral nervous systems. We know that the peripheral nervous system relays signals to an
JulsSmile [24]

Answer:

  1. The peripheral nervous system has - Somatic nervous system and Autonomic nervous system.
  2. These systems control our body action by this controls all the types of muscles.

Explanation:

  • Somatic nervous system have -  Cranial nerves and  Spinal nerves
  • Autonomic nervous system have -   Sympathetic and  Parasympathetic  system.
  • The somatic nervous system controls our voluntary and involuntary actions by cranial and spinal nerves and controls all three types of muscles such as cardiac, smooth and skeletal.
  • The autonomic nervous system controls the involuntary actions of our internal organs.
  • The sympathetic and parasympathetic system relates to all types of muscle.
  • The sympathetic and parasympathetic system accelerates and decelerates the heart beat respectively, by this controls the cardiac muscle.
  • The sympathetic and parasympathetic system stimulates and relaxes our internal organs respectively, by this controls the smooth muscles.
  • The sympathetic and parasympathetic system prepares our body as a whole for a action and also relaxes our whole body respectively, by this controls the skeletal muscles.

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3 years ago
What are some challenges animals might face when migrating?
Andreas93 [3]

Answer:

Some challenges animals might face when migrating are disease, global climate change, overexploitation, and habitat destruction.

Explanation:

In virtually every corner of the globe, migratory animals face a growing array of threats, including habitat destruction, overexploitation, disease, and global climate change. Saving the great migrations will be one of the most difficult conservation challenges of the 21st century.

3 0
3 years ago
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Pacific nw tree octopus where does it live
ella [17]

The correct answer is - temperate rainforests of the Olympic Peninsula.

The Pacific northwest tree octopus is a fictional animal, thus it does not exist in the present, nor there is any proof that such a creature existed in the past, though there's every chance that it can evolve in the future.

According to the description of this fictional octopus species, unlike the octopuses we know, it is actually amphibious. This basically means that this octopus is able to live in the water, but also be terrestrial. It has developed from the octopuses in the East Pacific, and it started mostly to live on land, or rather on trees. It has used its eight tentacles in order to be able to have a perfect tool and easy arboreal life, swinging from one branch to another, being able to cover longer distances very easily, and manage to hunt with relative ease.

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3 years ago
How could you tell an animal cell from a plant cell?
Nikolay [14]

A difference between plant cells and animal cells is that most animal cells are round whereas most plant cells are rectangular. Plant cells have a rigid cell wall that surrounds the cell membrane. Animal cells do not have a cell wall.

7 0
3 years ago
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A developing human is referred to as a(n) _____ from fertilization through the first eight weeks of prenatal development.
kirill115 [55]
Fertilization --> Embryo --> Fetus
Thru 8 weeks
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3 years ago
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