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oksian1 [2.3K]
3 years ago
9

Hormones in the bloodstream are what

Biology
1 answer:
algol [13]3 years ago
8 0

Answer:

chemical messenger.

Explanation:

yw loves!!!!

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A chemical reaction is a process by which atoms or groups of atoms in substances are
ziro4ka [17]
A chemical reaction is a process by which atoms or groups of atoms in a particular substance are rearranged from the arrangement within the reactants to a new arrangement within the products.
6 0
3 years ago
Natural selection suggests that creatures with mutations disadvantageous to survival will not live to reproduce, yet there are e
schepotkina [342]

Answer: No

Explanation: It is beneficial if the animals that are disadvantageous doesn't reproduce so it doesn't discredit natural selection. The traits in which variation is occured are more suitable for organism to live and reproduce in the environment are preserved and are passed from generation to generation.

However, natural selection effects limited number of progeny.

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3 years ago
Outline the digestion of fish​
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Do you have a picture or something?
3 0
2 years ago
Ceratium fusus is a protist that is found primarily in coastal waters, especially around the coast of the United Kingdom. These
kotykmax [81]

A chemical defense mechanism is called bioluminescence.

As mentioned in the reaction, Ceratium fusus undergoes a special chemical reaction at night which helps them defend themselves from predators. During this reaction, light is produced inside a living organism. However, this type of reaction does not produce heat although it does produce light.

<h3>What is bioluminescence used for?</h3>

The most well-known purpose of bioluminescence is to defend the organism against attacks by predators. This is because the light confuses or frightens predators.

Besides confusing the predator, the light can also alert large predators to approach the location of the organism, in this way this large predator will eat the predator that is threatening the organism which in our question, is Ceratium fusus.

Many marine organisms use the phenomenon of bioluminescence for their defense, in particular marine invertebrates, vertebrates, certain micro-organisms as well as certain fish and fungi.

Hence concluded that the bioluminescence characteristic of Ceratium fusus is being described.

To know more about bioluminescence  refer to the link :

brainly.com/question/765632

3 0
2 years ago
A single motor neuron together with all the skeletal muscle fibers it innervates is called a _____.
mylen [45]

A single motor neuron together with all the skeletal muscle fibers it innervates is called a motor unit.

  • Motor neurons are more than just relays for the motor commands sent down the hierarchy from higher levels. They themselves are parts of intricate circuits that carry out extensive information processing.
  • Due to their highly branching, intricate dendritic trees, motor neurons are able to integrate inputs from several other neurons and generate accurate outputs.
  • A single motor neuron, and nothing else, innervates each and every muscle fiber (make sure you understand the difference between a muscle and a muscle fiber). However, several muscle fibers can be innervated by a single motor neuron.
  • A motor unit is the aggregate of a single motor neuron and all of the muscle fibers that it innervates. The innervation ratio refers to how many fibers a motor unit innervates.

Learn more about the motor unit with the help of the given link:

brainly.com/question/13554533

#SPJ4

6 0
1 year ago
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