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3 years ago

Please help me I will give you the brain thing and extra points. image below part 3

Biology

2 answers:

marishachu [46]3 years ago

8 0

Answer:

A Chemical, gas produced

Explanation:

jeka943 years ago

6 0

Answer:

$\boxed {\boxed {\sf A. \ Chemical \ change-gas \ produced}}$

Explanation:

Baking soda (NaHCO₃) and acetic acid (C₂H₄O₂) in vinegar react.

They form water (H₂O), sodium acetate (NaC₂H₃O₂), and carbon dioxide (CO₂).

This must be a chemical change, because new products are formed. We can eliminate choices B and C, because they are physical changes. Physical changes don't require a chemical composition change.

So, we are left with choices A and D.

Choice D must be incorrect because mass cannot disappear. According to the Law of Conservation of Mass, mass can't be made or destroyed.

That leaves choice A. Combining baking soda and vinegar is a chemical change, because new products, like gas, are formed. The gas helps blow up the balloon.

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t elevatUsing species C as a reference, you find that there are more genetic differences between species A and species C than be

Julli [10]

Answer:

Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.

Explanation:

There are two types of speciation: allopatric and peripatric.
Allopatric speciation occurs when the species of same population gets isolated that results in lack of gene flow.
From the isolated population, new species are formed then it is known as the peripatric speciation.
All these isolation of populations and formation of new species depends upon the initial or original group of species that was dispersed.

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3 years ago

The term ____________________ describes the chemical substances that make it possible for messages to cross from the synapse of

Aloiza [94]

The term Neurotransmitter describes the chemical substances that make it possible for messages to cross from the synapse of a neuron to the target receptor.

<h3>What are Neurotransmitters?</h3>

Neurotransmitters are endogenous chemicals that allow neurons to communicate with each other throughout the body.
Chemical synaptic transmission is primarily through the release of neurotransmitters from presynaptic neural cells to postsynaptic receptors.
There are a number of neurotransmitters used by the body for different functions, including acetylcholine, norepinephrine, glutamate, GABA, glycine, dopamine, and serotonin.
Glutamate is the principal excitatory neurotransmitter used in the brain.
GABA and Glycine serve as the major inhibitory neurotransmitters.

To learn more about Neurotransmitters,

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2 years ago

The feelings of heat and pain associated with eating hot peppers are primarily due to what mechanism?.

Ierofanga [76]

Answer: A specific chemical binding to nociceptors

Explanation:

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2 years ago

Distinguish between evolution and natural<br> selection.

Phantasy [73]

Answer:

Evolution is the gradual change in the inherited traits of a population over several generations. natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass their genes

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3 years ago

Connective tissue covering a bundle of muscle fibers is called

Tatiana [17]

Answer:

perimysium

Explanation.

Perimysium is the name given to the fibrous sheath that surrounds (covers) each bundle of single muscle fibres, the bundle being known as a fascicle.

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3 years ago

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