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Answer:

Answer:

The Isopropanol had a lower heat of vaporization than that of water, meaning that it didn't have to have as much energy to accomplish a phase change, in this case evaporation.

According to the forces of attraction, isopropanol has lower heat of  vaporization as compared to water .

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Answer:

bitter gourd seeds

castor seeds

Mango seeds

Night jasmime seeds

Answer:

For example, the allele frequency of the mutant cystic fibrosis allele among Caucasians is 0.025, while the frequency of the normal allele is 0.975.

Explanation: hope fully this helps

The frequency of the dominant allele is 0.975, and the frequency of the cystic fibrosis (recessive) allele in the population is 0.02 (or 2%). 42 % is the people in this population are cystic fibrosis carriers.

Hardy-Weinberg equation states that there will be no change in the genotype of a population unless, there is any evolutionary change happens.

This is the Hardy-Weinberg equation

p2 + 2pq + q2 = 1 and p + q = 1

The  people in this population are cystic fibrosis carriers

2pq = 2 (0.7 x 0.3) = 0.42 = 42%

Thus, the correct option is 0.975, 0.02 (or 2%), and 42 %

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Answer:

false

Explanation:

Answer:

I think 1

Explanation:

you can't break an element into different elements

Answer:

The doctor do the X ray of her meniscus.

Explanation:

The doctor do the X ray of her meniscus in order to find out the damage in the meniscus, if the damage occurs on the outside of meniscus so it can be heal itself but if the meniscus is deeply damaged so it can only be repair through surgery. If the meniscus is removed, the Sue will not be able to maintain her regular active schedule because there is no shock absorber in your knee which absorb large stress so she can't  do her regular activities.

Answer:

1st question= physical weathering

2nd question= deposition

Explanation:

hope it helps

Answer:

CO2

Explanation:

Answer:

Your answer would be A: A pack of hyenas hunt together so they can attack larger animals.

Answer:

They study nearby objects and match their properties with those of distant objects.

Explanation:

I have already took a test for this.

Since we are unable to reach stars or collect samples from distant galaxies, electromagnetic radiation, or light, is the only means for far-off things in space to communicate with us.

Telescopes or other devices that have been launched into space as space observatories gather information about distant planets, galaxies, and other astronomical objects.

Numerous telescopes sensitive to various regions of the electromagnetic spectrum are used by astronomers to explore objects in space.

Although the nature of all light is basically the same, how astronomers observe light varies on the region of the spectrum they are interested in.

Therefore, telescopes are light collectors, light is responsible for Hubble Space Telescope.

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Answer:

The Sun is completely blocked in a solar eclipse because the Moon passes between Earth and the Sun. Even though the Moon is much smaller than the Sun, because it is just the right distance away from Earth, the Moon can fully blocks the Sun’s light from Earth’s perspective. Sometimes the Moon is far enough away that it doesn't create a total solar eclipse. However, once the Moon's growing orbit takes it approximately 14,600 miles (23,500 km) farther away from Earth, it will always be too far away to completely cover the Sun. That won't happen for a long time though.

Explanation:

https://spaceplace.nasa.gov/total-solar-eclipse/en/

I'm stuck between A and D but I'm most sure about D

Answer:

The autonomic nervous system is in charge of controlling visceral effectors. Traditionally, it is described by its peripheral nervous components (ganglia, nerves and plexuses) and two divisions are distinguished: the sympathetic and the parasympathetic. Transmission of the excitatory stimulus through the synaptic cleft occurs by release of neurotransmitters; the neurotransmitters of the sympathetic and parasympathetic nervous system are mainly norepinephrine (NA) and acetylcholine (AC). The NA-secreting fibers are called adrenergic and those that secrete AC, cholinergic. All preganglionic neurons, both those of the sympathetic nervous system and those of the parasympathetic nervous system, are cholinergic. The neuron that releases the neurotransmitter is called a presynaptic neuron. The signal receptor neuron is called a postsynaptic neuron. Depending on the type of neurotransmitter released, postsynaptic neurons are either stimulated (excited) or de-stimulated (inhibited).

Explanation:

The autonomic nervous system is the part of the central and peripheral nervous system that is responsible for the regulation of the involuntary functions of the organism, the maintenance of internal homeostasis and the adaptive responses to variations in the external and internal environment  and two divisions are distinguished: the sympathetic and the parasympathetic. Acetylcholine is the preganglionic neurotransmitter of both divisions of the S.N.A. (sympathetic and parasympathetic) and also of the postganglionic neurons of the parasympathetic. The nerves at whose endings acetylcholine are released are called cholinergic. Norepinephrine is the neurotransmitter of postganglionic sympathetic neurons. The nerves into which norepinephrine is released are called adrenergic. Within the efferent sympathetic impulses, the postganglionic neurons that innervate the eccrine sweat glands and some blood vessels that supply the skeletal muscles are of the cholinergic type. Both acetylcholine and norepinephrine act on the different organs to produce the corresponding parasympathetic or sympathetic effects. The peripheral nerve endings of the sympathetic form a reticulum or plexus from which the terminal fibers come in contact with the effector cells. All the norepinephrine in peripheral tissues is found in the sympathetic endings in which it accumulates in subcellular particles analogous to the chromaffin granulations of the adrenal medulla. The release of norepinephrine at nerve endings occurs in response to action potentials that travel through nerve endings. The receptor, when stimulated by catecholamines, sets in motion a series of membrane changes that are followed by a cascade of intracellular phenomena that culminate in a measurable response. There are two classes of adrenergic receptors known as alpha and beta. These two classes are again subdivided into others that have different functions and that can be stimulated or blocked separately. Norepinephrine primarily excites alpha receptors and beta receptors to a small extent. The neurotransmitter acetylcholine is synthesized at the axonal terminal and deposited in synaptic vesicles. Acetylcholine activates two different types of receptors, called muscarinic and nicotinic receptors. Acetylcholine (AC) synthesis takes place at presynaptic termination by acetylation of choline with acetyl-coenzyme A, a reaction catalyzed by acetylcholinetransferase. The energy required for the release of a neurotransmitter is generated in the mitochondria of the presynaptic terminal. Binding of neurotransmitters to postsynaptic membrane receptors produces changes in membrane permeability. The nature of the neurotransmitter and the receptor molecule determines whether the effect produced will be one of excitation or inhibition of the postsynaptic neuron.

Answer:

I am writing this in response to a letter regarding evolution. Evolution is increasingly solid, not shaky. Darwin’s “theory” or explanation was a way of understanding what he had discovered (which did not include genes, chromosomes, DNA or nucleotide bases). Our explanations now include genetics and the commonality of mutation.  

Proofs are solid, not in question by serious scientists. Direct observation is one, which we see in the fact that this year’s flu evolved a little too far from last year’s, so flu shots are less effective this year than we would like them to be.  

Fossils tell the story well: whales with legs, dinosaurs with feathers and Tiktaalik. The latter was found in the Canadian north and is part fish, part amphibian, before there were ever any amphibians. Imperfection is a good proof: think of your useless appendix, the very bad design of your ankles, knees, and back (talk to a chiropractor about that).  You have big toes because they used to be useful thumbs for your grasping feet.

Many other animals and even plants similarly have flaws that show their evolutionary past. Two large human chromosomes reflect the coming together of two chimpanzee chromosomes each.

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Thank you

Answer:

D.

Explanation:

Energy from plants is transferred to consumers and then producers and consumers to decomposers.

Answer:

decomposers si the light answer

Answer: C.) Into the heart

Once the ventricles flow through veins, the blood goes to the heart, it literally goes to the heart so the heart can pump the blood to your veins and it flows throughout your body.

Hope this help. :)

Answer: Tissue

Explanation: Hope this helps!

Answer:

The present value after 2 years is $98

Explanation:

Given

[tex]a = 200[/tex]

[tex]r = 30\%[/tex]

[tex]t = 2[/tex]

Required

Determine the new value

This is calculated using:

[tex]y = ab^t[/tex]

Where b =

[tex]b = 1 - r[/tex]

This gives:

[tex]b = 1-30\%[/tex]

[tex]b = 1-0.30[/tex]

[tex]b = 0.70[/tex]

So:

[tex]y = ab^t[/tex]

[tex]y =200 * 0.70 ^2[/tex]

[tex]y =98[/tex]

The present value after 2 years is $98

Answer:

$98

Explanation:

It is the "Correct Answer"

Answer:

1. California Sea Lion and Galapagos Sea Lion are closely related because they have the same genus Zalophus.

2. Escherichia is a Genus.

3. Fungi

evolution is fundamentally unpredictable.the theory of evolution as it is used here refers to "macroevolution'a theory is meant to both explain and predict;the theory of evolution only explains .the theory of evolution is not a theory and it is suggested calling it a working hypothesis:the working hypothesis of evolution

Answer:

picture 1: frameshift mutation      picture 2: karyotype c

Explanation:

Answer:

The answer to the question is DNA

Answer:

C) determines the traits of offspring resulting from sexual reproduction

Explanation:

The genetic information contained in the cells resulting from meiosis determines the traits of offspring resulting from sexual reproduction

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