what is evolution???

Answers

Answer 1
Evolution is change in the heritable characteristics of biological populations over successive generations

Related Questions

please help me with my biology!!!​

Answers

Answer:

1. logistic population growth

2. K = 72

3. I think weeks 2 and weeks 4 through 10

4. 2.78%

5. 12

Give five example molecules​

Answers

These are the five examples for the molecules with the clear definition.

Explain how genetic mutations may result in genetic and physical variations (differences) within a population

Answers

The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.

Which statement best explains how tectonic activity affects long-term climate change?

Volcanic eruptions change Earth’s tilt, which is responsible for the seasons.
The movement of continents changes wind patterns and ocean currents.
The change in Earth’s elliptical orbit around the Sun causes climate change.
The increase of sunspots increases Earth’s temperature.

Answers

Answer: The movement of continents changes wind patterns and ocean currents.

hope this helps!

Explanation:

The best statement that describe the effect of tectonic activity on climate change is that the movement of continents changes wind patterns and ocean currents.

What are tectonic activities?

Tectonic activities includes volcanoes, mountain building, earthquakes and many more.

Tectonic activities are common in plate boundaries where plates converge, diverge or transform.

As a result of the movement of these continental plate, tectonic activities occurs causing earth climate change

Therefore, the movement of this oceanic or continental plates changes the wind pattern and ocean current.

learn more on tectonic activity here: https://brainly.com/question/12907968

Why is the question what is an plane so difficult to answer

Answers

Answer:

Look below - A plane is math related.

Explanation:

a flat surface on which a straight line joining any two points on it would wholly lie.

"the horizontal plane"

synonyms:

flat surface · level surface · the flat · horizontal

Hope this Helps!

Answer:

I Don't Know what your asking but if your trying to figure out what a plane is this might help

1.  a flat surface on which a straight line joining any two points on it would wholly lie.

2. a level of existence, thought, or development.

3. completely level or flat.

4. (of a bird or an airborne object) soar without moving the wings; glide.

Also I don't know why this would be biology related.

What is the size of Human heart?​

Answers

Answer:

A human heart is roughly the size of a large fist.

Explanation:

but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.

HELP DUE IN 10 MINS!
What type of mutation is shown?
inversion

translocation

deletion

duplication

Answers

This is an inversion.

The section of chromosome has been reversed end to end.

Answer:

I think its B. translocation

Let it Glow

The light glows bright in the house tonight
Not a darkness to be seen
A kingdom of light bright
And it looks like I'm the brightest
The electricity is zapping like this light storm outside
Couldn't keep it in, The sun knows I've tried
Don't let them Down, don't let them Glow
Be the good Light you always have to be
Conceal, don't glow, don't let them flow
Well, now they know
Let it glow, let it glow
Can't light up this place anymore
Let it glow, let it glow
Turn off and slam the switch
I don't care what they're going to see
Let the electricity rage on
It's funny how some light bulbs makes everything seem small
And the light that once controlled me can't light me up at all
It's time to see how I can shine
To test the limits and glow up
No light, no power, no darkness for me
I'm brightttt!!!!
Let it glow, let it glow
I am one with the light in the sky
Let it glow, let it glow
You'll never see me flow
Here I glow and here I shine
Let the electricity rage on
My light flows through the air into this house
My brightness is spiraling in light fractals all around
And one thought glows like a bright blast
I'm never going dark, the dark is in the past
Let it glow, let it glow,
When I glow like the break of light
Let it glow, let it glow
That perfect lamp is gone
Here I stand in the light of day
Let the electricity rage on
The dark never bothered me anyway

Answers

Answer:

This is the most amazing thing i have ever seen, keep writing songs.

Explanation:

WOW!

Q.3. Describe the structure of the internal and middle ear.

Answers

Answer:

The inner ear has two openings into the middle ear, both covered by membranes

Explanation:

The oval window lies between the middle ear and the vestibule, whilst the round window separates the middle ear from the scala tympani (part of the cochlear duct)

The internal ear

➥ The inner ear (also called the labyrinth) contains 2 main structures — the cochlea, which is involved in hearing, and the vestibular system (consisting of the 3 semicircular canals, saccule and utricle), which is responsible for maintaining balance.

➥ The cochlea is filled with fluid and contains the organ of Corti — a structure that contains thousands of specialised sensory hair cells with projections called cilia. The vibrations transmitted from the middle ear cause tiny waves to form in the inner ear fluid, which make the cilia vibrate.

➥ The hair cells then convert these vibrations into nerve impulses, or signals, which are sent via the auditory nerve to the brain, where they are interpreted as sound. The round window (fenestra cochlea) is a membrane that connects the cochlea with the middle ear. It helps dampen the vibrations in the cochlea.

➥ The semicircular canals also contain fluid and hair cells, but these hair cells are responsible for detecting movement rather than sound. When you move your head, the fluid within the semicircular canals (which sit at right angles to each other) also moves. This fluid motion is detected by the hair cells, which then send nerve impulses about the position of your head and body to the brain to allow you to maintain your balance.

➥ The utricle and saccule work in a similar way to the semicircular canals, allowing you to sense your body’s position relative to gravity and make postural adjustments as required.

The middle ear

➥ The middle ear is an air-filled space that contains 3 tiny bones (known as ossicles), called the malleus (hammer), incus and stapes (stirrup). Sound waves that reach the tympanic membrane cause it to vibrate.

➥ This vibration is then transmitted to the ossicles, which amplify the sound and pass on the vibration to the oval window (a thin membrane between the middle and inner ear). The Eustachian tube is a narrow tube that connects your middle ear to the back of your nose and throat (known as the nasopharynx). Its function is to allow air into the middle ear as well as drain mucus from the middle ear into the nasopharynx.

➥ When you swallow, your Eustachian tube opens up to allow air into the middle ear, so that the air pressure on either side of the tympanic membrane is the same. In situations when there is a sudden change in air pressure (e.g. during take-off and landing when travelling on a plane), the pressure in the middle ear is not the same as the outside air pressure.

➥ This can make your eardrum bulge or retract and less able to transmit vibrations, causing temporary hearing problems. By swallowing or ‘popping’ your ears, you can equalise the pressure.

Genetic mutations introduce new gene forms in a population. For instance, the mutation that affects
hemoglobin alters the shape of the red blood cell and makes it sickle-shaped. Which statement
below would explain why the sickle-cell mutation has spread through the gene pool?

A. There is a selective advantage to having Sickle Cell Anemia.

B. This kind of mutation demonstrates a common ancestor.

C. The sickle cell mutation has no benefit.

D. Sickle cell anemia increases the risk of death.

Answers

Answer:

B- this kind of mutation demonstrates a common ancestor.

Explanation:

in order to have sickle cell anemia you need to have both recessive alleles from both parents, this recessive allele has to be continuous passed down from generation to generation on both sides, which shows a common ancestor from long ago

What is speciation? What are the causes of speciation? How does isolation lead to speciation?NO LINKS PLEASE

Answers

The biological species concept tells us that organisms belong to the same species if they can breed to produce fertile and viable offspring. Speciation is therefore the development of reproductive isolation between individuals of an original population.

This can occur in 2 different ways:

1. Allopatric speciation. This is when speciation occurs due to some sort of geographic barrier separates a population into 2 groups. These two groups can then undergo genetic divergence, where each group grows increasingly dissimilar genetically due to random mutations and natural selection acting separately in each group, or from processes such as genetic drift. It is important to recognize that the lack of gene flow between these two groups contributes to the genetic divergence of the groups. Genetic divergence can lead to prezygotic and post-zygotic barriers which prevent production of fertile/viable offspring between the 2 groups. Each of these populations now represents a new species, whose gene pools are completely separate from one another.

2. Sympatric speciation. This is when speciation occurs without the presence of any sort of physical/geographical barriers. Truthfully, this is a much less common occurence. However, it is thought that sympatric speciation can occur as a result of strong divergent selection. Sympatric speciation may also occur as a result of a polyploid individual being introduced into a diploid population.

Isolation leads to speciation by preventing gene flow between 2 groups of an original population, allowing genetic differences between the groups to accumulate over time (via natural selection, genetic drift, etc.). Over time, the accumulation of these genetic differences may result in reproductive isolation between the 2 groups, causing these two groups to be committed to separate evolutionary paths.

Answer: So, how might speciation happen?

Explanation:

Speciation describes a situation where a population in a species becomes so different that it can no longer successfully interbreed with other populations of the ‘same’ species.

Question 12 When cells get energy from glucose without oxygen it is called fermentation, cytoplasm, photosynthesis, phosporolation​

Answers

Answer:

fermentation

Explanation:

Glycolysis is an ancient, major ATP-producing pathway that occurs in almost all cells, eukaryotes and prokaryotes alike. This process, which is also known as fermentation, takes place in the cytoplasm and does not require oxygen.

Ok, so, yes, I did tell my husband about the baby, but he thinks that it’s not his? He is planning on leaving yikes....?

Answers

Take a dna test... he will be more confident about it then

Do a dna test on the baby

What is the most important biological molecule that provides energy for most cellular
processes?

Answers

ATP
Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups. The word adenosine refers to the adenine plus the ribose sugar.

Explain what is likely to happen to a water molecules entering area A in the process of photosynthesis​

Answers

Answer: The granum is a part of the chloroplast. The chloroplast contains the chlorophyll pigment and it is necessary for the trapping of the energy present in the sunlight. As a result of this the photolysis of water takes place and hence water is broken down from water molecule to proton and oxygen.

Explanation:

Cuál es la relación entre instinto Y aprendizaje

Answers

La relación entre el instinto y el aprendizaje es que el instinto es innato por lo cual no te das cuenta que lo hiciste, pero luego puedes internalizar ese instinto y hacerlo de manera voluntaria.

Select the correct answer.
Which item is made from a synthetic material?
a. cotton pants
b. leather jacket
c. frying pan
d. wicker basket

Answers

A Leather jacket bdheueugenwudhe

Answer:

B is the wrong answer the other guy is wrong

Explanation:

i did the test just now and it was wrong

If a flower shows incomplete dominance, and the parent plants are red and white, what color will the heterozygotes be?

Answers

Answer:

Pink. Incomplete dominance is a blending of phenotypes.

Carbohydrates, fats, and proteins needed for the normal functioning of our cells are obtained from
A. oxygen
B. food
C. carbon dioxide
D. vitamins

Answers

b

Explanation:

bec because food are the only thing that can contain carbohydrate fat and protein for human being

B Because when you look on a back of a box you always see carbohydrates, fats, and protein and those help are cells normally function everyday!

What codes for RNA
plz help

Answers

Answer: DNA

Explanation:

Can humans ever directly see a photon?​

Answers

Answer:

Yes humans can directly see a photon.

Explanation:

In fact, photons are the only things that humans can directly see. A photon is a bit of light. Human eyes are specifically designed to detect light.

This happens when a photon enters the eye and is absorbed by one of the rod or cone cells that cover the retina on the inner back surface of the eye.

For Example

When you look at a chair, you are not actually seeing a chair. You are seeing a bunch of photons that have reflected off of the chair. 

Thus, Yes humans can directly see a photon.

-TheUnknownScientist

Why does water have a high surface tension? (2 points) Group of answer choices The lengths of the bonds in water molecules can change. Water molecules contain 18 electrons. Hydrogen bonding keeps water molecules close together. Water is a liquid at room temperature.

Answers

Answer:

Water's high surface tension is due to the hydrogen bonding in water molecules. Water also has an exceptionally high heat of vaporization. ... Water's heat of vaporization is 41 kJ/mol. Vapor pressure is inversely related to intermolecular forces, so those with stronger intermolecular forces have a lower vapor pressure.

Seven students in a class have masses of 55, 60, 60, 65, 70, 85, 95 kg, respectively. What is the average mass in kg?

Answers

The average mass is 70 kg.

To find the average you need to add up all of the masses and divide by the total number of masses (7).

(55 + 60 + 60 + 65 + 70 + 85 + 95) / 7 =
490 / 7 = 70kg.

70 kg is the average mass.

Which type of selection would be caused by this bird species ?

Answers

Answer:

Directional Selection

Explanation:


Help me with this and I shall mark you the brainiest!!

Answers

Answer:

Mitosis and meiosis both involve duplication of a cell's dna content

Where do hurricanes most always start?
a) over tropical oceans
b) over tropical land
c) over attic oceans

Answers

a) over tropical oceans

help asap
Living things _______________.
Group of answer choices

Are made up of one cell

Are made of more than one cell

Can be A or B

Do not have cells

Answers

Explanation:

Are made up of one cell ...that is the fact about all living things

Answer:

★ The answer is that there are made up of one cell

Explanation:

Hope you have a great day :)

What happens to the body when blood sugar level decrease than the normal level?

Answers

Answer:

Hello There!!

Explanation:

You can get variety of problems and issues from you're nervous system which includes headaches,weakness,fatigue and dizziness and many more.

hope this helps,have a great day!!

~Pinky~

It causes problems with your nervous system and can also cause you to be lightheaded and dizzy

Which statement best describes the composition of genetic material?

A. Genes and chromosomes are made of DNA
B. Genes and chromosomes are made of RNA
C. Genes are composed of DNA; chromosomes are composed of RNA
D. Genes are composed of RNA; chromosomes are composed of DNA

Answers

71/6 is the answer tho. Or 11.8333... or 11 and 5/6 (I said this first!!)

Btw, the answer is B

Brainliest?? ;D

If you know the answer then answer it please?!?!

Answers

Answer:

When the object absorbs all colour frequencies

Explanation:

Certain materials absorb and reflect specific wavelengths of visible light, which results in objects taking on a certain color to the human eye. When nearly all light is reflected, you see white. When no light is reflected, you see black.

Answer: C

Explanation: Hope this help :D

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