Which form of evidence for evolution was not available to Darwin in 1858?
A. The fossil record
B. Comparative anatomy
OC. DNA evidence
D. Artificial selection

Answers

Answer 1
I believe it is B.
Don’t hate me if I am wrong :,)
Answer 2
Pretty sure it’s B or so I think it is

Related Questions

The peace treaty which ended French control over Canada in 1763 was signed in:

Answers

Answer:

February 10, 1763.

Explanation:

How are humans causing a decrease in species richness in certain environments?

Answers

Answer:

by being wasteful

Explanation:

Answer:

we use things we don't need to or misuse things we shouldn't? hoomans r bad

Explanation:

Explain the basic process of transcription. Include a description of the major intracellular structures involved.

Answers

Answer:

Transcription is the cellular process of RNA synthesis by decoding the information contained in a DNA fragment  

Explanation:

Transcription is the process by which the genetic information contained in a fragment of DNA called 'gene' is used as a template to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently used to synthesize a protein by the process of translation. In eukaryotic organisms, transcription involves a DNA template strand, which contains both non-coding (i.e., promoter, introns) and conding (i.e, exons) regions, and an RNA polymerase that adds nucleotides to the growing RNA strand using as a template a DNA strand. Both in prokaryotes and eukaryotes, transcription occurs in three basic steps: 1-initiation, where DNA strands separate, 2- elongation, where the RNA polymerase moves on the DNA sequence to synthesize an RNA molecule, and 3-termination, where transcription terminates depending on the sequence in the RNA (eukaryotic transcription has an additional step known as RNA processing).

Order the following words for Transcription
1 pre-mRNA
2.Gene
3 DNA
4mRNA

Answers

Answer:

2. Gene

3. DNA

1. Pre-mRNA

4. mRNA

Explanation:

Transcription is the first step of gene expression in which a DNA molecule serves as template for the synthesis of mRNA. In the process of transcription, a Gene present on the DNA molecule is transcribed by RNA polymerase using complementary base pairing rule.

After the gene is transcribed, a pre-mRNA is formed. This mRNA is so called because it is immature. The pre-mRNA undergoes processing such as polyadenylation, splicing etc. to become a mRNA.

Hence, based on this, the order is:

Gene → DNA → pre-mRNA → mRNA

Scientists have proposed more than two dozen ways to define species. One commonly used definition, called the biological species concept, holds that populations belong to the same species if they can contribute genes to a common gene pool. Reproductive barriers block gene flow between different species. Gene flow between populations tends to hold the gene pool of a species together. Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species concept. For each characteristic, identify the a

Answers

Complete question:

Scientists have proposed more than two dozen ways to define species. One commonly used definition, called the biological species concept, holds that populations belong to the same species if they can contribute genes to a common gene pool. Reproductive barriers block gene flow between different species. Gene flow between populations tends to hold the gene pool of a species together.

Part A - Comparing species definitions

Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept.

Drag each characteristic to the appropriate bin based on the species concept(s) to which it applies → You will find this in the attached files

Answer:

Not applicable for extinct species → Biological Based on evolutionary history → Phylogenetic  Relies on similarities in structure → Morphological Accommodates asexual reproduction / Species acceptance criteria can be subjective → Morphological and PhylogeneticUsed by scientists in classification → Morphological, Phylogenetic, and Biological

Explanation:  

The biological concept states that species are population groups that -in a real or potential way- can mate and reproduce, but are reproductively isolated from other groups.  

Individuals belonging to a species cannot reproduce with members of other species.  

This biological concept has limitations. Its application might present difficulties in concern with asexual reproduction species, such as bacteria, rotifer, cnidarians, plants, and etcetera.  

Besides, this concept cannot be applied to the past because it is difficult to deduce reproductive capability between extinct species.  

Finally, this concept is not adequate concerning hybridization zones, something to be expected considering evolutionary processes. This is the reason why it has been less accepted by botanists, as some plant species hybridize with other species.  

The phylogenetic species concept defines species on a determined time and through time, and these are the horizontal and vertical species concepts, respectively. The species group is considered to be the less inclusive monophyletic group.

According to the phylogenetic concept, a species is a monophyletic group whose organisms share synapomorphies.

The establishment of species relies on molecular markers.

The morphological species concept defines species according to the shared morphological characteristics shared by all the members of the species. It is a descriptive method to separate species.

When a group differs considerably at a morphological level from another group, it is defined as a different species.

Some limitations might emerge from this species concept. It does not consider variability among individuals,

Individuals of the same species might be polymorphic, exhibiting morphological differences between organisms. These individuals would be considered to be different species following the morphological concept. Some different species might be morphologically similar, despite being different. These species might be considered as one following the morphological concept.

In which layer of the atmosphere does most condensation occur?
A) troposphere B) stratosphere C) ozone layer D) mesosphere E) ionosphere

Answers

Answer:

condensation occurs in the troposphere

The two organ systems involved in this blood vessel constriction are the...pic attached. NO LINK ANSWERS PLS :)

Answers

It’s cardiovascular and circulatory. Sorry if its wrong :(. Have a nice day

What are some of the ways that pollen can travel from one flower to another?

Answers

Answer:

pollinators + the wind

Explanation:

pollinators is probably the best answer here... pollinators are bugs like bees and butterflies that spread the pollen from one plant to another.

Answer:

Flowers must rely on vectors to move pollen. These vectors can include wind, water, birds, insects, butterflies, bats, and other animals that visit flowers. We call animals or insects that transfer pollen from plant to plant “pollinators”.

Explanation:

Help please someone please what is the answer

Answers

answer:
false

explanation:
acid rain is not acid precipitation
acid rain contains acidic substances which are dispersed into the atmosphere
while acid precipitation involves sleet, snow, fog and cloud vapor
acid rain is limited to a period of a year but acid precipitation happens all year
but it does cause chemical pollution due to the sulfur dioxide and nitrogen oxides are released in the air.
Answer: False


Explanation: falseeeeee


The theory that evolution happens according to a slow, steady change over time is known as A coevolution B extended evolution C gradualism D punctuated equilibrium

Answers

The answer is *C. is a slow, gradual change over time*.

DNA: TAC GCG TAC CGG ATC
mRNA:
Amino acids: HELP[

Answers

Answer:

AUG CGC AUG GCC UAG

Explanation:

Replace thymine (T) with uracil (U)

Why do some plants in the rainforest have bright flowers and grow close to the ground? O to repel any extra rainfall O to get as much sunlight on their leaves as possible O to keep animals and people away from them O to attract birds and insects for pollination​

Answers

To attract birds and insects for pollination

What percentage of the global water supply is fresh water? 6 percent 35 percent 1 percent 10 percent

Answers

Answer: i know it woluld be 48 because you add all the numnbers that you provided then you subtract it from 100 and get 48%

Explanation:

pls mark brainliest

Help please true or false

Answers

Answer:

false

Explanation:

because it's false

Answer:

The answer correct false called photosynthesis

If a sample of DNA is 21% adenine, it would be % cytosine.

Answers

Answer: 28%

Explanation:

Use Chargaff's rules which states that 100% is total of all 4 bases and Adenine and Thymine need to have 1:1 ratio and Cytosine and Guanine need to have 1:1 ratio

21% Adenine and 21% Thymine

21% + 21% = 42 100 - 42 = 56 56 / 2 = 28

28% Cytosine and 28% Guanine

Which of the following correctly describes the effect of endocrine disrupters on humans?

a.
They destroy normal human hormones.
b.
They destroy cells that hormones would normally target.
c.
They prevent hormones from binding to the cells they target.
d.
They destroy endocrine glands that would normally release necessary hormones.

Answers

Answer: b

Explanation:

How do laws reduce air pollution?

Answers

Answer:

Laws reduce air pollution by a number of things, this could be by issuing a fine of about £20 or above. This is the most common way yet im sure in more serious cases prison sentences are issued.

What control mechanisms might prevent cells from producing too much of the amino acid glycine?

Answers

Hdbdhxbxudbdbdhxbcjxnxndjcubfbfjfbfhcbcjcndkdlmdnkdxjcjcicjdnddkdkdkcncjcndndjdkdncjicjcjcjccfjxjcncncncncxnxjxjxjxn

HELP ASAP!!!
What concept does Hubble's Law most concern?
A. energy lost over time across the universe
B. growing distance between galaxies
C. how stars recycle energy and matter
D. how the universe will eventually end

Answers

B they observed physical cosmology the galaxy are moving away from earth at speed proportion to their distance

Hubble's Law most concern with growing distance between galaxies. Thus option B is correct.

What is Hubble's Law ?

Hubble’s law refers to the observation in physical cosmology where the movement of galaxies from the Earth at a speed that are proportional to their distance.

The velocity of the galaxy which is called as the redshift.

This laws study physical cosmology and is also known as Hubble-Lemaitre law.

After measuring recession velocity one can determine the distance of the galaxy from us by using Hubble’s equation.

Some limitations are; due to intrinsic motion of galaxies, observed velocity gets influenced and Galaxy orbit due to  gravitational movements.

Hubble constant is another unit of measurement, which is used for description of the expansion of the universe. It  is 160 km/s per million-light-years.

Thus option B is correct.

Learn more about Hubble's Law , here:

https://brainly.com/question/10181633

#SPJ6

Two distinct bands appear in a single lane at the completion of an SDS-PAGE analysis of an unknown protein. Select one: a. These bands represent two subunits of a homodimer. b. Each band represents a different sized subunit of a multimeric protein. c. Each band represents a protein subunit with different charge to mass ratio. d. These bands represent two subunits of a heterodimer. e. These bands represent two separate subunits of identical size.

Answers

Answer:

b. Each band represents a different-sized subunit of a multimeric protein.

Explanation:

SDS-PAGE analysis allows the separation and discrimination of proteins according to their molecular weight. The technique separates proteins in an electromagnetic field.

The SDS-PAGE technique makes proteins move in solid support -gel- by the action of the electric field. The distance reached by each protein is proportional to their molecular weight. The protein separation from a mixture results in bands that reflect their size.

SDS is a detergent that denaturalizes the protein and sets a relation charge size, such as that the motion of the protein in the gel is proportional to its weight. The bigger the protein is, the stronger interaction with the polyacrylamide gel there will be.  The speed of displacement in the electromagnetic field is inversely proportional to the protein size.

What percentage of DNA comes from
each parent during sexual reproduction?

Answers

Answer:

50 %

Explanation:

So, each sperm contains 50% of the father's genes and each egg contains 50% of the mother's genes. This makes gametes different from other cells in the body

Answer:

50 from each parent is the correct answer

A dog, Skipper, is roaming around the neighborhood. Skipper passes one of
his favorite spots and lifts his leg to urinate on a fire hydrant. Three
systems at work are:

Answers

Answer:

5. Muscular

6. Skeletal

12.Excretory

Explanation:

He lifts his leg, meaning his using skeletal and he is removing waste from his body using muscular & excretory.

Anyways, just wanted to let you I think you're in my class. We go to the same school. Have a great summer break !

type fghj in 3/7 block so i know you saw my message :)

if you had $5000 what would you do with it and why?

Answers

Answer:

pay off student loans

Explanation:

Answer:

I know some people are against this but I would get myself some hunting gear, put some money away for further things, get my favorite snacks, save for Christmas, and then I would put the rest towards my family's medical needs because my family means the world to me.

Read the sentence below and answer the question that follows.
A 47-year study by scientists in Great Britain revealed that the Parus major is laying eggs approximately two weeks
earlier.
Which led the Parus major to change its behavior?
A) It is making the most of the availability of seasonal food.
B) It is using leaves and other vegetation that is now sprouting earlier.
C) It is arriving from migration earlier due to warmer weather.
D) Its individual adaptability from year to year has been studied.
E) Its nests need the camouflage offered by trees with leaves.

Answers

Answer:D

Explanation:

b. Earth's thermohaline circulation moves heat around the planet, as can be seen by the warmer
climate in England due to the Gulf Stream. (2 points)
True or false ?

Answers

The answer is to that question is false

In what cultures is it commonly acceptable for
pregnant women to drink raw milk and
eat unpasteurized cheeses during pregnancy?
Check all that apply.
European cultures
South Asian cultures
American cultures
Hispanic cultures

Answers

Answer:

A. European Culture B. South Asian Cultures

Explanation:

Correct on Edge.

how do i get rid of hicups?????

Answers

Answer:

just hold your breath for as long as you can

Explanation:

Answer:

Explanation:

Hold your breath and swallow three times.

Breathe into a paper bag but stop before you get lightheaded!

Drink a glass of water quickly.

Swallow a teaspoon of sugar.

Pull on your tongue.

Gargle with water.

i just asked go ogle :D

What are the four different types of deserts?

Answers

Answer:

Explanation:

Name Type of Desert Location

Antarctic Polar Antarctica

Arctic Polar Alaska, Canada, Greenland, Iceland

Sahara Subtropical Northern Africa

Answer:

1) hot and dry deserts or subtropical deserts

2) semi-arid deserts

3) coastal deserts

4) cold (or polar) deserts

what did I do wrong?
what is the difference between elevation and altitude?

Answers

Elevation is measured from the ground and up. Altitude is measured from sea level. The ground isn’t always at sea level, which causes the difference.

What happens when an organism is able to acquire all the necessary resources it needs to survive over time?

Answers

Answer:

It will lead to extension.

Explanation:

If something is a need for an organism, and that resource is not replenished over time the organism will go extinct.

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