Given the following phylogenetic tree, which evolutionary event occurred most recently?
A.) development of different forms of symmetry.
B.) development of tissues.
C.) each of these traits evolved at the same time.
D.) protostome and deuterostome development.
Answers
Answer:
Option-D
Explanation:
A phylogenetic tree is a diagrammatic representation which is constructed in to show the common ancestors at the base of the tree and the branches represent the new species.
The phylogenetic tree which is constructed based on the traits evolved during evolution is known as a cladogram. In the given question, the cladogram represents the evolution of various groups of the organism from a common ancestor based on the traits evolved.
The trait which was evolved earlier is present at the base like the development of tissues while the most common trait is present at the top which is the development of deuterostome and protostome.
Thus, Option-D is the correct answer.
Related Questions
What is the difference between weather and climate?
Answers
Hope this helped.
(HELP) A region periodically experiences ample rainfall and ideal temperatures. If the
population also experiences little disease at that time, the region is most
likely to have a(n) ___.
a. decreasing food supply
b. decreasing population
c. increasing popularity
d. increasing carrying capacity
Answers
Answer:
b. decreasing population
there are many factors that can decrease the population such as disease and other negative aspects.
Which of the following sampling techniques might a scientist use to count a population of zebras that constantly move around the savanna in search of food?
O
oo
quadrat
direct counting
indirect counting
None of these choices are correct
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All Previous
Answers
How does disease affect blood pressure
Answers
Explanation:
The body has lots of mechanisms that can control the blood pressure, plus, changing the amount of blood the heart pumps, the diameter of the arteries, and volume of blood in the bloodstream. When a disease causes blood pressure to stay high, low, or in between, problems can arise.
True or false determine
Answers
Answer:
False. This is because multiple genotypes can determine a phenotype
Which is a FALSE statement about the blood that leaves the heart through the aorta?
A. It is oxygenated.
B. It contains high levels of sugar.
C. It contains high levels of carbon dioxide.
D. It is transported by the arteries to cells throughout the body.
Answers
hello,
here is your answer:
**********
Statement C is false. The blood that leaves the heart through the aorta is rich in oxygen.
**********
hope this helped,
:)
what is the main factor in the poor health of undeveloped countries?
a. too few doctors
b. more imports than exports
c. industrial pollution
d. infectious disease
Answers
the answer is A.Explanation:
If the eyes and jaws of a corpse appear stiff, about how much time has likely
passed since death?
Answers
Answer:
between 1 and 6 hours and believe the average though is 2-4
Answer:
big gangs
Explanation:
What is the ozone layer?
Why is it important to humans?
Answers
Answer:
The ozone layer absorbs most of the Sun's ultraviolet radiation in the Earth's stratosphere.
Explanation:
It is important to humans because it protects us from getting sun burnt and from our body receiving too much radiation.
Answer:
it protects us from radiation from the sun
Which would a microscope be LEAST useful in studying?
A. spider
B. amoeba
C. bacterium
D. paramecium
Answers
Answer:
A
Explanation:
spiders can be seen with the naked eye
Answer:
A
Explanation:
A spider is large enough to see and observe without a microscope. Bacteria, amoeba and paramecium are all very tiny, and can’t be seen with just our eyes. To see these things, we would need a microscope. Therefore, a microscope would be the least useful when studying A: a spider.
CAN SOMEONE PLEASE HELP >.....< 30 POINTSSSSSSSSSSSSS
How important is it to know the atomic mass? explain
Answers
Answer: Very important
Explanation:
PLEASE HELPP. 20 POINTS
Brandy knows that chromosomes behave differently in meiosis and mitosis. What do chromosomes do in meiosis but not in mitosis?
Each chromosome makes a copy.
The homologous chromosomes form pairs.
Chromosomes line up in the middle of the cell.
Chromosomes condense or shorten up before cell division begins.
Answers
Answer:
It's B
Explanation:
"The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
Answer:
The homologous chromosomes form pairs.
Explanation:
A skateboard manufacturing company has had problems with the wheels on its skateboards cracking and causing injuries. An engineer for the company knows of a material that he thinks will make the skateboards safer. What would be the best step for the engineer to take next?
He should publish a report about the innovation and its impact on public safety.
He should conduct tests using computer models to determine the safety impact.
He should immediately begin producing all skateboards with the new material.
He should convert production of half of the skateboards to use the new material.
Answers
Answer:
Option B, He should conduct tests using computer models to determine the safety impact.
Explanation:
The better performance of material proposed by engineer will be treated as a claim without any proof, if the production of the stake board starts without testing it.
In order to verify his/her statement, the engineer needs to conduct durability and strength test on stake board having the “proposed material” in its structure.
After the test results are obtained, they must be vetted through publication as research paper.
Hence, option B is correct
What are two main sources of genetic material found in viruses?
Answers
Answer:
Most have RNA or DNA as their genetic material, but they also consist of a virion, which has nucleic acid and a shell of protein.
Explanation:
Select all that apply The cellular respiration the mitochondrion serves as?
A. A place for the chemical reaction to occur
B. A place where the enzymes needed for the reaction are located
C. The site for lactic acid fermentation
D. The site for the Krebs cycle.
Answers
Answer:
d. the krebs cycle
Explanation:
Answer:
d. the krebs cycle
Explanation:
The diagram shows a normal red blood cell and a shrunken red blood cell, both of which are in salt water.
In which direction did the water move to make the red blood cell shrink? Why did water move in that direction?
Answers
Remember: Water will always flow to areas to higher solute concentration
Hope that helps! ^_^
Answer:
The red blood cell shrank because water moved out of the cell, which happened because the concentration of salt outside the cell was greater than the concentration of salt inside the cell. Because the salt molecules take up space in the salt water, the concentration of water outside the cell was less than the concentration of water inside the cell. Therefore, water moved out of the cell from the area of high concentration to the area of low concentration, causing the cell to shrink.
Explanation: This was the sample response
Losing 100 orangutans a week is an astonishing number. Within your lifetime they could become extinct in the wild because of human impact. We use palm sugar in many products consumed and other things. Do you feel that it could be said we have a parasitic relationship with orangutans? Defend your answer.
Answers
Answer:
if the orangutans eat the fruits, basically their place of residence is their only means obtaining food and if the human continues to cut trees and destroy forests, the fruits will be lost and the monkeys will starve and thus could become extinct.
Explanation:
Homologous pairs of chromosomes carry genes that control the same inherited traits. These pairs are known as:
A. Gametes
B. Haploids
C. Diploids
D. Tetrads
E. Chiasma
Answers
Answer:
Meiosis produces ________ daughter cells.
A) two haploid
B) two diploid
C) four haploid
D) four diploid
C
At which stage of meiosis are sister chromatids separated from each other?
A) prophase I
B) prophase II
C) anaphase I
D) anaphase II
D
The part of meiosis that is similar to mitosis is ________.
A) meiosis I
B) anaphase I
C) meiosis II
D) interkinesis
C
If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism?
A) 8
B) 16
C) 32
D) 64
B
Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis.
Random alignment leads to new combinations of traits. The chromosomes that were originally inherited by the gamete-producing individual came equally from the egg and the sperm. In metaphase I, the duplicated copies of these maternal and paternal homologous chromosomes line up across the center of the cell to form a tetrad. The orientation of each tetrad is random. There is an equal chance that the maternally derived chromosomes will be facing either pole. The same is true of the paternally derived chromosomes. The alignment should occur differently in almost every meiosis. As the homologous chromosomes are pulled apart in anaphase I, any combination of maternal and paternal chromosomes will move toward each pole. The gametes formed from these two groups of chromosomes will have a mixture of traits from the individual’s parents. Each gamete is unique.
In what ways is meiosis II similar to and different from mitosis of a diploid cell?
The two divisions are similar in that the chromosomes line up along the metaphase plate individually, meaning unpaired with other chromosomes (as in meiosis I). In addition, each chromosome consists of two sister chromatids that will be pulled apart. The two divisions are different because in meiosis II there are half the number of chromosomes that are present in a diploid cell of the same species undergoing mitosis. This is because meiosis I reduced the number of chromosomes to a haploid state.
Explanation:
i had those ecact questions hope this helps plz mrk brainliest
A species is endangered if it_____
no longer exists anywhere on earth
is in danger of becoming extinct
is not native the environment
has high genetic diversity
Answers
Answer:
is in danger of becoming extinct
ASAP WILL GIVE BRAINLEST
Before the discovery of the microscope, Linnaeus could classify organisms only into two kingdoms. More kingdoms were introduced later. What characteristic of science does this show?
It is permanent.
It is changeable.
It is always accurate.
It is based on predictions.
Answers
Answer:
It's changeable
Before the microscope, Linnaeus classified organisms only separated in two kingdoms, while more were introduced later. So, they were only classified in two kingdoms, they can be changed and classified to more than two.
Answer:
It is changeable.
Explanation:
Observations and measurements are both types of _____ that can be
collected during an experiment.
Answers
Answer:
Data
Explanation:
During which process is converted into a sequence amino acks protein production?
Answers
Answer:
Protien Synthesis
Explanation:
The top, exposed layer a has undergone
A. an uncomformity
B. erosion
C. tilting
D. folding
P.S. I NEED THIS LIKE NOW!
I WILL MARK BRAINLIEST
Answers
Gymnosperms and angiosperms, which are seed plants, alternate between ( 2 ) generations.
Gymnosperms are non-flowering plants with (EXPOSED SEEDS)
and angiosperms are flowering plants with . ( PROTECTED SEEDS)
Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces , (MICROSPORES)
and the female reproductive structure produces . (MEGASPORES)
Gametophytes produce (GAMETES)
through the process of . (MITOSIS)
Answers are in the question yw :)
Answers
Answer:
I've corrected the relevant part in the false statement to make it true. Please see below:
Gymnosperms and angiosperms, which are seed plants, alternate between (2) generations.
The statement is true. It alternates between haploid and diploid stages.
Gymnosperms are non-flowering plants with EXPOSED SEEDS and angiosperms are flowering plants with PROTECTED SEEDS.
This statement is also true. The egg is fertilized inside of the flower.
Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces MICROSPORES and the female reproductive structure produces MEGASPORES.
The statement is correct. The male gametophyte will fertilize the female gametophyte, known as the egg, to produce a zygote.
Gametophytes produce GAMETES through the process of MITOSIS.
False. The process of meiosis results in gametes, and not mitosis.
Hope that answers the question, have a great day!
Answer:
answer in picture
Explanation:
How does the Classification system distinguish between organisms?
Answers
Answer:
By organising them into five major kingdoms and further dividing each kingdom into phyla (or divisions), classes, orders, families, genus, and species.
Explanation:
There are five kingdoms:
Monera: bacteria Protista: amoeba, paramecium, euglenaFungi: yeast, rhizopusPlantae: flowering and non-flowering plantsAnimalia: animals (vertebrates and invertebrates)Organisms that share the most similar features are grouped into the same species. Species with similar features fall under the same genus. Several genus make up a family, several families make up an order, several orders make up a class, several classes make up a phylum (or division), and several phyla (or divisions) make up a kingdom.
Note: there are three domains (or superkingdoms): Archea, Bacteria, and Eukarya.
What is a purine and a pyrimidine? Name them.
Answers
Answer:
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
Explanation:
Brad steps onto a bathroom scale, exerting a downward push of 150 pounds. What force doel the scale exert onto Brad?
Answers
Answer:
normal force
Explanation:
If you stand on the edge of a canyon and shout, you will hear an echo. That is,
some time after you shout, you will hear your shout again coming up from the
canyon. Describe what is happening to the sound of your shout to make this
happen.
Answers
Answer:
The soundwaves bounce off the canyon walls and back to you
Because sound waves bounce off surfaces and rebound, the shout will be reflected back to you. Often, music is captured in a space that is soundproof.
What is Sound wave?A sound wave is indeed the pattern of disruption brought on by the movement of energy moving through a medium because it propagates away from the origin of the sound (such as air, water, or any other kind of liquid or solid matter). Pressure waves are produced when an object vibrates, such as a ringing phone, and these waves are known as sound waves.
A sound source, like a vibrating speaker's diaphragm in a stereo, produces the sound waves. Vibrations are produced in the medium surrounding the sound source. The medium continues to vibrate as the source does, and as they do, the vibrations move away from where they originated at the sound's velocity, resulting in the formation of the sound wave.
Thus, the shout will be reflected back to you since sound waves bounce off objects and rebound. Music is frequently recorded in a room that is soundproof.
Learn more about Sound waves, here:
https://brainly.com/question/21995826
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Oxygen released during photosynthesis comes from
A. ATP
B.H2O
C.CO2
D.C6H12O6
Answers
Answer:
B. H2O
Explanation:
Answer:
I believe it is D.
Explanation:
Through chemical reactions, leaves use the carbon and the hydrogen and form a carbohydrate (C₆H₁₂O₆). The extra oxygen is released as a byproduct. This is the oxygen that we use when we breathe.
So-called "dark matter" cannot be directly observed because
A it makes up less than one-tenth of the total mass of the universe
B it gives off no radiation
C it moves too quickly to be captured in space telescope images
Answers
Answer:
B. it gives off no radiation
Explanation:
Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.
Answer:
B
Explanation:
it gives off no radiation
