Answer:
evolution
Explanation:
this reflects the adaptations of organism to their changing environments
The process in which populations change over time is evolution, the change in the characteristics of a species over several generations and relies on the process of natural selection.
What is natural selection?
Natural selection is the method through which denizens of living organisms adapt and modify. peoples in a population are inherently variable, meaning that they are all various in some ways.
This divergence means that some people have traits nicely suited to the environment than others.
Thus, The process in which populations change over time is evolution,
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The only difference in the chemical structure of DNA between various organisms is---
the number of nucleotides present
the order of base pairs
the variety of bases
the number of bases in a codon
Answer: the order of base pairs
Explanation: i took this quiz lol
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The only difference in the chemical structure of DNA between various organisms is the order of base pairs that is present in the second option. The order of base pairs is different in different organisms.
What is the base-pair role present in the DNA?There are two DNA strands in double-helical DNA that are linked together by hydrogen bonds, such as adenine's double hydrogen bond with thymine and guanine's triple bond with cytosine. All the organisms that belong to different species have the same bases and same nucleotides, such as ATP, GTP, CTP, and TTP, but the base pair order is different, and that makes them unique. The gene having some specific sequences in an animal is different from the gene of another animal, and this is due to the various base pairs in the DNA.
Hence, the only difference in the chemical structure of DNA between various organisms is the order of base pairs that is present in the second option.
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Which of the following choices contains two ways in which carbon enters the atmosphere?
A. Erosion and transpiration
B. Volcanic Activity and Photosynthesis
C. Human Activity and Nitrogen-Fixing Bacteria
D. Emissions from Factories and Respiration
Answer:
d. or c. is what I think I limited your options
Please answer the photo is above thank you.
Answer: the first box is recessive, other three are dominant. the first and third of the second row are heterogeneous and the second and fourth are homogeneous. first and fourth one of the third row are homogeneous dominant, the second one is heterogeneous, the third one is homogeneous recessive. of the fourth row, it goes; purple, purple and white, and white. for the last question the possible genotypes are BB, BB on top, Bb, Bb, on bottom. The phenotype can be black and grey or black and black and white spotted. the percent chance is 50% for both and 1:1
Explanation:
Do you feel stem cell research is important? Explain.
4 sentences.
Given their unique regenerative abilities, stem cells offer new potentials for treating diseases such as diabetes, and heart disease. Research on stem cells continues to advance knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms.
Yes. Without stem cell research there would be alot more sick people. There would be alot more sick people because Stem-cell research is an area of research that studies the properties of stem cells and their potential use in medicine. As stem cells are the source of all tissues, understanding their properties helps in our understanding of the healthy and diseased body's developmental and homeostasis. Stem cells originate from two main sources: adult body tissues and embryos.
could I plz get brainliest
Poor land management can threaten an ecosystem's {Blank}
though habitat destruction, population
fragmentation, and resource loss, reducing its number of
species.
Answer:
Biodiversity
Explanation:
Given that Biodiversity is a biological term that describes the varieties and healthy nature of an ecosystem. It shows the presence of various species of plants and animals in an ecosystem. It can be affected by climatic changes or human interactions that are considered destructive.
Hence, Poor land management can threaten an ecosystem's BIODIVERSITY through habitat destruction, population fragmentation, and resource loss, reducing its number of species.
Where can you find the human sex chromosomes in a karyotype
Answer: According to international conventions, human autosomes, or non-sex chromosomes, are numbered from 1 to 22, in descending order by size, with the exceptions of chromosomes 21 and 22, the former actually being the smallest autosome. The sex chromosomes are generally placed at the end of a karyogram.
its not that hard 20 points! im just too lazy
Ferns have _____.
A.nonvascular tissue and no seeds
B.vascular tissue and no seeds
C.nonvascular tissue and seeds
D.vascular tissue and seeds
Answer:
I think the answer is gonna be b
Answer:
B
Explanation:
it is correct because I did it
Which statement best describes the result of meiosis?
A.
It produces body cells.
B.
It causes alleles to deform.
C.
It prevents genetic mutation.
D.
It produces reproductive cells.
Answer: The correct answer is D. It produces reproductive cells.
Explanation: Confirmed correct.
The statement that best describes the result of meiosis is it produces reproductive cells. The correct option is D.
What is meiosis?Meiosis is a reduction division, thus the sex cells that create the gametes will do so while going through meiosis. The number of chromosomes in the gametes will be halved from that of an adult human.
A single cell splits twice during the meiotic process, resulting in four cells with half the original genetic material. These cells—sperm in men and eggs in women—are our sex cells.
Four haploid daughter cells with chromosomal variations from the original parent cell and half as many chromosomes as the original parent cell are the result of meiosis (diploid).
Therefore, the correct option is D. It produces reproductive cells.
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Which of the following is a genetic trait?
Cooking ability, a trait a person has from birth and is determined by the genes of the person’s parents.,
Music taste, a trait that a person learns from his or her environment and is programmed into the brain forever.,
Hair color, a trait found in genes inside chromosomes, which are inside the nucleus of a person’s cells.,
Knowing one’s name, a trait a person gets from his or her parents and can never be forgotten.
AHhhhhhhh- Help please A S A P
heat flows from matter with __________________ temperature to matter with ____________________ temperature
Answer:
warmer to cooler
Explanation:
Heat flows naturally from a warmer object (higher energy) to a cooler one (lower energy). As you add thermal energy to an object its temperature will increase. Name two factors that will affect how much the temperature of a substance will change.
Please help quickly thanks
Answer:
the bottom one condensation
please help!! which diagram best illustrates the relationship between the number of cells,tissues and organs in a complex multicellular organism
Answer:
D
Explanation:
...................
Explain convection in earths mantle
Answer:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Explanation:
A flower species releases a strong odor that protects the flower by keeping predators away. The odor also prevents pollinators from visiting the flower. The flower is able to survive, but cannot reproduce. What is the relative fitness of this flower?
A. 50%
B.100%
C.75%
D.0%
Answer:A
Explanation:Because its a guess!
In which layer is lithification most likely to accur?
Answer:
Subsoil is the most likely layer in which lithification is to occur.
Which breed of dog is most likely to be trained as a
service animal instead of being just a pet?
Australian Shepard
O Chihuahua
Beagle
O Blue Tick Hound
Answer:
I would say an australian shephard
Explanation:
Plz help im desprate
Please help me out guys it;s pretty simple
Answer:
B.
Explanation:
Please HELP :((
In Rabbits, black fur (B) is dominant to white (b), and long ears (E) are dominant to short ears (e). What is the expected phenotypic ratio of the offspring of a BBee x bbEE cross if these alleles sort independently?
Answer:
A. 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
Explanation:
This question is a typical dihybrid cross i.e. involving two genes in rabbits. One coding for fur color and the other for ear length. The allele for black fur (B) is dominant to allele for white fur (b) and allele for long ear (E) is dominant to alelle for short ear (e).
In this question, a cross between two rabbits with genotypes: BBee x bbEE is performed. The following combination of gametes will be produced by each rabbit:
BBee - Be, Be, Be, and Be
bbEE - bE, bE, bE, and bE
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
All BbEe offsprings, which have a black fur and long ear phenotype.
Hence, the phenotypic ratio is 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
What are some advantages of asexual reproduction when compared to sexual reproduction? (In your own words please for brainliest!!)
Answer And Explanation:
The advantages of asexual reproduction compared to sexual reproduction include the population being able to increase rapidly when the conditions are in their favour, only one parent is needed, it is more time and energy-efficient due to not needing a mate and it is faster than sexual reproduction.
Arecent study has shown an increase in the number of predators in an ecosystem. Which of the following is a possible
cause for the growth?
A) a decrease in the land space available
B) an increase in the population of prey it feeds on
C) a decrease in the biodiversity of the ecosystem
D) an increase in the number of predators that feed on it
E) an increase in the plant life in the ecosystem
PLS HELP ASAP
Answer:
The correct answer would be - B) an increase in the population of prey it feeds on.
Explanation:
In an ecosystem, if there is an increase in the number of predators there are several possible conditions behind it. The most suitable and important factor that can lead to this is an increase of prey they rely on.
If there is an increase in numbers of prey in the particular ecosystem then there would be more food and resources for predators which help in growing the development of predators.
Answer:
The correct answer is D. on EDGE
Explanation:
Describe the relationship between ATP and ADP molecules
Answer:
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. ... When it's run down, it's ADP.
Hope this helped!!
What do chloroplasts and mitochondria have in comman? Choose the correct answer.
Answer:
Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell.
Explanation:
Where does the carbon used to make glucose come from?
.
Answer:
answer should be "carbon dioxide"
sorry if I’m wrong! Hope it helped
Fruit flies have 3 chromosomes plus sex chromosomes (X and Y). Mutations occurred within four different cells of an
individual female fruit fly as shown in the table below.
Which of these mutations could be passed on to the offspring of this fruit fly?
Group of answer choices
yellow body
leg-shaped antennae
curly wings
absent eyes
Answer:
Its either curly wings or yellow body
Explanation:
Which statement best describes how the environment influences the traits of an individual?
The environment influences the gene expression which can change the genotype.
The environment influences the gene expression which can change the phenotype.
The environment influences only external factors.
The environment influences only internal factors.
Answer: The environment influences the gene expression which can change the phenotype.
Explanation: TRUST
The environment influences the gene expression which can change the genotype. The correct option is A.
What is gene expression?The methodology by which a gene in a cell is activated to produce RNA and proteins.
Gene expression can be assessed by examining the RNA, the protein produced from the RNA, or whatever the protein does in the cell.
The environment can impact gene expression in a life form, along with the outer environment in which the species is positioned or evolves, as well as the organism's internal world, which encompasses factors such as hormones and metabolism.
Several factors influence gene expression, which would include molecules within the cell, mutations that cause dominant damaging consequences and haploinsufficiency, signaling molecules from neighboring cells and the environment, and epistasis.
The environment influences an individual's genotype but not his or her phenotype.
Thus, the correct option is A.
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Question 1
Which of the students' observations will be most helpful in classifying a cell as either prokaryotic or eukaryotic?
Answer:
Explanation:
I can't answer this because there are no options given
The basis for the energy in an ecosystem is provided by?
Answer:
Producers
Explanation:
Answer:
Producers
Explanation: Hope this helps!
Give examples to show how human biological traits and culture are related.
Answer:
gracias por los puntos
Explanation: