Answer:
B. Sun.
Explanation:
The carbon cycle can be defined as the cycle in which carbon atoms travel from the atmosphere to earth and back to the atmosphere. As carbon is the source through which all life on earth exists.
The source of the carbon cycle is solar energy. During the process of photosynthesis, it is the sun that plays an integral role in taking carbon dioxide from plants.
Therefore, option B is the correct answer.
Will give brainliest
How does population density/caring capacity?
Answer:
The more the people in a city, the less capacity there is because there needs to be enough space and resources for everyone.
Explanation:
Over time, what will to happen to the populations of light and dark moths on light trees?
Answer:
Explanation:white moths will be spotted easier and killed and the population would drop while the dark moths population will rise
The population of white moths at the light tress will increase over time with the process of natural selection.
The trees are a light color population. Dark moths are unable to camouflage with the tress, while white moths camouflage with the trees.
What happens to white moths?The white and black moths at the tree are an example of a tree ecosystem. The moths are the target for the predators.
The process of natural selection is the evolutionary process with the survival of the fittest. The species that are able to survive in the inappropriate conditions are able to evolve.
In the tree ecosystem, the white moths are camouflaged with the trees. They will not be an easy target for predators. They will survive with the theory of natural selection.
The black moths are not camouflaged with the tree ecosystem. They are easily identified by the predators and are killed.
Thus, white moths are the fittest and with natural selection, they evolve.
Therefore, the population of white moths at the light tress will increase with natural selection.
Learn more about natural selection, here:
https://brainly.com/question/2725702
Why are niches important to
ecosystems?
Answer:
Ecological niches allow species to exist in their environment. Under the right conditions, the species will thrive and play a unique role. Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.
If two species occupied the same niche, they would be competing for the exact same resources. The competitive exclusion principle states that one of the species would drive the other to extinction.
Explanation:
Explain why two siblings except identical twins have the exactly the same alleles
Answer:
having exactly the same DNA sequences, twins start accumulating genetic variation from the earliest stages of development, researchers at Iceland-based company deCODE genetics found, meaning that one twin harbors variants that aren't present in the other.
plant breath through
Answer:
Plants respire through plant pores, called stomata. During respiration and photosynthesis, gases go in and out of the plants through stomata using diffusion, not breathing.
Answer:
respiration
Explanation:
Plants breathe through a process called respiration, where they exchange gases between the outside and the inside of their bodies as a living organism. They breathe through openings called stomata. Photosynthesis makes a plant produce oxygen, but a plant also requires oxygen constantly.
Cross a male TTBb x with a female TtBb. How many gamete combinations do they have?
Answer:
Hope this helps:)
https://adamsbiologyblog.weebly.com/uploads/2/3/0/7/23074860/ch_11_and_14_study_guide_key.pdf
I’ll mark brainiest if your right need ASAP
Answer:
The second one, smooth shape is dominant and wrinkled is recessive
Explanation:
Answer:
The answer would be B
Explanation:
The wrinkly pea is recessive meaning it is less likely to pass on its traits.
What molecule was theorized to give rise to many of the important bio molecules that we see 1 point
are important to life today?
A)protein
B)amonia
C)RNA
D)fats
The polysaccharide that is responsible for the strong structural nature of plant cell walls is
The polysaccharide that is responsible for the strong structural nature of cell walls of plants is cellulose.
The cellulose is an organic molecule that is made up of several units of glucose monomer. The cellulose which make up a large percentage of plant cell walls are composed of a network of several units of glucose monomer that are tightly linked together.
The cellulose, as well as lignin and hemicellulose, which constitutes the tensile fibers in the cell walls of plants, is the polysaccharide responsible for the strong structural nature of plant cell walls.
Learn more about Cellulose here:
https://brainly.com/question/2797330
What would happen if RNA polymerase is unable to bind to the DNA molecule?
A. DNA replication will begin
B. Transcription of proteins would begin
C. Transcription would be blocked and no proteins will be made
D. The repressor protein will begin transcription
Answer: Transcription would be blocked
Explanation:
Answer:
C. Transcription would be blocked and no proteins will be made
Explanation:
If RNA polymerase is unable to bind to the DNA molecule, the transcription would be blocked and no proteins will be made.
why is cloning animals such a high failure rate?
Answer:
The baby not fully developing
The cell cycle is disrupted when there is an abnormal increase in the rate of mitosis. An
abnormal and uncontrolled increase in the rate of mitosis is frequently associated with an
individual developing
A. O a type of cancer.
B.
into two or more organisms.
C.
only one sex cell.
D.
a single set of chromosomes.
Answer:
A
Explanation:
Cancer is the uncontrolled increase of cells, so when the rate of mitosis increases, so does the number of cells. This means A is the answer.
Uncontrolled cell growth is cancer. Gene mutations can increase the pace of cell division or suppress natural mechanisms that keep the body in check, like cell cycle arrest or programmed cell death. Thus, option A is correct.
What results, uncontrolled increase in the rate of mitosis?The cell's size, the presence of neighboring cells, and other chemical stimulators are three of the key elements in mitotic regulation.
Numerous mitogens are involved in regulating mitosis. Therefore, cell size, cell existence, and chemical stimulators are the proper answers.
When cancer cells develop in body tissues, they undergo aberrant cell growth patterns known as hyperplasia and dysplasia.
An increase in the quantity of cells in an organ or tissue that look normal under a microscope is known as hyperplasia.
Therefore, An abnormal and uncontrolled increase in the rate of mitosis is frequently associated with an individual developing cancers.
Learn more about mitosis here:
https://brainly.com/question/6015244
#SPJ6
During meiosis, the genes for eye color and hair color separate in the formation of gametes . This is explained by
A)crossing over B)recombination
C)the law of segregation .
D) the law of independent assortment .
Answer:
d) the laws of independent assortment
Explanation:
just took it
Which of the following living things can have mutations?Plants
Bacteria
Animals
Fungi
Protists
Answer:
Mutation is any change in DNA sequence of an organism. Mutantion can occur in any living organism including plants, animals, fungi, bacteria and protists.
Explanation:
A model showing two possible arrangements of chromosomes during meiosis is shown in Figure 1.Figure 1. Two possible arrangements of chromosomes during meiosis
Which of the following questions about genetic diversity could most appropriately be answered by an analysis of the model in Figure 1?
A) Does crossing-over generate more genetic diversity than the fusion of gametes does?
B) Does DNA methylation prevent independent assortment during metaphase II?
C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?
D) Do daughter cells that are not genetically identical to parent cells produce viable zygotes?
C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?
What is independent assortment?Independent assortment is a mechanism that contributes to genetic diversity during meiosis. It refers to the random alignment and separation of homologous chromosomes during the first meiotic division (meiosis I), which leads to different combinations of chromosomes being passed on to the daughter cells.
This means that each daughter cell will have a unique combination of chromosomes. When the gametes (sperm or egg cells) produced by meiosis fuse during fertilization, they can give rise to offspring with a unique combination of genetic information, further increasing genetic diversity within a population.
Learn more about independent assortment, here:
https://brainly.com/question/28212521
#SPJ2
help with biology pleasee
How do adaptations help an
organism as they struggle for
existence?
Answer:
adaptations are the development of new characteristics that improve the survival and fitness of an organism. these adaptations comes from either mutation or recombination.
those organisms which have adapted can better survive and compete with the other members of population. in case of any disastrous change only those survive which have been adapted all others will die. these adaptation increase their struggle for existence.
Explanation:
what is meaning of pneumonoultramicrosopilicovolcaconiouses
Answer:
a lung disease caused by breathing in very small pieces of ash or dust
Explanation:
Organisms are placed into kingdoms based on...
Their type of
Approximately 75% of the Earth's surface is covered in water. Why is water considered such a precious resource?
Answer:
Water is precious since it is one of the most basic commodities that sustain the life of human beings, animals and plant. Without water, it would be impossible for any form of life to exist in the universe. Close to 75% of the Earth is covered with salt water, while 2% of the surface contains frozen water.
Explanation:
Why is water a precious resource?
It is needed for all living things and must be managed well to ensure we have enough for our needs and to protect our environment. Water is a precious resource. We can't live without it. Clouds formed by this vapor ensure that water falls back down to Earth as rain, sleet, snow or hail.Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water.Learn more:
brainly.com/question/23795105
I’ll mark brainiest if your right need ASAP
Answer:
codominance
Explanation:
Answer:
b option
codominance is correct answer
hope that it will help you
The circled portion of DNA labeled X in the following picture is a
a phosphate group
b sugar
c nucleotide
d aldehyde base
Answer:
a. Phosphate group
Explanation:
The circled portion of the DNA labeled X is ; ( C ) Nucleotide
The Nucleotide in a DNA molecule is the building block of the nucleic acid and it consists of a sugar molecule, A phosphate group ( P ) and nitrogenous base like adenine, cytosine or guanine.
The circled portion covers a nitrogenous base ( cytosine ), a phosphate group and a sugar molecule therefore the circled portion correctly represents a Nucleotide in a DNA molecule.
Hence we can conclude that the circled portion of the DNA is Nucleotide.
Learn more : https://brainly.com/question/24847610
Stage 1: What is a property of a gas? PLEASE HELP!!
A Molecules are separated and far apart and move independently from each other
B Molecules slide past one another
C Molecules vibrate in place
Answer:
A.
Explanation:
B. is liquid and C. is for solids. Gas molecules are relatively very far apart when compared to liquids and solids.
help pls :) i need a unique answer that isn’t plagiarism
I think thats because small animals have small body that can hide in a safe place. Like example if small animals hide go down to the earth, and the meteorite hit the earth, they will safe down to the ground.
Not like larger animals, they can only hide up he surface and when the meteorites came, they died.
Also some small animals such as cockroaches have ability to adapt to changes.
The top two human activities that threaten the habitats of endangered species globally are:
a.) Over-exploitation and agriculture
b.) Urban development and invasion of non-native species
c.) System modification and war
d.) Pollution and climate change
Answer: D
Explanation:
Select all of the following genotype that is/are a heterozygous genotype
A( AA
B( Aa
C( aa
D(Zz
E( zz
Answer:
B, D
Explanation:
Which of these are true?
a) there are many types of ecosystems all over the world.
b) there are only a few types of ecosystems all over the world.
Answer:
a is your answer, I hope it helps!
a!!!!!ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
PLSSS HELPPPPP
What is the difference between a food web and a food chain?
NEED HELP FOR 100 POINTS AND BRAINLIEST PLEASEEE
THE FIRST SLIDE they are refering to is the punnett square and
punnett square = from left to right and top to bottom is BB, bB in the top and bottom is Bb and bb
B = brown, b = blonde)
Answer:
this is assuming brown eyes are dominant
6a 9/16
b.3/16
c 3/16
d. 1/16
Explanation: there might be an easy way to calculate it but I draw it out and use the dominance and lettering and just count I used slide 5 as a starting point
to do more than this would require seeing the square on slide 1 they are referring to as it is specific to 2 parents
4. a Bb and bb
b. bb and bb
5. BBEE BBEe BbEEBbEe
BBEe BBee BbEe Bbee
BbEE BbEe bbEE bbEe
BbEe Bbee bbEe bbee
2 a Bb
b Brown hair
c. Bb and brown hair
d. blonde hair
e. BB
3. A50%
c. 50%
25%
75%
25%
In general, when performing spread plates, __________
mL of cell suspension is added to the plate to prevent the formation of a microbial ______________.
Adding more than 1 mL of cell suspension to an agar plate will result in a ____________.
Adding less than 1 mL of cell suspension to an agar plate will result in a ____________.
Answer:
a) 0.1 mL
b) contamination
c) clumping of colonies
d) Uneven colonies
Explanation:
In general, when performing spread plates, 0.1 mL
mL of cell suspension is added to the plate to prevent the formation of a microbial contamination
Adding more than 1 mL of cell suspension to an agar plate will result in a clumping of colonies.
Adding less than 1 mL of cell suspension to an agar plate will result in a Uneven colonies
In general, when performing spread plates, 0.1mL of cell
suspension is added to the plate to prevent the formation of a
microbial contamination.
Adding more than 1 mL of cell suspension to an agar plate will
result in a clumping of colonies. Adding less than 1 mL of cell
suspension to an agar plate will result in an uneven colony.
What is a Colony?
These contain two or more conspecific individuals living in close
association with one another.
The procedures given above must be adhered to in the
preparation of cell cultures in the laboratory.
Read more about Colony here https://brainly.com/question/22087997