Debido a que el hidrógeno molecular expulsado por los volcanes se difundió en el espacio, la Tierra ganó una atmósfera rica en oxígeno. Otra posibilidad es que el oxígeno se acumule debido a una disminución de gases – como el hidrógeno – que reaccionan con y por lo tanto "absorben" el oxígeno.
Explanation:
Answer: Some authors suggest the rise in oxygen about 2,470 – 2,450 million years ago was related to extensive volcanic activity,
Explanation:
The first step of the design process is to
A.
form a prediction about the design.
B.
study the uses of technologies over the history of the Earth.
C.
identify a problem that needs to be solved.
D.
copy the design of the most successful technology of the day.
Answer::::::::::::::::::::C
A common compound both necessary for photosynthesis and produced by photosynthesis.
A fox and an owl both eat forest mice. Which type of relationship does the fox have with the owl?
commensalism
predation
parasitism
competition
mutualism
answer plz
Answer:
The answer is competition.
Explanation:
Competition is a type of relationship where a negative interaction occurs among organisms whenever two or more organisms require the same limited resource.
do DNA and RNA have the same phosphate group?
Answer: yes they do
Explanation: In a cell, a nucleotide about to be added to the end of a polynucleotide chain will bear a series of three phosphate groups. When the nucleotide joins the growing DNA or RNA chain, it loses two phosphate groups. So, in a chain of DNA or RNA, each nucleotide has just one phosphate group.
three major functions of leaf.
Answer:
Photosynthesis.
Transpiration.
Photosynthesis.
Explanation:
What kinds of land uses are around
your school? Write down each type of land use.
Then describe how one of these land uses might
affect natural systems.
Answer:
The grass in the field How this effects is because its a comfertable place for alot of things to live
Explanation:
What is the
current focus of conservation
biologists worldwide?
PLZ EXPLAIN, AND I NEED HELP NOW!
If an organism's body cells have 12 chromosomes, how many chromosomes will sex cells have? Explain.
Answer:
6 chromosomes
Explanation:
Answer:
The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes.
Explanation:
The diploid organism has all chromosomes in pairs, one chromosome inherited from male parent & another chromosome in the pair is inherited from the female parent. If an organism has 12 chromosomes, it has 6 different types of chromosomes, differing from one another in length, the position of centromeres and genes present on these. Six different types of chromosomes constitute a haploid set of chromosomes. Two chromosomes of the same type are called homologous chromosomes and these constitute a homologous pair. The cells producing sex cells or gametes undergo meiosis (reduction division) so that each gamete contains only one chromosome of a homologous pair. The gametes are haploid, having half the number of cells as compared to somatic cells.
Hope this helps have a great day/night! :}
Parallel Flow
Which filter regions have a concentration gradient
between the blood and dialysate?
Check all that apply.
1
11
IN
V
Submit
The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
The filter regions ( I and II ) both have concentration gradients because of the concentration difference between the Urea contained in the blood and the Urea concentration found in dialysis
The difference in concentration gradients of the filter regions between the blood and dialysate leads to the diffusion of Urea in blood into the dialysis fluid with a lower concentration of Urea.
Hence we can conclude that The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
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Although some data related to your question is missing attached below is the missing data
Which plant parts are in leaves? (Select all that apply.)
1. endosperm
2. xylem
3. root hairs
4. phloem
Answer:
4. Phloem
Explanation:
Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers, and phloem parenchyma cells. - Britannica
Hope this helps! Have an Amazing day!!
Consider the path that blood takes through the heart and put the following locations in the correct order. The starting point is blood returning to the heart from
systemic (body) circulation.
1. out to the lungs
2. right atrium
3. left ventricle
4. back from the lungs
5. left atrium
6. right ventricle
7. aorta out to systemic (body) circulation
O A6, 2, 1,4,3,5,7
B.2.5, 1,4,6,3,7
C.2.6,1.4,5, 3, 7
O 0.5,3, 1, 4, 2, 6,7
Answer:
C
Explanation:
If a cell were a city, ribosomes can be thought of as a... A. police department. B. janitor. C. factory .
Answer:
c. factory
Explanation:
might be wrong but if not congrats I guess
Answer: Police department.
Explanation:
Ribosomes have two main functions decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits.
which of the following is most likely to occur when a barrier develops between two populations of the same species?
1. gene flow between the groups will increase due to more diversity between them
2. the species will become more distinct from each other
3. both groups will go extinct because there are not enough individuals to support them
4. individuals will develop adaptations that allow them to rejoin the other population
Answer:
The answer is 2
Explanation:
If the populations are separated from each other, they will start to be more diverse.
Based on the data presented in the Venn Diagram, circle B MOST LIKELY represents the
phase.
A)
gas
B)
liquid
C)
plasma
D)
solid
Answer:
The answer is B) Liquid
Explanation:
When penicillin was first introduced, it was very effective in destroying most
of the bacteria that cause gonorrhea. Today, certain varieties of this
bacterium are resistant to penicillin. Which statement best explains the
appearance of these resistant varieties?
A. Penicillin stimulated the bacteria to become resistant, and this
resistance was passed to the offspring.
B. Penicillin today is not as strong as the penicillin used when it was first
introduced.
C. Penicillin stimulated the production of antigens in the resistant
bacteria.
D. Penicillin killed the susceptible bacteria, while naturally resistant
varieties survived and reproduced.
Answer:
D
Explanation:
D is the correct answer. The rest do not represent evolution / natural selection well, and penicillin's strength has remained the same.
Answer:
D
Explanation:
D is the correct anwser
What is the steps to create a slide show in Tux Paint?
Answer:
Step 1: Click the Open tool on the toolbar. A list of saved pictures appears. Step 2: Click the Slides button present at the lower left of the list. Step 3: Click the desired pictures one by one in the order in which you want them to appear in the slide show.Explanation:
hope its help
Drag each tile to the correct location.
Identify each process as a carbon source or a carbon sink.
Carbon sources are any natural or artificial production site of carbon and/or any chemical compounds composed of carbon, such as carbon dioxide and methane.
Carbon source: Combustion,Respiration.
A carbon sink absorbs carbon dioxide from the atmosphere.
Carbon sink: Photosyntheis,Ocean absorption,Fossilization.
Which one is carbon sink or carbon source?1. Photosyntheis: Forests are typically carbon sinks, places that absorb more carbon than they release. They continually take carbon out of the atmosphere through the process of photosynthesis.
2. Ocean absorption: Phytoplankton are the main reason the ocean is one of the biggest carbon sinks. These microscopic marine algae and bacteria play a impotant role in carbon cycle - absorbing carbon.
3. Fossilization: Absorb CO2.
4. Combustion: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat and CO2 in environment.
5. Respiration: The respiratory system, with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in the lungs and within the cells and gives out CO2 in atmosphere.
Thus, we can conclude that
carbon sink: Photosyntheis,Ocean absorption,Fossilization.
carbon source:Combustion,Respiration.
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What is the cause and effect relationship in populations?
Answer: The cause can be something that causes the problem and the effect is what effected it. If something caused the population to go down the effect would be death rate or birth rate.
Hope this helps!
Answer:
the positive effect call relationship in population is the amount of income food income and growth of the community around this and Community Wellness
What is the platform of ADNOC called?
(Please dont comment files)
Answer: ADNOC Hosts Youth Circle at its Umm Lulu Offshore Platform as it Focuses on the Future - Abu Dhabi National Oil Company.
Explanation: Hope that was helpful! :D
Genetic mutation which can lead to diversity between organisms can be caused by
Answer:
DNA
Explanation:
Mutations are changes to an organisms DNA that creates diversity within a population by introducing new alleles. Some mutations are harmful and are quickly eliminated from the population by natural selection harmful mutations prevent organisms from reaching sexual maturity and reproducing.
How is the Grants' work similar to Darwins?
Answer:
The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. ... (The only other finch on the island is the cactus finch.)
Explanation:
Will give brainliest to people that help me with these
Answer:
here you go hope it helps you with your question
Explanation:
because nitrogen is required for growth it is considered an essential nitrate so true
converting nitrogen from a gas to a useable form by bacteria is denitrification is true two
the movement of chemicals on a global scale from abiotic through biotic parts of the environment is a lithospheric process true
Before cellular respiration, glucose must be broken down by the process of?
Answer:
Cellular respiration: process of turning glucose into energy In the form of ATP. Before cellular respiration can begin, glucose must be refined into a form that is usable by the mitochondrion. Each 6 carbon molecule of glucose is converted to two 3 carbon molecules of pyruvic acid in the process of glycolysis.
Explanation:
The diffrence between prokaryotic and eukaryotic organism
Answer:
Explanation:
prokaryotic organism does not have nuclear membrane.
eukaryotic organism have nuclear membrane.
What is the process consumers use to release energy from food?
Answer:
Primary producers—plants, algae, and bacteria—make up the base of the pyramid, the first trophic level. Through a process called photosynthesis, producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
Explanation:
Primary producers—plants, algae, and bacteria—make up the base of the pyramid, the first trophic producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
What is photosynthesis?
Photosynthesis is the process whereby plants manufacture their own food with the use of sunlight and carbon dioxide.
When this occurs, (energy in form of glucose) and oxygen are produced. The oxygen is released for animals to use.
Thus, producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
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Four children in a family have four different blood types. If the father has
type A blood, which blood genotype best represents the mother?
What are forms of cell regulation
Answer:
cyclins. cyclins are among the most important core cell cycle regulators
22. An individual who participates in a long-distance run on a hot day will produce large
quantities of sweat. As a result of the excessive sweating, the amount of urine
produced by the kidneys will change.
How will the kidneys respond to help the individual's body maintain homeostasis?
The kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
What is Homeostasis?
Homeostasis refers to an organism's ability to regulate various physiological processes to keep internal states steady and balanced.
When an individual is running long-distance on a hot day will produce a large quantity of sweat. The kidney plays an important role here to retain the amount of urine and excessive sweat is produced to maintain the temperature of the body as well as the pH of the blood.
Therefore, the kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
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what are 5 examples that the muscles are working in pairs
Answer:
Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens.
...
Antagonistic muscle pairs.
Biceps Triceps
Hamstrings Quadriceps
Gluteus maximus Hip flexors
Gastrocnemius Tibialis anterior
Pectoralis major Latissimus dorsi
Answer:
Muscles that work like this are called antagonistic pairs.In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist.For example, when you perform a bicep curl, the biceps will be the agonist as it contracts to produce the movement, while the triceps will be the antagonist as it relaxes to allow the movement to occur.The biceps contracts and raises the forearm as the triceps relaxesAntagonistic muscle pairs
The following groups of muscles are antagonistic pairs:Biceps
Triceps
Hamstrings
Quadriceps
Gluteus maximus
Hip flexors
Gastrocnemius
Tibialis anterior
Pectoralis major
Latissimus dorsi
To allow antagonistic pairs to work efficiently, other muscles called fixators assist by supporting and stabilising the joint and the rest of the body. Some fixators also assist the agonist and act as a synergist.The trapezius muscle can act as a fixator when the biceps is flexing the elbow joint.The abdominals can act as fixators to stabilise the body for hip and knee movements.In a certain animal, a breed is known that always has a hairy tail; another breed is known that always has a naked tail. How would you determine which trait is dominant?
the dominant trade should be the hairy tail if its seen more often, naked tails are resesive and are seen less often, hope that helped
In a certain animal, it is possible to determine a dominant trait by crossing purebred lines and observing the proportion in offspring.
What are purebred lines?The purebred lines are genetic lineages of organisms that are homo-zygous for a given genetic/phenotypic trait.
It is possible to determine the dominance level of phenotypic features by crossing purebred lines.The proportion of the phenotypic traits in progeny will evidence the presence of dominace.In conclusion, in a certain animal, it is possible to determine a dominant trait by crossing purebred lines.
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