Answer:
S phase
Explanation:
S phase is the second phase of interphase (longest phase where cell grows and replicates it's DNA and does it function. It is broken up into smaller sub phases). S phase is the synthesis phase. During this phase chromosomes are replicated ( The DNA is copied).
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Anthropologists have concluded that modern day humans originated from the continent of Africa. Looking at the distribution of skin tones we now see all over the world today explain why this pattern is makes sense for what we see today.
MUST USE AND HIGHLIGHT THE FOLLOWING KEY TERMS: variation, direct sunlight, UV radiation, Vitamin D, folate (folic acid), equator, evolution, parents, offspring, Africa, survival, natural selection, genes, latitude, adapt/adaptation
Answer:This pattren makes sense for what we see evryday is beacause each skin color come from somewhere like the skin color white it moslty comes from english speaking countries.
Explanation:Hope it helped
what do ribosomes do in animal cells
John is a 34-year-old homosexual man diagnosed with HIV 2 years ago. He has come to your office for a follow-up appointment and has several concerns he would like addressed. Before his current appointment, you requested John have blood drawn to assess how the current regimen of medications has been working. What factors are you checking? Select all that apply. HIV viral load HIV antibody levels Antibodies for CD4 cells CD4 number CD4:CD8 ratio
Answer:
The correct answer is -
HIV viral load
HIV antibody levels
CD4 number
CD4:CD8 ratio
Explanation:
The doctor wants to check the current condition of HIV and its effects on the body of John and how are the medicines are helping. So he must be checking the viral load which means how much virus present in the blood. The level of antibodies gives the idea of antibodies produced by the body in response to infection with HIV.
The levels of CD4 cells are assessed as they are affected by the HIV virus along with CD8 cells. Antibodies are not produced against CD4 cells. Antibodies are generally for diagnosis only.
What are the living things that are best adapted to their environment will be more likely to survive
Answer: They are more likely to survive due to NATURAL SELECTION.
Explanation:
Adaptation of living organisms is the ability of these organisms to use its features which may by structural, physiological or behavioural to reproduce and survive in its environment.
NATURAL SELECTION plays an important role in the adaptation of organisms for survival. This is the process whereby the better fitted or adapted varieties of species in population are selected by environmental pressures. For example, a plant population in a region which had become drier climatically faces a water shortage problem not present previously. Among this plant population are a few individuals with a better developed root system and a thicker layer of cuticle. These individuals have a better chance of survival now because they can obtain a greater share of the limited water supply and reduce water loss from their surface more efficiently.
In the above example, the change to drier climate imposed an environmental pressure on the plant population. This affected the survival and reproduction of the individuals in the plant population in such a way that eventually a variety better adapted to the drier climate dominates the population.
What are the characteristic of a cell?
Answer:
All cells have a cell membrane, cytoplasm, and DNA. cells differ in how their genetic information is contained. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
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Explanation:
What best defines gene flow
Explanation:
Gene flow is the exchange of alleles between two or more populations.
Gene flow is the exchange of alleles between two or more populations. For this reason it is sometimes referred to as allele flow or gene migration. While migrating animals often carry new alleles from one population to another, they must interbreed with the new population for gene flow to occur
When new molecules are introduced to one isolated area of a solution, there will temporarily be a high concentration of those molecules in one area of the solution. What is the name for the spontaneous process of dispersing these molecules to create a uniform concentration throughout the solution?
1. osmosis
2. transport
3. filtration
4. diffusion
Answer:
4.Diffusion
Explanation:
Diffusion if the movement of particles from a region of high concentration (where there is many) to a region of low concentration (where there is less) until it is evenly distributed.
(a) Describe why DNA replication is said to be a semiconservative process. Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism.
Explanation:
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Which is associated with weak light rays that travel in different directions?
Answer:
"scattering" that would be the correct answer :)
Explanation:
hope it helps
1. The diagram below represents structures found in a human female,
3 to the document will
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Which process results in the formation of structure X?
A) mitosis
B) meiosis
C) recombination
D) cloning
The process that leads to the formation of structure X in the diagram would be meiosis.
The diagram is that of the female's reproductive structure showing the uterus, ovary, and fallopian tubes.
The structure marked X is an ovum or egg.The ovary produces ovum or eggs through a division known as meiosis.The ovary is diploid (2n), but gives rise to haploid (n) eggs by meiotic division. Thus, meiosis is referred to as reductional division.
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What rock and type of rock was found at the triangle shaped landform on Mars?
Answer:
heeya I'm jessyour answer is herethe triangle shape solid rock that form over time is called an alluvial fan.Explanation:
hope it may help you oopa/cissy whatever hahahaArchaea are often called _________ because they live in areas where most living things couldn't survive.
A. hydrophiles
B. extremophiles
C. heterotrophs
Answer:
B. extremophiles
Explanation:
Archaea are often called extremophiles because they live in areas where most living things couldn't survive.
Answer:
B. extremophiles
Explanation:
Archaea are called as extremophiles. So, option (B) is correct. Hope it helps you!!!
Describe the size of insolation when it strikes the Earth.
Answer:
the surface of the earth absorbs. 51 percent of the insolation
Write a caption to describe the events shown in the illustration.
Answer:
the plasma is go out from the capillaries, therefore the capillary is incomplete because in the capillaries the plasma is recused, So the plasma is create illustration
Dados los elementos Ca y Cl
a) Escribir la CE (Configuración electrónica)
b) ¿Cuál de estos átomos tiende a perder electrones y cuál a ganarlos? ¿Cuál formará aniones y cual cationes?
c) Escribir la estructura de Lewis para la sustancia iónica cloruro de calcio (CaCl2).
Answer: The answer is c
Replanting trees on a bare hillside is an EXAMPLE of
Answer:
Reforestation and restoration
Answer:
Reafforestation and restoration
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help me
After a forest fire, which type of organisms will begin secondary succession?
small shrubs
mature oaks
evergreens
wildflowers
Small shrubs are the kind of organisms that start secondary succession after a forest fire. The correct option is A.
Thus, the term "secondary succession" describes the ecological recovery process that follows a disruption like a fire. Small shrubs have developed survival strategies that enable them to swiftly colonize damaged environments.
They have the capacity to emerge from subterranean structures once again or to create seeds that will take root in newly accessible sunshine and nutrients. Due to their quick growth and capacity to keep the soil stable, these shrubs facilitate the establishment and flourishing of other plant species.
Thus, the ideal selection is option A.
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what is the role of the controlling tube
What is evolution?
A. A change in the gene pool over time
B. Having a gene pool
C. Sexual selection
D. Natural selection
Answer:
A. A change in the gene pool over time
Explanation:
The evolution is the change in the gene pool over time. Therefore, the option (A) is the correct answer.
Match the following.
1. the energy lost to disorder
2. related to or possessing motion
3. all of the chemical reactions in an organism required for maintenance of the processes of life
4. possible; ability to go into action or perform work
5. the study of energy and its transformations
kinetic
metabolism
entropy
potential
thermodynamics
1. The energy lost to disorder - [tex]\boxed{ entropy }[/tex]
2. Related to or possessing motion - [tex]\boxed{ kinetic }[/tex]
3. All of the chemical reactions in an organism required for maintenance of the processes of life - [tex]\boxed{ metabolism }[/tex]
4. Possible; ability to go into action or perform work - [tex]\boxed{ potential }[/tex]
5. The study of energy and its transformations - [tex]\boxed{ thermodynamics }[/tex]
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What are 3 reasons for exploring space? I
Which of the following is a subsystem of an organism?
a.cell
b.organ system
c.tissue
d.all of the above
Answer:
d
Explanation:
When blood glucose concentration rises, the pancreas secretes _______, and when blood glucose levels fall the pancreas secretes _______.
Explanation:
when glucose concentration is high the pancreas secretes more insulin while if the glucose level falls the pancreas secretes glucagon to raise them
what does the picture show??
Answer:
Population
Explanation:
An Organism would be 1 single mouse, a community encompasses multiple animals living in that same area, a niche has to do with where they are living and how they interact, so only the population makes sense.
a square and a triangle can be intersect in
Shawna is writing a paper for her science class, and she wants to include a list of luminous objects. These are objects that produce and emit
their own light. Objects that are not luminous, also called illuminated objects, only reflect light.
Which list should Shawna add to her paper?
Answer:
The sun, the star Proxima Centauri, and the star Polaris.
Explanation:
The sun and stars emit light on their own, therefore they are luminous.
Droughts occur due to climate change and elevated temperatures, which in turn may lead to other consequences as well. Imagine that a wildfire happened in the nature reserve. Predict what would happen if such an environmental shift that is so extreme and rapid
Hits the nature reserve and the population of deer mice does not have time to adapt. Propose a possible solution for this problem.
Answer:
this is not a correct Q
this is wrong
an air mass with low pressure will flow?
A. towards the West
B. flow in a circular pattern
C. to regions with low pressure
D. to regions with high pressure
Answer:
C. to regions with low pressure
Explanation:
hope it is helpful to you
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Answer:
Deoxyribonucleic Acid [DNA]
Explanation:
DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism.
viruses are a chain between living and nonliving beings . they are obligatory paracites and have either RNA or DNA .
What must happen before meiosis can begin?
A. Four gametes must be produced.
B. The four tetrads must be pulled apart.
C. DNA doubles and produces sister chromatids.
D. The cell membrane pinches together.
The process that must happen before meiosis can begin is that DNA doubles and produces sister chromatids (Option C).
What is meiosis?Meiosis is a cell division process that generates four daughter cells having half of the DNA when compared to the parental cell.
Meiosis needs first the duplication of the genetic material by means of a synthesis stage (S phase).
In conclusion, the process that must happen before meiosis can begin is that DNA doubles and produces sister chromatids (Option C).
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