Answer:
The atom consists of a tiny nucleus surrounded by moving electrons. The nucleus contains protons, which have a positive charge equal in magnitude to the electron's negative charge. The nucleus may also contain neutrons, which have virtually the same mass but no charge.
Explanation:
Single celled eukaryotes are considered some of the most complex
cells on earth. Why would scientists believe that single celled
organisms(eukaryotes) are more complex than multi celled
organisms?
Answer:
Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms.
Explanation:
Answer:
The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.
:-
One theory that may explain how eukaryotes became so complex is the endosymbiotic theory. This theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic cells that began to live within a larger host cell.
centromeres divide and sister chromatids become full-fledged chromosomes during:
Answer:
Anaphase
Explanation:
Sister chromatids separate and daughter chromosomes migrate to opposite poles during anaphase.
b) How do you know the students in the above study are acting as scientists? (1 point)
Answer:
Could you edit the question and add the study, please?
Explanation:
Index fossils give us clues to_______________?
Question 5 options:
the history of the wooly mammoth
the diet of early man
species and paleoenvironments long ago
multicellular organisms
Answer:species and pale environments long ago
Explanation:
Aquifers are ___ . A. Structures used to transport water from city to city
Answer:
Ground water
Explanation:
ez
Describe the genetic components of the genetic material containing two variants of each chromosome pair, one from each parent. Give an example of the inputs and outputs of mitosis.
Answer:
Human cells contain two sets of chromosomes, one set inherited from each parent. Each cell normally contains 23 pairs of chromosomes, which consist of 22 autosomes (numbered 1 through 22) and one pair of sex chromosomes (XX or XY). However, sperm and ova normally contain half as much genetic material: only one copy of each chromosome. Each chromosome contains many genes, the basic physical and functional units of heredity.
Explanation:
Which organism would most likely be found in the benthic zone?
A. crab
B. shark
C. whale
D. zooplankton
Answer:
Crab
Explanation:
Life on the Arctic Deep Sea Floor. Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.
which is an abiotic factor that functions as a limiting factor for the autrophs in the ecosystem below?
Answer:
i hope it helps you
Examples; of biotic factors include any animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem.
Explanation:
In general, biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores.
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True or False: Myocardial infarction might not present any symptoms.
*true
Answer:
It's true
Explanation:
Theres a quizlet called "Physiology unit 2" with the answers
What is the goal of using renewable energy sources?
Answer:
to reduce or to minimize waste
to improve life style or to be modest county like USA unlike Africa
What features are present in both a plant cell and bacterial cell
Answer:
organelles , Plasma membrane, cytoplasm, ribosomes
Explanation:
mark brainliest plz
which type of transport would be required for the solute molecules to move against the concetration gradient?
Answer:
Active Transport
Explanation:
active transport
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Which of the following was developed following Griffith's 1928 experiment. A. Some pathogenic bacteria cannot be heat-killed. Bacterial virulence is related to temperature resistance. B. Streptococcus pneumoniae causes disease. C. DNA from dead encapsulated bacteria can transform living un-encapsulated bacteria into living encapsulated bacteria. D. Dead encapsulated bacteria can cause disease.
Answer:
I believe A is the answer, but I'm not positive.
Explanation:
Griffith demonstrated in 1928 that the ability to synthesis a capsule and consequently become virulent can be transferred from heat-inactivated “smooth” strains to surviving but avirulent “rough” strains of S. pneumoniae. Therefore, option (A) is correct.
What was Griffith's experiment?British bacteriologist Frederick Griffith's 1928 bacteria experiment was the first to demonstrate the "transforming principle," which led to the realization that DNA serves as the carrier of genetic information.
Griffith tried injecting mice with heat-killed S bacteria as part of his investigations (that is, S bacteria that had been heated to high temperatures, causing the cells to die). Unsurprisingly, the mice were not harmed by the heat-killed S bacterium.
The first study demonstrating that bacteria are capable of transferring genetic information through a process known as transformation was conducted by Frederick Griffith.
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The National Chlamydia Screening Programme was set up to reduce the
spread of Chlamydia in the UK. Explain one reason why screening individuals
without symptoms could help to reduce the spread of the disease.
Answer:
????
Explanation:
is this multiple choice or by what you learned?
approximately how many nucleosomes are required to organize this region of dna into the 10nm fiber structure?
Answer:
Answer is 512 nucleosomes.
Explanation:
DNA is the genetic material that is compressed and stored in the nucleus of the cell. Approximately 512 nucleosomes would be required to organize 92,672 base pairs long region.
What are nucleosomes?Nucleosomes are the packaging units of the genetic material that comprises the DNA segments wrapped along with the histone proteins in a compacted manner. This allows the genetic material to be condensed into smaller volumes.
Given,
Genome size = 92,672 base pairs
Linker DNA = 35 bp
The total number of base pairs = number of base pairs in nucleosome core + linker DNA
= 146 + 35
= 181
The number of nucleosomes can be calculated as:
Nucleosomes = Genome size ÷ total number of base pair
= 92,672 ÷ 181
= 512
Therefore, there are 512 nucleosomes are present in the Drosophila.
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Your question is incomplete, but most probably your full question was, A large gene-containing region of DNA in the fruit fly Drosophila melanogaster is 92,672 base pairs long. The length of linker DNA in Drosophila is 35 base pairs. Approximately how many nucleosomes are required to organize this region of DNA into the 10nm fiber structure?
nadph and atp are two molecules produced during the light-capturing reactions of photosynthesis. what are these molecules used for later in photosynthesis in the calvin cycle?
Given the characteristics of the Calvin cycle, we can conclude that NADPH and ATP will be used to reduce carbon dioxide to sugar.
The Calvin cycle is known as a light-independent reaction, meaning it can occur during the dark phase of photosynthesis. It is often called the carbon reduction cycle, given that it does just that. In this cycle, carbon is reduced into a sugar known as G3P. In order to do this, it requires NADPH and ATP.
As with most reactions at a cellular level, it requires ATP. This molecule is that of Adenosine triphosphate and is often known as the "molecular currency" given how common it is as a requirement for reactions to take place. ATP is the source of energy for the Calvin cycle.
Meanwhile, NADPH is also required for the Calvin cycle. The main function of the Calvin cycle is to reduce carbon dioxide through a series of steps in order to produce G3P. In order to reduce CO2, hydrogen atoms are necessary. NADPH acts as a carrier of these hydrogen atoms, offering the ions needed for the reduction to take place.
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Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
At a large desk or on the floor, choose a position to represent the Sun, and place Mercury a few inches from it. Predict the relative distances between each of the other planets, and space them out accordingly. Do you think the average distances between each of the planets stays relatively consistent or varies greatly? What leads you to this conclusion?
Assuming we are to perform this model to scale, with accurate and reliable data, we can conclude that the average distance between each of the planets would increase as we go.
Most science projects which involve creating a model of the solar system place each planet in perfect orbits at equal distances from one another. Accurate scientific data tells us that this is not the case.
The position of the planets in our solar system follow two trends:
Not all planets have perfectly circular orbits, and therefore are not always at the same distance The spacing between planets grows as we get further from the sun.The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart as well as causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
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Answer:
The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart, as well as, causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
Explanation:
Edmentum
During cellular respiration, every living thing uses ______ and releases ______ back into the environment.
Answer:
oxygen and carbon dioxide
Explanation:
What is the main function of our nervous
Answer:
to collect a multitude of sensory information; process, interpret, and integrate that information;and initiate appropriate responses throughout the body.
the process by which water passes into or out of a cell is called:
Answer:
The answer to your question is Diffusion. No other explanation.
Answer:
Simple diffusion
Explanation:
A healthy, balanced ecosystem has _______.
a.
fewer producers than consumers
b.
more quaternary consumers than primary consumers
c.
more producers than consumers
d.
fewer primary consumers than tertiary consumers
Please select the best answer from the choices provided
A healthy, balanced ecosystem has _______.
a.
fewer producers than consumers
b.
more quaternary consumers than primary consumers
c.
more producers than consumers
d.
fewer primary consumers than tertiary consumers
Please select the best answer from the choices provided
Answer:
D or B I'm thinking its D
Explanation:
Answer: C
Explanation:
Tại sao sau khi bón phân đạm cho cây ko nên ăn sau khi bón?
Answer:
PHÂN ĐẠM VÀ NHỮNG CÂU HỎI LIÊN HỆ THỰC TẾ !
- Tại sao không bón phân đạm cho đất chua?
* Giải thích: Đất chua là đất có độ pH<7 (do dư thừa ion H+), đất chua gây ra nhiều bất lợi cho việc giữ gìn và cung cấp thức ăn cho cây, đồng thời làm cho đất ngày càng suy kiệt cả về lý tính, hóa tính và sinh học . Khi bón phân đạm có chứa ion NH4+ ion này sẽ sinh thêm ion H+ theo phương trình NH4+ «NH3 + H+ ,làm tăng độ chua của đất.
- Tại sao không bón vôi và đạm amoni (NH4NO3, NH4Cl)
Comments
Explanation:
Help plz lol
Atoms are characterized by their protons and the number of
valence electrons. Which atom does this picture represent?
Answer:
carbon because its EC is 2:4 and the diagram shows 4electrons in its outer shell
In your own words, explain how
flow rate is affected by viscosity,
cohesion and adhesion.
Answer:
Heating a gas increase its viscosity .When the viscosity of a fluid decreases,it's flow rate increase. You can compare the viscosity of different fluids by comparing their flow rate. Flow rate is affected by adhesion and cohesion. The slower the fluid flows ,the greater the viscosity.
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Answer:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations,
Explanation:
can you mark me brainliest
Which is an example of active transport
Answer:
sodium-potassium pump.
Answer:
exocytosis
pinocytosis
phagocytosis
Explanation:
Which of the following correctly orders events during mitosis?
The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
The answer option which correctly orders events during mitosis is:
D. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
Mitosis can be defined as a type of cell division or duplication through which a single parent cell produces two (2) genetically identical daughter cells.
During mitotic division, the two (2) genetically identical daughter cells produced by a single parent cell usually have the same number of chromosomes as their parent cell; this process is referred to as duplication division.
Furthermore, the following events take place during mitotic division in living organisms:
The mitotic spindle (spindle fibers) of microtubules attaches to chromosomes. These microtubules organize the chromosomes. The nuclear membrane dissolves.Read more: https://brainly.com/question/12103012
Answer:
The last one
Explanation:
The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
look at attached image, which gases are in kept in the different plants
the gases that kept different planta is A
Explain how Earth's magnetic field is generated.
Answer:
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Answer:
On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet
TWO predator adaptations used to help them capture their prey are *
camouflage
outrunning prey
mimicry
fleeing
Answer:
Under the pressure of natural selection, predators have evolved a variety of physical adaptations for detecting, catching, killing, and digesting prey. These include speed, agility, stealth, sharp senses, claws, teeth, filters, and suitable digestive systems.
Explanation:
hope this helps mah dude.