Answer:
the humus contains the minerals necessary for chlorophyll synthesis
Explanation:
The yellowness of leaves in plants can be attributed to inadequate chlorophyll in the plant. The chlorophyll is responsible for the greenness appearance of the leaves of plants and when it is present in inadequate quantity, the leaves appear yellowish in color.
Some of the minerals necessary for the formation of chlorophyll include magnesium, nitrogen, and iron. It thus means that the humus supplied to the soil of group 1 plant has the necessary minerals to synthesize chlorophyll while the soil of group 2 plants is deficient in some or all the minerals required for chlorophyll synthesis.
How is meiosis similar to mitosis?
Answer:
Both mitosis and meiosis are processes of cell division. They use the same steps for cell division, including prophase, metaphase, anaphase and telophase. Also, mitosis produces 2 diploid cells, while meiosis produces 4 haploid cells.
Explanation:
What is the main characteristic of eusocial groups?
Answer:
They carry out group decision making.
what is food prevention ? explain any two method of food preservation ?
Answer:
Food prevention is to stop or slow down the spoilage of food,
loss of quality and edibility of food for longer time.
METHODS OF FOOD PRESERVATION
CANNING: this involves cooking the food in special oil or paste and packing it in air tight cans under strict hygiene.REFRIGERATION: this involves storing the food at a temperature below 0°c. This renders bacteria and other decay causing agents inactiveThe researchers participating in the experiments described above were assigned to conduct new experimentation, also on Leigh syndrome-positive mouse specimens. As a precursor step, it was decided to create a new population of Leigh syndrome-positive mice. What would be the option most likely to be successful in creating this population
Answer:
Induction of intentional mutations in the mitochondria of pre-fertilization ova
Explanation:
Leigh syndrome is a neurological disorder which affects the motor and mental state of organisms. The Mitochondria is known as the power house of the cell due to its production of energy for use by various cells in the body. Most neurological problems affect the motor and mental state as a result of a mutated mitochondrion. This explains why Induction of intentional mutations in the mitochondria of pre-fertilization ova Is correct.
The diagram shows changes of state between solid,
liquid, and gas. The atoms of a substance lose energy
during a change of state. After the change, the atoms
are close together but are able to slide past one
another.
Which arrow represents the change of state describes above ?
Answer:
Arrow O
Explanation:
The question states that the substance is starting out with high energy (gas) and lowers energy to something that is still able to "slide" or flow, a liquid.
The change is moving from gas to liquid
Answer:
It's arrow Q
I did the test, I got a 100%
Which describes an effect that ocean currents have on short-term climate change?
A)Ocean currents increase the strength of prevailing winds, which can cool the air and land.
B)Ocean currents can carry cold water, which can cool the air and land.
C)Ocean currents increase hurricane activity, which can raise the temperature of the air and land.
D)Ocean currents can carry warm water, which causes hurricane activity and raises the temperature of the air and land.
Answer:B)
Explanation: Our oceans cover more than 70 per cent of the Earth's surface And can do much more things.
In an ecosystem, ocean currents carrying cold water, which can cool the air and land describes an effect which has a short-term climate change.The correct option is B.
An ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact with each other. The abiotic and biotic components are linked to each other through the nutrient cycles and flow of energy.
Energy enters the ecosystem by the process of photosynthesis .Animals play an important role in energy transfer by feeding on each other.As a result of this transfer of matter and energy takes place through the system .Within an ecosystem, climate changes are greatly influenced by the ocean currents carrying cold water, which are able to cool the air and land.
Thus, the correct option is B.
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Consider two isotopes of the element potassium. The atomic number of potassium is 19. One isotope has the atomic mass 39 while the other isotope has the atomic mass
40. Which of the following statements about the isotopes is correct?
One isotope contains 39 protons while the other contains 40 protons
One isotope contains 20 protons while the other isotope contains 19 protons.
Both isotopes contain 20 protons.
One isotope contains 20 neutrons while the other isotope contains 21 neutrons
Answer:
One isotope contains 20 protons while the other isotope contains 19 protons.
Explanation:
Hope it helps.
How does loss of biodiversity affect the biosphere?
O A New sources of medicines are gained.
B. Ecosystems become more resilient to change.
C. Natural food sources are lost.
D. Extinct species are replaced by new species.
Answer:B
Explanation:Ecosystem becomes more resilient to change when there is biodiversity loss and the changes affect human livelihood,income e.t.c.
A rabbit breeder has rabbits that exhibit three different coat colors: dark gray, chinchilla (a lighter gray), and albino. When cross breeding rabbits with these different coat colors, he finds that dark gray is dominant to chinchilla and albino, whereas chinchilla is dominant to albino. These phenotypic outcomes indicate that there are more than two alleles of rabbit coat-color genes and that they exhibit
Answer:
Multiple allelism
Explanation:
Multiple alleles occur whereby three or more alternative form of a gene which in this case study are dark gray, chinchilla (a lighter gray), and albino; are all present at a locus but only two of the alleles can be present in just one organism.
Which period is older than the Triassic period?
Explanation:
The Triassic is the oldest period in the Mesozoic Era. But the Permian Period came before.
Answer:
Cretaceous
Explanation:
In the time span of the Mesozoic era the Jurassic came after the Cretaceous.
Drag each label to the correct location on the diagram. Identify how a hormone molecule performs its function.
Answer:
Picture? to the question you are asking.
Explanation:
Answer:
I'll work my way from the bottom right to the left and up... ( Hope this doesn't get too confusing ^^:)
New Protein is "SECRETION OF PROTEIN BY THE CELL"
The purple things "SYNTHESIS OF PROTEIN MOLECULES BY mRNA AND tRNA"
The green squiggle "FORMATION OF mRNA IN THE NUCLEUS"
The DNA strand in the nucleus "INITIATION OF DNA REPLICATION BECAUSE OF A SIGNAL GIVEN BY THE HORMONE"
The inner receptor "BINDING OF THE HORMONE MOLECULE WITH ITS RECEPTOR OF THE CELL"
The top box for tissue and hormone "SECRETION OF HORMONE BY TISSUE"
Hope this helps ya!!! ^^~
What happens to the molecules of a substance when heat is added to it ?
Answer:
The molecules start to energize.
Explanation:
When you heat up any molecule, the atoms and molecules start to vibrate more energetically. When this happens, it increases the space in-between the atoms. The substance expands and takes up more space as atoms move faster and farther away.
The weather changed from cold to warm. Jessica was excited because should could wear her new flip flops and shorts to school. She had her science laboratory later in the day. What should she do to be safe? take clothes and shoes to school that cover her up put on her laboratory coat so it covers her shorts, and wear goggles wrap herself in a fire blanket so it covers her body remove her shoes so no chemicals get in them
Answer:
In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves , and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
What are bunsen burners?Bunsen burners are the equipment used in laboratories for heating and sterilizing processes. It is a device used to produce flames using atmospheric oxygen gas and fuel in the burner.
While using the bunsen burner, laboratory safety procedures should be practiced to ensure the safety of the person as well as the working place. Before igniting the burner should be inspected and checked for any leakages. The notebooks and papers must be placed away from eh burner to avoid any fire accidents as they are easily flammable and can catch fire.
Therefore, In order for Jessica to be as safe as she can be during her lab she should wear pants, long sleeves and sneakers. After putting on her lab coat and goggles, there is a very low chance for her to get hurt from a chemical spill.
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In a species of mice a single gene determines fur color. The two alleles for fur color are black (B) and white (W). Which of the following is most likely true if the alleles for fur color show codominance? A.) The BW mice would be black. B.) The BB mice would be white. C.) The BW mice would have black and white patches. D.) The WW mice would have black and white patches.
Answer:
C - The Black and White Genes are Shared
Explanation:
MARK AS BRAIN... hehe
What type of blood vessels surrounds the alveoli; Select one: A. arterioles B. artey C. capillaries D. vein
Answer:
Option C
Explanation:
Capillaries surround the blood vessels of the alveoli where exchange of gases occurs.
=> Oxygen from the alveoli goes into the capillaries
=> CO2 and water from the capillaries goes into the alveoli so that it can be respired out.
Answer: C) capillaries
Explanation:
Which term describes one kind of movement of earth
Answer:
Rotation or Revolution
Explanation:
Answer:
Earth spins around it's axis is one type of movement.
Today, most species are in _____.
it would make sense for the answer to be danger
Answer:
The answer is STATIS.
Explanation:
A statis is a place where most of different species of fishes live in.
Hope it helps.
Which statement best describes the cycling of carbon between the atmosphere and geosphere? Precipitation and condensation increasing the groundwater supply Glaciers melting due to an increase in global climate temperatures Volcanic activity releasing carbon into the atmosphere Trees and plants releasing carbon through respiration
Answer:
Volcanic activity releasing carbon into the atmosphere
Explanation:
In the geosphere, carbon enters when the dead and decaying matter takes the form of fossil fuels. From the biosphere, the carbon enters into the geosphere through these sources. A carbon reservoir is maintained in the geosphere through these sources. The process of weathering, erosion, and volcanic eruption exposes the carbon content of the geosphere into the atmosphere. Volcanic eruptions upturn the carbon content of the geosphere and expose them.
Answer:
Volcanic like the answer above
Explanation:
Took the test and got it right
Does natural selection give organisms what they need
Answer:
La formulación clásica de selección natural establece que las condiciones de un medio ambiente favorecen o dificultan, es decir, seleccionan la reproducción de los organismos vivos según sean sus peculiaridades. La selección natural fue propuesta por Darwin como medio para explicar la evolución biológica.
Explanation:
why is the african sleeling sickness called trypanasomes?
Answer:
because symptoms can include a disturbed sleep pattern
Explanation:
African trypanosomiasis is a parasitic disease transmitted by the tsetse fly. It gets its nickname 'sleeping sickness' because symptoms can include a disturbed sleep pattern.
Hope this helps
PLEASE HELP ME, I WILL MAKE YOU BRAINLIEST!!!!!!
Which of the following is an example of population density?
A) country with a large population
B) maximum number of wolves in a forest
C) total number of alligators in Florida
D) two jaguars per thousand hectares
Answer:
its b
Explanation:
because its about wolves in a forest population with maximum
Answer:
Hey there!
It's actually two jaguars per thousand hectares.
Population density is often described as the number of animals or people per a certain area.
Hope this helps :)
please help me completing this biology table. 25 points !! :((
Answer:
The answers are
1cm = 0.01
Milli (mm)
1.0 × 10^-6
1nm = 0.000000001m
Hope this helps you.
A population of 40 killer whales lives in a bay that measures 2000 square miles. What is the population density of killer whales?
Answer:
.02
Explanation:
When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.
A population is the size of the group of individuals residing at a place. A population of 40 killer whales has a population density of 0.02.
What is population density?Population density is the individual's concentration of a specific species at a particular geographical location. It allows the establishment of the ecosystem and health.
Given,
Number of individulas = 40
Size of the area = 2000
Density = Number of individuals ÷ Size of the area
= 40 ÷ 2000
= 0.02
Therefore, 0.02 is the population density of killer whales.
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Which evidence supports the big bang theory?
A. Planetesimals form in debris disks.
B. Most galaxies are moving toward us.
C. Uniform background radiation is detected in every direction.
D. Galaxies spin faster than they should based on visible matter.
Answer:
The correct answer to the following question will be Option C.
Explanation:
The above given theory seems to be an astrophysical concept of something like the visible universe from those in the early observed times to its corresponding large-scale development. Technical calculations and requirements including its expanding universe of that same universe put the Big Bang between about 13.8 hundred million years ago, which would also be known to be the period of the solar system.So other choices are not related to the given theory. So that Option C would be the appropriate choices.
Answer:
the answer is C the person above me is right but just in case its on egde
Explanation:
Which evidence supports the big bang theory?
Planetesimals form in debris disks. Most galaxies are moving toward us. Uniform background radiation is detected in every direction. Galaxies spin faster than they should based on visible matter.
What are the parts of a stomata ?
Answer:
the parts of the stomata are
1 stomatal pores,
2 guard cells and
3 subsidiary cells.
The opening and closing of stomatal pores is controlled by the guard cells which become stiff when water is needed and become flat when water is not needed
hope this helps
Answer:
my answer is in the attachment below .........
Explanation:
Which is one way that analyzing ice benefits
scientists who study ancient climates?
Scientists can analyze frozen volcanic dust to help predict eruptions.
Scientists can drill deep into the ice to collect ice cores.
Scientists can use pollen grains in ice to make inferences about the climate area.
Scientists can study tree rings in ice to learn more about past climates.
Answer:
RIGHT ANSWER IS B) Scientists can drill deep into the ice to collect ice cores.Explanation:
well i took the test
Scientists can drill deep into the ice to collect ice cores which is one of the way of benefit of analyzing ice. The correct option is B.
What are ice cores?Ice cores can give direct information about the way of changing greenhouse gas concentrations in the past, and also the direct evidence that the climate can change abruptly under certain circumstances.
Scientists can drill deep into the ice to collect ice cores which is one of the way of benefit of analyzing ice.
Thus, the correct option is B.
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Which two statements in the passage are true about fungus-like protists?
Options are not provided in the questions, so the complete question is as follows:
Which two statements in the passage are true about fungus-like protists?
1) Fungus-like protists feed on decaying leaves.
2) They photosynthesize in the presence of sunlight.
3) They reproduce using spores. They use pseudopods to engulf any foreign material and convert it into food.
4) They are prokaryotic in nature.
Answer:
1) Fungus-like protists feed on decaying leaves.
3) They reproduce using spores. They use pseudopods to engulf any foreign material and convert it into food.
Explanation:
Molds are fungus-like protists and they are heterotrophs like fungi. Slime molds and water molds are well-known example of fungus-like protists. They feed on decaying organic matter such as leaves.
Fungus-like protists reproduce using spore and use pseudopods to engulf any foreign material and convert it into food.
Hence, the correct options are 1 and 3.
Answer:
1 & 3
Explanation:
I know stuff because im patrick and im a star
why worker bees are called sterile female?
plz help me to this question....
Answer:
Worker bees are sterile although they are female because their ovary is not activated that means they cannot lay eggs like Queen bee. When Queen bee come closer to Worker bees,the worker bees egg producing gene subside, so no eggs are produced.When eggs are not produced , no fertilization takes places, so they are non- fertile or sterile.
Hope this helps...
how is weather useful to our body?
Answer:
It enables proper functioning of organs in the body.
Explanation:
Active transport requires __________ and ___________ in order to function correctly. A. energy, peripheral proteins B. energy, nucleic acids C. nucleic acids, membrane proteins D. energy, membrane proteins
Answer:
it is Option D
Explanation:
because energy and membrane proteins because active transport requires expenditure of energy and it is done with the help of transport proteins
Answer:
D
Explanation: