Answer: True because In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
How many copies of each chromosome do you have?
Answer:
2
Explanation:
Answer is 2....znskskskskskndk
Answer:
We all have two copies of every chromosome (except males who have one X and one Y plus 22 other pairs). Mom and dad give us copies of half their DNA -- one of each chromosome. At the end, we all have two copies of each of our chromosomes just like mom and dad
How are stars described, using their physical properties
and distance
Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
Explanation:
Which of the following is an example of microevolution?
A. the formation of four new species of fish in a lake over thousands of years
B. a mass extinction that occurs because of major environmental changes in a habitat
C. a change in the frequency of body color in a species of beetle over time
D. the formation of two new species of rodent that have been isolated by a mountain range
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Answer:
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Answer:
It would be C
Explanation:
Because the colour of a beetle is affected by the allele frequency and therefore changes in alleles as a result of mutations as a result of most likely adaptation
List three reasons why plants and animals are valuable to the local economy. How could the endangered species act help or hurt a local economy?
Answer:
Plants are valuable since they provide our food, materials for shelter, and purify the air (photosynthesis).
Animals such like livestock, supply us with food, fiber and leather.
The Endangered species act can help a local economy because it helps to supply clean air and pure water. It also protects our natural supplies.
What are the possible genotypes for blood type of the offspring of two parents, one with blood type O and one with blood type AB?
Answer:
The possible genotypes are A and B
Explanation:
can someone help me with this immediately!!!! pls don’t guess or leave links!! correct answer gets brainiest
Answer:
Bones produce blood cells. So, if there are no bones in our body, then our body cannot make blood. So the answer is B.
................waves are the slowest and most damaging, capable of crumbling buildings.
Answer:
tsunami
Explanation:
It's tusunami waves
Answer:
S-Waves or Surface Waves
Explanation:
(13) Which part of the digestive system is mainly responsible for absorbing water?
A the large intestine
B the pancreas
C the small intestine
D the stomach
Answer:
C) the large intestine
Explanation:
95% of absorption of nutrients occurs in the small intestine. Water and minerals are reabsorbed back into the blood in the colon (large intestine) where the pH is slightly acidic about 5.6 ~ 6.9.
Pls brainliest.
can someone help me with this immediately!!!! pls don’t guess or leave links!! correct answer gets brainiest
What is the most likely reason the bones of the reptiles were found on more than one continent
Answer: Plate Tectonics
Explanation:
No matter what phase water is in, the water molecules stay the same; they just move differently.”
Explain why this evidence matters:
Answer:
Think about how the water cycle works etiher look in a tetbook or something
Explanation:
4. why would a photosynthetic bacteria cell be classified as phytoplankton?
The electron transport chain produces much more ATP than glycolysis or the Krebs Cycle but it needs them to happen in order to take place. How do the first two steps make the last one possible?
Answer:
there is a link
Explanation:
glycolysis produces pyruvate which feeds into the krebs cycle
krebs cycle also generates redox agents(NADH and FADH2) needed in the etc
Which of these is produced as a result of fertilization?
-a zygote with half the number of chromosomes as a gamete
-a gamete with twice the number of chromosomes as a zygote
-a zygote with twice the number of chromosomes as a gamete
-an egg with half the number of chromosomes as a zygote
Explanation:
Third Option is absolutely correct.
Will give brainliest to whoever can match these up!
Answer:
1. boarder collie
2. newfoundland
3. bassit hound
4. german shepard
5. dashound
DO NOT USE THESE AS ANSWERS IF IT IS FOR SOMETHING IMPORTANT!!!!! THESE ARE JUST MY GUESSES
Explanation:
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Answer:
The answer is D
Explanation:
This is because the markup percentage of the price of riding busses mean that less people will ride it and the bus will be less active.
crossing two plants which differ in two traits such as height and color
Answer:
This is "Mendel crossed pea plants".
Explanation:
Hope this helps!!
Please mark as brainiest!!!
Describe the characteristics of the four groups of protozoans.
Answer:
Amebas (representative: Ameba proteus)
Flagellates (representative: Trypanosoma, Euglena)
Ciliates (representative: Paramecium)
Apicomplexa (representative: Plasmodium)
What would happen if a plant was unable to produce dermal tissue?
Answer: Dermal tissues in terrestrial plants produce a waxy cuticle that protects the leaf. ... The plant's stomata would be unable to open, and it would have a limited ability to perform photosynthesis.
Explanation: Hope this helped
When does molecular breeding give an important advantage over conventional breeding, and how can we exploit this?
Answer:
molecular breeding accelerates the times for genetic improvement
Explanation:
Molecular breeding refers to the techniques used in molecular biology to improve phenotypic features in plants and animals of agronomic and economic interest. Molecular breeding involves many diverse molecular techniques which include, among others, selection assisted by molecular markers (MAS), genome editing techniques (e.g., the CRISPR-Cas genome editing system), quantitative trait loci (QTL) mapping, gene introgression assisted by markers, etc. These techniques can dramatically accelerate breeding programs aimed at improving plant/animal traits and, therefore, they have a fundamental advantage with respect to conventional breeding methods.
Which action would most likely create a light wave ?
A- pouring water into a pile of dirt
B- hitting a drum with a drumstick
C- producing a fire from fuel
D- dropping a pebble in a pond
What is the impact of developing and using rock, mineral, and energy resources on earth's living and non living systems
Answer: The use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.
Explanation:
Mineral and rock extraction, transport and processing comprise actions that produce environmental impacts because it produces a certain disturbance to the surface and underlying strata, as well as to aquifers. These impacts can be short-lived, lasting as long as the mine is operational, or they can persist after mine development has been completed.
Major impacts include:
Contamination of soil, vegetation, drainages, rivers and groundwater aquifers contamination from leaking tailing piles and slurry ponds. If not properly treated, effluent from surface or subway mine water disposal can be highly acidic, and will contaminate surface waters and shallow groundwater with heavy metals, nitrates or oil from equipment, reducing local water supplies. During surface mining, movement and stockpiling of overburden, constructions or covering of soils alter rivers, drainages and coastal areas. Surface disturbance caused by access roads, pits, and site preparation.Noise and emissions from the operation of equipment.Air pollution, atmospheric dust from traffic, excavation, drilling and site clearing. Atmospheric particulates come from blasting, excavation and earth moving, transportation or any operations that occur on the surface of subway mines.Removal of rock strata can disrupt the continuity of the local aquifer, and cause interconnections and contamination between groundwater.Both surface and subway mining include a drainage of the mine area and discharge of mine water, the removal and storage/disposal of large volumes of waste and the transfer and processing of minerals or construction materials. This requires the use of diesel or electric mining and haulage equipment. Transportation of ore within the mine area and to processing facilities may use trucks, conveyors, rail, polyduct or conveyor belt which are vehicles that emit large amounts of carbon dioxide.
Processing plants may be located in mountainous regions and so may have difficulty disposing of production wastes and other pollutants. They may then end up disposing of them in rivers or coastal waters.
The land at the surface of the mines will be unstable, there will be fracturing and subsidence, it will modificate soils, vegetation, rivers, wildlife habitat, wetlands, causing a temporary or permanent loss of land productivity, and contamination of soils due to mineral materials and toxic substances.
Also, the production and use of energy is the main cause, together with transportation, of greenhouse gas emissions, the gases responsible for climate change. Consequences of climate change are increased temperatures, rising sea levels and reduced rainfall.
The current model of generation, transport and consumption, absolutely dependent on fossil fuels, is unsustainable. The chemical products emitted, mainly from coal and oil-derived thermal power plants, are transported by the wind and deposited by rainfall thousands of kilometers away from their origin, causing "acid rain", which is the cause of the deterioration and destruction of forests, lakes and other ecosystems. Another example are the Nuclear power plants which produce high-level radioactive waste (long-lived, highly radioactive), which poses a constant threat to the environment due to the current inability to manage it.
Thus, the use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.
The impact of developing and using rock, mineral, and energy resources will be:
loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil.
Impact of Minerals:They help us to develop new technologies and are used in our everyday lives. Our use of rocks and minerals includes as building material, cosmetics, cars, roads, and appliances. In order maintain a healthy lifestyle and strengthen the body, humans need to consume minerals daily. Soil, rocks, and minerals provide essential metals and other materials for agriculture, manufacturing, and building.
Find more information about Minerals here:
brainly.com/question/89259
How do we have such versatile proteins in our body?
Answer:
They are very versatile and have many different functions in the body, as listed below: Act as catalysts. Transport other molecules. Store other molecules.
Explanation:
Energy that comes from the Sun
1. chlorophyll 2.Photosynthesis
3.Radiant energy
4.Phytoplankton
Answer:
2
Explanation:
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants.
EMERGENCY!!!!!  what amino acid causes sickle cell anemia?!!!!!??
Answer:
hemoglobin
Explanation:
Which of the following illustrates the energy transformation that occurs during photosynthesis
A Electrical to Leaf to thermal energy
B Chemical energy to leaf to mechanical energy
C Light energy to leaf to chemical energy
D Thermal energy to leaf to light energy
Answer: B
Explanation: light energy is converted to chemical energy
Help me plss!! (I will give brainliest)
Answer:
g-2 phase
Explanation:
Answer:
D. Interphase
Explanation:
Image of the cell cycle. Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
1.-¿Esta será la primera vez que ocurre una pandemia en la humanidad?
2.-¿Cómo habrán enfrentado las personas situaciones parecidas en años pasados?
3.-¿Por qué tendríamos que hacer caso a las recomendaciones de los científicos?
Explanation:
1.-¿Es la primera vez que ocurre una pandemia en la humanidad?
La pandemia de coronavirus no es la primera pandemia que enfrenta la humanidad, a lo largo de la historia se han registrado varias pandemias, como la Peste Negra, una pandemia que ocurrió en Europa en el siglo XIV y mató a aproximadamente 200 millones de personas.
2.-¿Cómo se habrá enfrentado la gente a situaciones similares en los últimos años?
Cada pandemia que enfrenta el mundo ha traído nuevas lecciones y descubrimientos científicos sobre cómo reducir los impactos provocados por la enfermedad y nuevas formas de tratamiento como los medicamentos y las vacunas, que hasta el día de hoy tienen un impacto positivo y benefician a las generaciones actuales.
3.-¿Por qué debemos seguir las recomendaciones de los científicos?
Es fundamental seguir las recomendaciones de los científicos para contener un virus contagioso, pues a través de la ciencia se descubre cómo actúa el virus en el cuerpo humano, cómo se produce el contagio, cuáles son las mejores formas de prevención, etc.
La ciencia es fundamental para la humanidad, a través de estudios y evidencias científicas, el ser humano logra soluciones a problemas que impactan en la vida de las personas.
which of the following is a path of healthy blood flow?
a. right atrium, right ventricle, lungs
b. right atrium, left atrium, lungs
c. left ventricle, left atrium, body
d. left ventricle, right ventricle, body
PLEASE HELP I WILL MARK BRAINLIEST‼️
EXTRA POINTS‼️‼️‼️
Answer:
7,600 > 760 > 76 > 7.6