The following diagram shows a stage of a cell during mitosis. An oval has sister chromatids lined up at the upper and lower portions of the cell. Which of the following happens to the cell during the stage shown in the diagram? The chromosomes are replicated. The chromosomes start to condense. The centromere of each chromosome splits. The centrosomes line up in the middle of the cell.
Answer:
Anaphase
Explanation:
Question 9
After 60 days, 100g of a certain element has decayed to only 12.5g.
What is the half-life of this element?
A.) 20 days
B.) 30 days
с.) 8 days
D.)5 days
which 3 beak types will most likely be present in surviving species
2.
The stomata relate to by
allowing oxygen to enter the plant
Answer:
Stomata have two main functions, namely;
They allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.Explanation:
A plant's response to an environmental stimulus that indicates growth or movement is called?
Answer:
Tropism
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.
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.
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
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:
Why is lighter skin an
advantage in places
with less sunlight
Answer: Yet when a certain amount of UV rays penetrates the skin, it helps the human body use vitamin D to absorb the calcium necessary for strong bones. This delicate balancing act explains why the peoples that migrated to colder geographic zones with less sunlight developed lighter skin color.
Answer:
When a certain Strongbow amount of UV rays penetrate the skin, it helps the human body use vitamin D to absorb the calcium is necessary for strong bones. This Balancing Act explains why the people that migrated to colder Geographic zones with less sunlight develop lighter skin color.
Hope this helped!
4. why would a photosynthetic bacteria cell be classified as phytoplankton?
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.
Can someone help me with this. If you do nabot know then skip this. NO LINKS
Answer:
for part a it would be mechanical
for part b it would be warm
Explanation:
when you rub your hands together, it is mechanical energy and your hands become warm
hope this helps
Describe the characteristics of the four groups of protozoans.
Answer:
Amebas (representative: Ameba proteus)
Flagellates (representative: Trypanosoma, Euglena)
Ciliates (representative: Paramecium)
Apicomplexa (representative: Plasmodium)
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!!!
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.
can someone help me with this immediately!!!! pls don’t guess or leave links!! correct answer gets brainiest
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
What causes variations to arise in a population? *
O Change in the environment
O Random mutation in genes
O Rapid population increases
O Competition for limited resources
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:
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:
PLEASE HELP I WILL MARK BRAINLIEST‼️
EXTRA POINTS‼️‼️‼️
Answer:
7,600 > 760 > 76 > 7.6
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
Whats goat plus goat
Answer:
Baby goat.
Explanation:
Two opposite sex goats equal one baby goat.
May I have brainliest?
Answer:
lil baby goat
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:
Victor put a match on a balance and found that its mass was 6.0 grams. Then he lit the match and put it out after a few seconds.
He put the partially burned match on the balance again. This time, its mass was 4.5 grams.
Which of the following best explains what happened as the match burned?
A.
Some of the mass was destroyed by the fire.
B.
The mass of the match combined with the mass of the fire.
C.
The matter moved to a different part of the match.
D.
Some of the matter changed from solid to gas and went into the air.
Answer: It releases oxygen and heat. The answer is C
Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together the heat, the fuel, and the oxygen you get a flame. Matter does not go when something is set on fire. Matter is always the same. Burning is a chemical process. The flames are caused as a result of a fuel undergoing combustion (burning). (CC BY-SA 2.5; Einar Helland Berger for fire and Walter Siegmund for ash).
Answer:
Explanation:
heyyyyyyyyyyyyyyyyyyyyyyyyyyyy
how it going long time no talk
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
EMERGENCY!!!!!  what amino acid causes sickle cell anemia?!!!!!??
Answer:
hemoglobin
Explanation:
Would you want to have your DNA analyzed for medical purposes? Briefly explain why you feel this way.
Plss help!! ASAP I will give u brainlist
Answer:
Sedimentary
Explanation: