1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Simora [160]
4 years ago
13

Why is cell division important after fertilization?

Biology
1 answer:
defon4 years ago
4 0

Answer:

Perhaps most importantly, without cell division, no species would be able to reproduce—life would simply end (or would have ended a long time ago). Every human, as well as every sexually reproducing organism, begins life as a fertilized egg (embryo) or zygote.

You might be interested in
Which of these sentences is true about the virus?
Svetllana [295]
The sentence which is true or a fact about the virus is the sentence in letter B. Viruses can reproduce only within other cells. <span>Viruses are intracellular obligate parasites they can not replicate or express the genes with out living host. </span>
<span>viruses are acellular so they have to rely on host cellular machinery for reproduction. </span>
<span>viruses doesnot contain any enzymes for reproduction</span>
3 0
3 years ago
What is the impact of developing and using rock, mineral, and energy resources on earth's living and non living systems
77julia77 [94]

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:

<u>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</u>. 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.

<u>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.</u> 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. <u>They may then end up disposing of them in rivers or coastal waters.</u>

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 <u>contamination of soils due to mineral materials and toxic substances</u>.

<u>Also, the production and use of energy is the main cause, together with transportation, of greenhouse gas emissions, the gases responsible for climate change</u>. Consequences of climate change are increased temperatures, rising sea levels and reduced rainfall.

The current model of generation, transport and consumption, <u>absolutely dependent on fossil fuels, is unsustainable</u>. 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 <u>the cause of the deterioration and destruction of forests, lakes and other ecosystems</u>. Another example are the N<u>uclear power plants which produce high-level radioactive wast</u>e (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.

6 0
3 years ago
1. It is the state of matter that is very compressible a. liquid b. solid c. gas d. Plasma NEED HELP GUYS
fomenos

Answer:

C

Explanation:

In general, Gases are the most compressible and solids are the least compressible.

6 0
3 years ago
Read 2 more answers
Applying fungicides to plants may result in the plants showing signs of phosphorus deficiency. What is the most likely explanati
Umnica [9.8K]

Answer:

The fungicide destroys mycorrhizal symbionts.

Explanation:

Mycorrhizal symbionts is the symbiotic association that is present between plants and fungi. Plants provide food materials in the form of sugar to the fungi while fungi fixes phosphorus for the plant that is present in the soil in unavailable form. When fungicide is sprayed, it kills the fungi present in the soil and deficiency of phosphorus occurs in plants.

3 0
3 years ago
Identify the true statements below.
Andrei [34K]

Answer:

The activation energy required for an exploding firework is less than the activation energy required for a burning candle.

Explanation:

I did this in class. The height of the activation is lower for the firework than the  burning candle.

3 0
3 years ago
Other questions:
  • This is the part of a biogeochemical cycle where nutrients are rapidly moving throughout the systole. The elements tend to only
    14·1 answer
  • Name the color of light that is least effective in photosynthesis.
    11·1 answer
  • Before pavlov conditioned a dog to salivate in response to a tone, the tone was a(n):
    14·1 answer
  • How is the skin of a reptile an improvement of the skin of an amphibian?
    6·1 answer
  • Which gland is the master gland in human body
    9·2 answers
  • Symmetry is...........................
    6·2 answers
  • VERY EASY QUESTION. WILL MARK BRAINLIEST When is the peak hurricane season for the Atlantic Ocean Basin, and why do hurricanes p
    10·1 answer
  • What would happen to the light independent reactions if you put a plant in a dark closet for many days?
    9·1 answer
  • Two ramps of equal height are placed 1 m apart, and balls of equal mass are released from the top of each ramp. What happens to
    15·2 answers
  • If a scientist is conducting an experiment about obesity and asks a group of people to stop eating saturated fat, that group of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!