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topjm [15]
3 years ago
8

The cerebral cortex accounts for approximately what percentage of the brain's total mass?

Biology
1 answer:
Lemur [1.5K]3 years ago
3 0
80% is the correct answer
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Linda was suffering from an eye infection. her doctor prescribed her eye drops that she had to use 4 times a day, and advised he
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3 years ago
Which of these is the best description of a typical organism in the plant kingdom?
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Need the descriptions in order to answer the question.
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3 years ago
The structural cells of the nervous system are called.
zavuch27 [327]

Answer:

The structural cells of the nervous system are called <u>neurons</u>.

Also, there are two main cell types; such as <u>neurons</u> and <u>neuroglia</u>.

Explanation:

5 0
3 years ago
Write a report on the ways to reduce carbon footprint by opting local produce
shtirl [24]

To many, the notion of talking about their carbon footprint is still a novel and in most instances bearing in mind that human beings are sociable creatures, the subject of carbon footprint is rarely brought up in conversations.

The term carbon footprint is defined as the amount of carbon (usually in tonnes) being emitted by an organization, event, product or individual directly or indirectly. Everyone’s carbon footprint is different depending on their location, habits and personal choice. Each of us contributes to the greenhouse gas emissions either by the way we travel, the food we eat, the amount of electricity we consume and many more.

There are people, organizations and even local governments who have begun talking about the carbon footprint and motivating each other to put in place plans to reduce their carbon footprint. But they aren’t always sure about the most effective ways forward.

Hundreds of companies are making their effort to reduce their own carbon footprint. Some ways to reduce carbon footprint:

Driving – Hybrids may still be out of reach of most drivers, mainly due to its price, but it is a necessary alternative to conventional vehicles run on petrol or diesel. Also, when driving, motorists should avoid heavily congested road networks. How well they drive also makes an impact on reducing their carbon footprint.

Instead of driving – The popular and healthy advice is to walk instead of driving. Those who have too far to travel can also use rapid bus transport networks and urban rail networks.

Less red meat – Vegetarians are already off to a good start because most of their consumptive waste can be recycled easily. However the greenhouse gas emissions from agricultural produce such as cattle and poultry are substantial. Where there is less demand surely emissions can be reduced.

Buy local – Adding to the above remark, buying local, organic produce effectively counters mass-produced agricultural outcomes. There is a dramatic reduction in the amount of plastic being used to package products and fuel usage during long road transits is also reduced.

Energy efficiency at home – All appliances that are not being used must be switched off immediately. And all electrical outlets not in use must also be switched off. Hot-water geysers should be switched off for the entire day and only turned on when needed. These are simple, yet practical lifestyle habits which are easy to adopt.

Buy green energy – It is quite possible to power your own home with environmentally-sustainable alternatives of energy production without compromising your lifestyle and waiting for national grids to be connected via green energy supply sources. For instance, technology is now available for you to install your own solar power panels.

Recycle and re-use – Vegetable produce can be converted into compost (or manure) for gardens, even vegetable gardens. Instead of buying more food containers, plastic containers sourced from the supermarket can be refashioned as ideal kitchen utensils. Also, where plastic waste is no longer required, seek out recycling depots rather than relying on your supplied garbage disposal units.

Plant a Tree – One of the best way to give it back to the environment is to plant trees. Plants absorb CO2 and release oxygen that is then used by humans and animals. According to the Urban Forestry Network, a single young tree absorbs 13 pounds of carbon dioxide each year.

5 0
3 years ago
Which type of mutation is seen in a sperm cell but not in a skin cell?
katovenus [111]

Answer:

An alteration in DNA that occurs after conception. Somatic mutations can occur in any of the cells of the body except the germ cells (sperm and egg) and therefore are not passed on to children. These alterations can (but do not always) cause cancer or other diseases.

Explanation:

when a skin stem cell harbors a cancer-driving mutation, it becomes more likely to generate two specialized skin cells when it divides. Over time, the mutated skin stem cell fails to renew itself and turns into cells that eventually slough off, allowing the skin to expel mutated cells as needed.

Errors in DNA copying during cell division and development can cause new mutations — called de novo mutations — at any time from the moment of conception. Mutations that occur in the germ line — the cells that develop into sperm or eggs — can be passed on to the next generation and, perhaps, cause disease in children.

7 0
2 years ago
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