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d1i1m1o1n [39]
3 years ago
13

Why do mountaineers become breathless as they reach high altitudes

Biology
2 answers:
Alona [7]3 years ago
7 0
There aren't enough oxygen molecules in the air are higher altitudes
nexus9112 [7]3 years ago
7 0

because as you rise the pressure increases and the air gets compressed making the oxygen to decrease and go down

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A population of animals is split in half by a river or speciation is completed at the two has a joint when you grout causes the
yuradex [85]

Due to huge effect use of Drought the population of animal get extinct.

Explanation:

Droughts can have a severe impact on the extinction of animal populations, specifically in Arid and Semi environments. Different type of climate changes can accelerate the dying of particular species or animal population.  

For extinction of population and also species Droughts play vital role. Droughts are one of such severe climatic change that leads to the extinction of species. Some life traits of specific Species make it vulnerable to drought.  

3 0
3 years ago
Ronald wakes up feeling tired and with a headache. his physician suspects he may have sleep apnea, a sleep disorder. to make a p
Goshia [24]

The doctor uses an EEG or also known as Electroencephalography, this is used to record the activity of the brain, electrically. This will help the doctor make a proper diagnosis of Ronald even if he’s sleeping and to view what type of disorder he has with the given results.

6 0
3 years ago
Zoological importance of trypanosoma<br>​
Minchanka [31]
At the West African Institute for Trypanosomiasis Research Field Station at Ugbobigha was 21·5 per cent.; this species is believed to be of major economic importance because its presence must prevent the keeping of cattle in large areas of potential grazing.

.. ⬇️

Trypanosomiasis, both of humans and of livestock, is one of the most important factors restricting economic development in Africa today. The present paper outlines how this disease is limiting agricultural, veterinary and forestry development in the Sudan, Bechuanaland and West Africa.

The present tsetse-fly distribution is reviewed. Glossina palpalis and G. morsitans occur in the south Sudan and G. morsitans in the Ngamiland district of Bechuanaland; G. morsitans, G. palpalis and G. tachinoides are the most important species in West Africa.

These tsetse flies have altered the cattle distribution in all three regions and, in addition to causing widespread disease, have created local overstocking problems in the tsetse-free grazing areas, and have enforced nomadism on breeding herds and economic loss in slaughter cattle along the trade cattle routes in West Africa.

Human trypanosomiasis is not now such an urgent problem and public health measures have led to its control in all three areas.

Increased agricultural development, which can be a successful and economic method of reclaiming land from tsetse flies, must be intensified in all three areas.

Forest conservation policy comes into conflict with tsetse control measures only in West Africa.

Detailed tsetse-fly surveys and research, on which future plans can be firmly based, are now urgently required.
7 0
3 years ago
The epidermal tissue of a plant prevents _________. predation asexual reproduction water loss none of the above
laila [671]
The epidermal tissue would form a boundary between the plant and it's environment so it probably wouldn't prevent asexual reproduction. Predation doesn't making sense because it's a plant, not an animal prey. Water loss is the best answer because the thick boundary prevents some water from evaporating.
6 0
3 years ago
What is the written description of Carbohydrates?
Vedmedyk [2.9K]

Answer: Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks. Your body breaks down carbohydrates into glucose. Glucose, or blood sugar, is the main source of energy for your body's cells, tissues, and organs.

Explanation:

7 0
3 years ago
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