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Oksana_A [137]
3 years ago
15

Which of the following scenarios illustrates a product of direct use?​

Biology
1 answer:
Leno4ka [110]3 years ago
4 0
Wish I knew wish I knew wish I knew wish I knew wish I knew wish I knew
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PLEASE HELP!
PIT_PIT [208]

Answer:

All the ones listed below are true

6 0
2 years ago
Please help!
Gala2k [10]

Tundra and deserts are two biomes of the world which represent the extreme form of climates. Tudra is the coldest region of the earth while desert represent the hottest zones of the earth. But whats  the most common thing in these extreme zones is that they receive very less precipitation throughout the year (less than 25 cm).

Therefore, flora of the desert and Tundra have some special adaptations to survive without sufficient amount of water.

Let's see what are those:

  • Tundra:
  1. The height of plants growing in Tundra is very less like lesser than 1 foot. The short structure of the plants helps them to get more heat from the dark soil and helps to survive freezing. The short height lets them stay protected from harsh effects of cold or snow.
  2. The plants in tundra grow in groups or clumps that helps them in surviving the attacks of ice particles or snow balls. For example: lousewort and Arctic crocus.
  3. Some flora of tundra has ability to grow even in the complete lack of water for several years.This is because they have waxy layers that cover the leaves and store maximum water for the periods of no availability.
  4. Some plants have hair on the surface of stems that trap maximum heat and protect the plant from heat and extreme forms of wind. For example: Arctic crocus.
  • Desert
  • Desert plants not only have physiological but also morphological adaptations to survive heat stress and shortage of water. Their stems, roots and leaves are fleshy and help them to store water for a large period of time. For example: Cactus
  • Many desert plants like <em>xerophytic bromeliads</em> and <em>epiphytic orchids </em>contain a system alternate of photosynthesis called CAM (Crassulacean Acid Metabolism). This process helps the plant to open the stomata at night for exchange of gases and accumulate CO2. In day, stomata are closed and the CO2 is used for photosynthesis. This is an adaptation, because during night when temperature is low, CAM plants lose less water as compared to what normal plants lose during day.
  • Some plants have extremely large roots that absorb maximum water from soil and compensate the plant's loss of water due to heat. For example: Phreatophytes.
  • Some Perennial plants  have adapted the mechanism to stay in condition of rest or dormant during extreme heat. They get back to normal life when weather become a bit better.

 Hope it helps! :)



8 0
3 years ago
Can your body make antibiotics for pathogens thaf you have never been in contact with ? Why or why not ?
mafiozo [28]
No because if your body has never experienced  it before it will not no what to do and most likely the body will just send out/produce the other common antibodies or cells
3 0
3 years ago
Read 2 more answers
9. What is always true of a binary compound? It has a double bond. It has two elements. It has covalent bonds. It has two atoms.
juin [17]

Answer

Correct answer is :It has two elements

Explanation

A binary compound is a compound that is made up of two of the elements in the periodic table. Some examples of binary compounds are NaCl and N_2O. This means that a binary compound can have more than 2 atoms as in the case of hydrogen oxide. Some binary compounds are ionic as in the case of sodium chloride.This shows that they do not necessarily have to have covalent bonds. This also rules out the possibility that they may always have double bonds as ionic compounds are bound together by ionic bonds. The only thing that will always be true of binary compounds is that they will always have 2 elements.

7 0
3 years ago
Read 2 more answers
The potential difference across a resting neuron in the human body is about 70 mv, and the current in it is approximately 200ua.
MrMuchimi

I = 200 ua

V = 70 mV

Power = ?

Formula: Power = IV

Solution:

Power = IV

= ( 200 x 10^-6 A ) x ( 70 x 10^-3 V )

Power = 1.4 x 10^-5 Watts

The power that the neuron release is 1.4 x 10^-5 Watts

5 0
3 years ago
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