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DENIUS [597]
2 years ago
6

Is a measure of how effective the cardiovascular system is in fulfilling its function in transporting life supporting substances

through the body.
Biology
1 answer:
maxonik [38]2 years ago
3 0

Answer:

Cardiac Output

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12. Normalmente, en el proceso de ósmosis, el flujo neto de moléculas de agua dentro o fuera de la célula depende de las diferen
SpyIntel [72]

Answer:

concentración de enzimas a cada lado de la membrana celular

Explanation:

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When would anaerobic respiration be used instead of aerobic respiration?
saveliy_v [14]

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When your doing a physical activity like running Anaerobic respiration is used.

3 0
3 years ago
What are agronomic characters of potato? How it is beneficial for the farmer?
Kruka [31]
Yara Crop Nutrition
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Agronomic Principles
Crop Characteristics

Potatoes produce a fibrous root system. These roots are at best no more than 24in long. Thus potatoes are shallow rooted compared to cereals for example, which can root to at least 47in depth. As a result, potatoes are often unable to exploit nutrients and soil moisture at depth within a soil profile.

While root growth occurs when soil temperatures are between 50 to 95˚F (10 to 35˚C), best, most active root development is at soil temperatures of between 59 and 68˚F (15 and 20˚C).

Leaf (haulm) growth occurs at temperatures of between 44.6 to 86˚F (7 to 30˚C) , but optimal growth is at around 68 to 77˚F (20 to 25˚C). Optimum temperatures for stolon growth are similar.

effects of soil temperature on root development
The potato tuber is an enlarged portion of the stolon. The initiation of this tuber is triggered by short day lengths (photoperiods), and involves growth hormones. The colder the soil temperature, the more rapid the initiation of tubers and the greater the number of tubers formed. The optimum soil temperature for tuber initiation is 59 to 68˚F (15 to 20˚C).

Under these conditions, the potato plant will have short stolons and shoots. Longer day lengths delay tuber initiation and favor the growth of the stolon and shoot. High temperatures also reduce tuber formation. Late varieties seem to be more sensitive to long day lengths or high temperature conditions.

Low nitrogen and high sucrose levels in the plant favor the formation of more tubers.

Once formed, tubers grow rapidly, reaching a maximum rate of up to 1,249 lb/ac/day in temperate climates. See figure below:

potato tuber growth rate, germany
Physiological Aging

By planting sprouted seed, crop growth can be advanced. The magnitude of this response and its effect on increasing crop yield is related to the physiological age of the seed at planting.
6 0
3 years ago
What do all ecosystems have ?
Phoenix [80]
I pretty sure that it include both biotic and abiotic. But "C" is wrong. Now your answers are between "A,B and C"
5 0
3 years ago
How many species of insects are there as of 2017?
Slav-nsk [51]
There are about 950,000 species of insects known but estimates range as high as 2-10 million which means that there are probably many species not yet known which have probably gone undetected so far in perhaps more remote parts of the world.
7 0
3 years ago
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