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Travka [436]
3 years ago
12

Explain how the lungs and circulatory system work together?

Biology
2 answers:
Alika [10]3 years ago
8 0
I think it is B but they take in oxygen and release carbon dioxide wnd thats not a choice
viktelen [127]3 years ago
4 0
I think it’s definitely B the others just don’t make sense ‍♀️
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Explain briefly how these features contribute to the efficiency of photosynthesis?​
barxatty [35]

Answer:

here's your answer

Explanation:

the estimated maximum energy efficiency of photosynthesis is the energy stored per mole of oxygen evolved, 117/450, or 26 percent.

Consequently, plants can at best absorb only about 34 percent of the incident sunlight. The actual percentage of solar energy stored by plants is much less than the maximum energy efficiency of photosynthesis. An agricultural crop in which the biomass (total dry weight) stores as much as 1 percent of total solar energy received on an annual areawide basis is exceptional, although a few cases of higher yields (perhaps as much as 3.5 percent in sugarcane) have been reported. There are several reasons for this difference between the predicted maximum efficiency of photosynthesis and the actual energy stored in biomass. First, more than half of the incident sunlight is composed of wavelengths too long to be absorbed, and some of the remainder is reflected or lost to the leaves

5 0
3 years ago
How will planting genetically modified crops affect chemical use on farms?
Leno4ka [110]

The correct answer is

B. Decrease chemical use

7 0
3 years ago
(c) Name all the classes of Chordata which is warm-blooded (endothermic).
ddd [48]

The classes of chordata which are warm-blooded are birds and mammals.

Explanation:

Warm-blooded animals are those which can maintain their body temperature at a constant.  

These classes of chordates balance their internal body temperature with that of the outer environment. When the outer environment is cold, they increase their internal temperature by producing more heat; and when it is hot outside they reduce their internal temperature by cooling themselves.  

The food consumed by a warm-blooded animal fuels to maintain a constant body temperature and hence they require more food.  

Warm blooded animals cool themselves with the help of sweat glands.  

The skin and other parts like fur in birds help to keep the animals warm during winter. Birds also shed their fur in hot season to keep them light. Birds migrate to warm regions during winter.

These animals have high stamina and energy to survive environmental changes. They maintain their temperature through endothermy, homeothermy or tachymetabolism.

Whale living in water is the fish which is also warm blooded because it is a mammal.

4 0
3 years ago
Which of these is an environmental effect of farming?
gregori [183]
Hi I am a farmer and if you planet something in a spot year after year and don`t move it around you will drain the nutrients from the soil and it will not be good for farming any more so I will go with answer B.  I hope that is right.
3 0
3 years ago
Read 2 more answers
Can anybody tell me what a decomposer is
Otrada [13]
Consumer takes energy away
7 0
3 years ago
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