The heart is a pump made of muscle and that is difficult to grow in the lab.
B)
Even if researchers build a heart, there is no guarantee that a person's body will accept it.
C)
Human hearts are not like any other animal hearts so there is not source for cells and tissues.
Eliminate
D)
The heart is made up of many different types of cells that are organized into different tissues.
Answer:
I think that the correct answer for your question is D
Still adds carbon dioxide to the atmosphere
It releases the most toxins when burned
Can have gas leaks which are a safety hazard because it is colorless and odorless
It is dangerous if directly inhaled
It is not a very abundant energy source
Answer: Still adds carbon dioxide to the atmosphere, Can have gas leaks which are a safety hazard because it is colorless and odorless, It is dangerous if directly inhaled
Explanation:
Natural gas, despite being the cleanest of the fossil fuels, has some associated problems. It still adds carbon dioxide to the atmosphere, can have gas leaks which are a safety hazard, and is dangerous if directly inhaled.
Natural gas, while considered the cleanest of the fossil fuels, still has some problems associated with its use:
#SPJ2
Tt ´ Tt
tt ´ tt
TT ´ tt
Answer:
Option D, TT ´ tt
Explanation:
Allele for tallnes "T" is dominant over the recessive allele "t"
The genotype of a heterozygous tall offspring will be "Tt"
When a cross is carried out between "TT " and "tt" , the following offspring are produced -
T T
t Tt Tt
t Tt Tt
All the offspring have genotype "Tt" which is a heterogyzous allele pair.
Since "T" is dominant over "t", all the alleles would be heterozygous tall.
Thus, in order to produce 100 percent heterozygous tall offspring, the cross must be carried out between "TT" and "tt".
Option D is correct
The answer is glucose. Ready energy for any type of cell is glucose. Other molecules may be used for energy, but they are broken down before being used as an energy source. DNA is not used for energy; proteins are used only when an organism is in starvation mode.
It causes more use of heating oil to stay warm.
It produces a lot more ozone.
Radon from underground rocks is released.
It traps emissions close to Earth’s surface.