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coldgirl [10]
3 years ago
7

coronary heart disease is much less common in some countries than it is in the united states. What facts might account for this

difference?
Biology
1 answer:
Lemur [1.5K]3 years ago
3 0
Just based on common evidence....I think it is because of all the fast food restaurants, we work a lot therefore we resort to eating out, fast food places have dollar menus, and we also use motorized transportation to much as well.  Most of the cities are not equipped with things like bicycle lanes.
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How long does it take for a water bottle to decompose?.
Elodia [21]

Answer:

450 years

Explanation:

well, according to some researchers, They estimate that due to the PET used in objects like plastic bags, plastic water bottles and plastic straws, it could take upwards of 450 years to decompose.

8 0
3 years ago
Can you identify the ploidy of different structures? drag the terms on the left to the appropriate blanks on the right to comple
Leni [432]

Answer:

1. The gametophyte generation is haploid.

2. The embryo is diploid.

3. The megaspore is haploid.

4. The sporophyte generation is diploid.

Explanation:

1. Gametophyte- The gametophytic generation is the structure which produces gametes in the plant. Since the gametes are haploid, therefore, the gametophyte us considered the haploid.

2. Embryo- The embryo is formed after the fusion of fertilization when zygote develops, therefore, is considered diploid.

3. Megaspore- the big size spore which is formed from by the meiotic division of the megasporocyte, therefore, is considered haploid.

4. Sporophyte- the sporophyte generation develops from the embryo which is diploid therefore is considered diploid.

8 0
3 years ago
99 Points! Please Help Me! I am begging you!
lisabon 2012 [21]

Sound waves are both compressional and longitudinal, (although we frequently draw them as transverse waves).

Longitudinal waves are where the particles of matter collide into one another, pushing them into the next and then oscillating back. This is how sound travels. This is also why sound can only travel through a medium, it cannot travel through a vacuum, as is shown here:

3 0
3 years ago
Read 2 more answers
One of the most important outcomes of extreme stress or tension is the effect on the ___________ system, which usually protects
julia-pushkina [17]

Answer:

Immune

Explanation:

The immune system helps to protect our body from all sort of organisms ranging from invading toxins and micro-organisms which negatively affects an individual’s health and well being.

Stress has an adverse effect on the immune system such that it weakens and suppresses the functions of the required antibodies in the body system. This is the reason why many aged people fall sick because they have gone through more stress when compared to younger people.

6 0
3 years ago
Anyone know the answer
Mrac [35]
Answer is D.
Photosynthesis in plants converts solar energy into chemical energy using electrons and protons from water. ... In the energy-transduction reactions, solar energy is converted into chemical energy in the form of two energy-transporting molecules, ATP and NADPH
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3 years ago
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