True!
Most energy enters ecosystems in the form of sunlight. Plants convert solar energy to chemical energy in the form of sugar. This energy will leave the ecosystem as heat energy.
Asexual reproduction produces genetically identical offspring and sexual reproduction creates variation in the offspring. When the environment changes and it affects the asexual offspring it will affect all identical copies whereas since the sexual offspring have more variation, they are more likely to survive.
The correct answer is 2.
Type 2 diabetes is a lifelong condition which involves high levels of glucose in the blood and is caused by irregularities in insulin. There are specific factors which can increase the risk of developing type 2 diabetes and these are excessive weight and fat tissue, old age, family history of type 2 diabetes, race, reduced physical activity, high blood pressure and others.
Mr. Joiner's age and race could be considered risk factors since the older you are the more increased is the risk. Also, African American people are found to be at higher risk for type 2 diabetes. However, these are risk factors which he cannot control.
The risk factors that Mr.Joiner can control are his reduced physical activity due to his sedentary life and his weight (since his BMI indicates that he is overweight). Most probably he should also try to have more healthy eating habits, by cooking healthy meals at home instead of dining out so often.
Answer:
Explanation:
The tricuspid valve separates the right atrium from the right ventricle carrying deoxygenated blood from right atrium to right ventricle
The mitral/bicuspid valve separates the left atrium from the left ventricle carrying oxygenated blood from left atrium to left ventricle
Pulmonary semilunar valves separates the right ventricle from the pulmonary artery preventing bachelor of blood.
Aortic semilunar valves separates the left ventricle from the aorta preventing backflow of blood
