Answer:
d
Explanation:
<em>The correct answer would be that the food could only be made of carbohydrates.</em>
<u>Proteins contain other elements such as nitrogen and sulfur in addition to carbon, hydrogen, and oxygen while nucleic acids and triglycerides contain phosphorus in addition to carbon, hydrogen, and oxygen.</u>
The only chemical substance that contains carbon, oxygen and hydrogen is carbohydrates.
Correct option: d
Bone —> provides structure for the body.
Heart —> pumps blood through the body.
Stomach —> breaks down food into small particles.
Lung —> oxygenates blood.
The statement is true. The male and female embryos anatomically look same at five weeks of pregnancy.
In the 4th week of pregnancy the blastocysts gets implanted in the walls of uterus and develops into the placenta and then becomes an embryo. The embryo is considered starting from the point when the amniotic sac develops which is at the starting of the 5th week of pregnancy. By the 12th week of pregnancy the organs are developed such as arms and legs but the brain and spinal cord keeps developing throughout the pregnancy.
The second trimester begins at the 13th week of the pregnancy and by the 14th week the gender can be identified. So the male and female embryos are anatomically same at 5th week of the pregnancy.
Can overload the immune system, causing you to become sick, and open to sicknesses.
Answer:
With millions of different kinds of organisms in the world, scientists must find order in all of this diversity. Scientists group living organisms into one or more of a few major categories as part discipline known as taxonomy. The bodies of organisms are organized into functional systems—cells are organized into tissues, and tissues are organized into organs. Body systems carry out critical functions, such as locomotion, reproduction, digestion, and circulation. All living things on Earth are composed of the same carbon-based, molecular building blocks.