1. Kidneys contain millions of tiny filtering units called
A = urine
B =villi
C = perstalsis
D = nephrons
I think its C or D
2. Proteins are made up of substances called
A = amina acids
B = sugars
C = carbohydrates
D = starches
I think its carbohydrates
Please help last two questions
From Google:
Each kidney has around a million tiny filters called nephrons.
Proteins are macromolecules formed by amino acids.
this website is no help.
search number 2 on google
good luck..
I'd be happy to help with the remaining questions!
3. The correct answer for the first question is D - nephrons. Kidneys contain millions of tiny filtering units called nephrons. These nephrons are responsible for filtering waste materials, excess water, and other substances from the blood to produce urine.
To arrive at this answer, you can use elimination to narrow down the options given. You correctly eliminated options A (urine) and B (villi). In this case, option C (peristalsis) is not related to the kidneys' filtering function. Thus, D (nephrons) is the correct answer.
4. For the second question, the correct answer is A - amino acids. Proteins are made up of substances called amino acids. Amino acids are organic compounds that serve as the building blocks of proteins.
To determine the correct answer, you can again use the process of elimination. You have correctly eliminated options B (sugars) and D (starches). Option C (carbohydrates) is a broad category that includes sugars and starches, but it does not specifically refer to the substances that make up proteins. Therefore, A (amino acids) is the correct answer.