Question 47 Unsaved

The area of land on which all runoff, sediment, and water-soluble substances flow to a single surface water outlet (like a river or stream) is called

1)

recharge zone

2)

aquifer

3)

buffer strip

4)

watershed

What cell structure is mainly responsible for releasing energy from food molecules in some single celled organisms?

One substance has no membrane transporters to move it but can diffuse freely through open leak channels if there is a concentration gradient. Initially, this substance's concentrations in the filtrate and extracellular fluid are equal.

Which of the following is true about a plant with the genotype AABbcc? a. It is heterozygous at two loci. b. It is homozygous at two loci. It is triploid. c. It will not express the recessive c allele. d. It has recessive alleles at three loci.

What structure in the human body allows food to pass from the mouth to the stomach. It is surrounded by rings of cartridge

Выберите верные утверждения: 1. Особенно хорошо развиты у птиц мозжечок и полушария мозга 2. У птиц, обычно, функционируют оба яичника. 3. За счет канатиков зародышевый диск всегда расположен сверху 4. У уток птенцы выводкового типа.

What accounts for genetic biodiversity existing in modern multicellular organisms?

Torri and Tamara are both performing scientific investigations on the learning capabilities of mice. In Torri's experiment, she sets up two knobs in a cage with a mouse. When the mouse touches the knob on the left, it receives a small shock.

What did Chargaff discover while studying bases in the DNA of organisms?

Russia's system of government and identify its basic structure.

Which statement about the light microscope is correct?