CF
Charlene Futrell
Answers (6)
CF
Answered
Girdling a tree involves cutting a deep groove all the way around a tree trunk. It would have the effect of
A) triggering additional auxin production and increasing leaf growth.
B) increasing the input of carbon dioxide and increasing photosynthesis.
C) interrupting the flow of minerals and stunting the growth of the tree.
D) interrupting the passage of phloem sap and killing the tree.
E) interrupting the passage of water and killing the tree.
A) triggering additional auxin production and increasing leaf growth.
B) increasing the input of carbon dioxide and increasing photosynthesis.
C) interrupting the flow of minerals and stunting the growth of the tree.
D) interrupting the passage of phloem sap and killing the tree.
E) interrupting the passage of water and killing the tree.
On Jul 15, 2024
D
CF
Answered
Stem cells are
A) formed from the formed elements in the blood.
B) found only in bone marrow.
C) found only in embryos.
D) capable of dividing and differentiating into many cell types, including neurons.
E) incapable of dividing but can differentiate into any other type of cell.
A) formed from the formed elements in the blood.
B) found only in bone marrow.
C) found only in embryos.
D) capable of dividing and differentiating into many cell types, including neurons.
E) incapable of dividing but can differentiate into any other type of cell.
On Jul 14, 2024
D
CF
Answered
Your body can use ____ to make most of the fats it requires.
A) fats
B) proteins
C) carbohydrates
D) vitamins
E) minerals
A) fats
B) proteins
C) carbohydrates
D) vitamins
E) minerals
On Jun 15, 2024
C
CF
Answered
How did Theodor Engelmann determine which colors of light were optimal for driving photosynthesis?
On Jun 14, 2024
Engelmann used a prism to split light into its component colors and shined this light on green algal filaments. After adding oxygen-requiring bacteria, he observed where the bacteria congregated. He made the assumption that bacteria would congregate wherever oxygen concentration was high, and that high oxygen concentrations would coincide with areas of active photosynthesis. The bacteria clustered near blue and red light, suggesting that these wavelengths of light produced optimal photosynthetic conditions.
CF
Answered
_______________ probably originated as outgrowths of stem tissue that developed a single vascular strand later.
On May 14, 2024
,Microphylls