PLEASE HELP ME, I REALLY NEED THIS ANSWERS NOW WORTH 130 1.) You work for the Minnesota DNR and are doing research on the pH tolerance of invasive species found in Minnesota lakes. Below are the results you found. Which species has the best / highest tolerance to pH changes?

- Zebra mussel (6.5 – 9.0)

- Eurasian water milfoil (5.4 – 11.0)

- Curly leaf pondweed (6.6 – 9.9)

- Silver Carp (5.5 – 9.0)

2.) What type of element is present in a supernova gas cloud that is not present in a smaller star like our sun?

Hydrogen

B)Gold

C)Helium

D) Carbon

3.) An average tree can absorb about 48 pounds of carbon dioxide from the atmosphere each year. If this tree is cut down, what happens?

A) 48 pounds of carbon dioxide is added to the atmosphere per year. Atmospheric oxygen levels decrease.

B) 48 pounds of carbon dioxide is taken out of the atmosphere per year. Atmospheric oxygen levels decrease.

C) 48 pounds of carbon dioxide is added to the atmosphere per year. Atmospheric oxygen levels increase.

D) 48 pounds of carbon dioxide is taken out of the atmosphere per year. Atmospheric oxygen levels increase.

1)  Eurasian water millfoil

               2) Gold

                3) A

Explanation:

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.