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Crazy boy [7]
3 years ago
14

A well tested concept that explains a wide range of observations. True or False

Biology
1 answer:
leonid [27]3 years ago
3 0
In relation to a theory, then the answer is True
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Replicate the following segment: TAC-TGA-GGG-CTG-ATT<br><br>Somebody please help me with this.<br>​
torisob [31]

Answer:

AUG ACU CCC GAC UAA (mRNA)

UAC UGA GGG CUG AUU (tRNA)

5 0
3 years ago
A student mixes strawberry kool-aid and water. A pH meter is used to measure the pH of 5.4. What kind of solution is strawberry
Anna35 [415]
The strawberry Kool-Aid is an Acid
7 0
3 years ago
What are two important processes that occur during the prophase?
Sergio [31]

Answer:

In prophase, the nucleolus disappears and chromosomes condense and become visible. In prometaphase, kinetochores appear at the centromeres and mitotic spindle microtubules attach to kinetochores. In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber.

Explanation:

7 0
3 years ago
Determine the new concentration, in mg/mL, of the starch solution you diluted in the Erlenmeyer flask. Recall from the Procedure
Semmy [17]

Answer:

0.05 mg/mL  ( B )

Explanation:

Given data:

20 mg/ml starch

2% solution = 2g of solute is in 100g of solvent

<u>Determine the new concentration in mg/ml </u>

Dilution equation = C1V1 = C2V2

new concentration ; applying the dilution factor

dilution factor = 1 : 400 ; ( 2 /400 )g = 0.005 g of solute is present in every  100 mL

∴ new concentration = 0.00005 g / 1 mL * ( 1000 mg / 1g ) = 0.05 mg/mL

6 0
2 years ago
Online Transpiration Lab Activity Go to http://www.phschool/science/biology_place/labbench/lab9/intro.html Read through all sect
andrew-mc [135]

Answer:

1) pathway taken by water

water is absorbed from the soil, through the root hair cells and is transported by the xylem vessel up the stem to the leaf and/or flowers. From the leaf, some water is lost to the atmosphere as vapors escape out through the stoma present in the lower epidermal layer of the leaves.

2) water potential gradient

water potential refers to the concentration of water present. A gradient forms when there is a difference between the concentrations of water in two regions separated by a partially permeable membrane.

Hence, water moving down a water potential gradient means that it goes from a region of high water potential to a region of low water potential.

3) There are tiny openings on the lower side of the leaves called as stomata (plural: stoma) that allow for gaseous exchange to occur. These openings are controlled by guard cells which are open during the day and close during the night.

Hope that answers the question, have a great day!

8 0
3 years ago
Read 2 more answers
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