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Leno4ka [110]
3 years ago
9

Polytechnic traits are determined by multiple ______received from each parent.

Biology
2 answers:
horsena [70]3 years ago
7 0

Answer:

genes

Explanation:

ZanzabumX [31]3 years ago
4 0
Answer: genes.
explanation
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2<br>147 What is si system ? write<br>down its two advantages.<br>its any​
Fittoniya [83]

Answer:

SI system consist of standard units of measurement that are defined by International System Of Units.  

Explanation:

SI stands for Standard International. It consist of total 7 units that are accepted internationally,  

 Two advantages of  SI units are:

  1. SI unit is rational system of units, that means one unit denotes one physical quantity.
  2. SI units are internationally accepted which makes researchers and scientist calculations
7 0
3 years ago
A quantity must be divided by multiples of ten when converting from a larger unit to a smaller unit. Please select the best answ
zzz [600]

Answer: False

Explanation: You're supposed to have numerically more smaller units than bigger units, since a lot of these smaller units are combined to create a single larger unit.

5 0
3 years ago
True or false, most lakes grow larger over time due to erosion?
ipn [44]

Answer: False

A lake is a water body that is surrounded by land. The water in the lake comes from melting glaciers, rain, groundwater, rivers. Lake formation also occurs when a water body is restricted to it's natural flow. Erosion due to wind  and water will limit the life of lake. As, soil removed during landslides or mudslides from hills or mountains get settled as debris at the bottom of lake will cause water pollution. Also, soil coming from agricultural field through water will carry in it fertilizers ,which will promote excessive plant and algal growth in lakes therefore, oxygen content of lake water will decrease which lead to death of animals residing in lake hence, will ultimately lead to water pollution ,which will be responsible for limiting the life of lake.

4 0
3 years ago
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A close friend has joined a clinical trial. When you ask her about the types of treatment she might be given, she tells you that
Radda [10]

Answer:

A. double-blind

Explanation:

Based on the scenario being described within the question it can be said that the type of trial that she has joined is known as a double-blind study. This is a type of study in which individuals are chosen randomly for each clinical intervention and the results are not given to the researchers until after the trial. This also includes any and all information that may influence the researchers behavior or thoughts on the study.

6 0
3 years ago
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Assume that you have 1 mL of a solution of amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of d
lidiya [134]

Answer:

42,5 mL

Explanation:

We need to use the serial dilution formula beacuse we start with a stock concentrate solution and we need to prepare a new less concentrated one.

DF=\frac{Vi}{Vf}

<u>DF in the dilution factor, Vi is the initial volume and Vf is the final volume.</u>

The first step is to have the same measurment unit so we need to convert 345 µg to mg.

we know that 1 µg equals 0,001 g, hence:

345 µg = 0,345 mg

now the final volume is 0,345 mg  protein/ mL and the inital volume is 15mg protein/mL, both of them are in the same unit so we can use the formula

DF= \frac{15mg protein/mL}{0.345mg protein/mL}

DF= 43,5 mg protein/ mL

Now since the question said that we already have 1.0mL of the amylase stock solution we need to subtract that 1.0mL to the 43,5 mg protein/mL

43,5mL-1,0mL = 42,5 mL

So, we need 42,5 mL of diluting buffer if we want a final concentration of 345 µg protein/mL (0.345 mg protein/mL)

8 0
3 years ago
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