The ice has less density than liquid water, so it floats on the water surface. Therefore during the winter all the lakes and rivers are frozen only at a top. Deeper layers of water are cold, but still liquid and it allows fish and other organisms to survive. Moreover, the ice cover provides temperature isolation so liquid water beneath the ice has more or less constant temperature (around 4 dgr Celsius)
Answer:
i would say natural because the branches grafted together they weren't made to go together by a human
Explanation:
Answer:
a. 30 cm³
b. 4.33 g/cm³
Explanation:
a Volume of the object = l*w*h
l = 5 cm
w = 2 cm
h = 3 cm
Volume of object = 5*2*3 = 30 cm³
b. Density of the object = mass of the object / its volume
Mass of object = 130 grams
Volume = 30 cm³
Density of the object = 
The Vmax of the enzyme is 12 μmol⋅min−1
We use Michaelis-menten equation, which is given by;

Where v is velocity of reaction
Vmax = maximum rate achieved by the system
[S] = concentration of a substrate
K
= Michaelis constant
Given V
= 10
[S] = 5km
Now, we calculate Vmax:
10
= 
Km = 1


=12 μmol⋅min−1
Learn more about Michaelis-menten kinetics here:
brainly.com/question/15180587
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A neutron has no charge
<em>NEUT</em>RAL = NONE
well thats how I remember it anyway
SO ITS NUMBER 2