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3 years ago

As one organism eats another, toxins can be spread through the food chain? true or false

Biology

2 answers:

Goryan [66]3 years ago

8 0

Not always, the toxins may have been absorbed by the body and released in urine

amm18123 years ago

3 0

I think it is true because if another animal eats the animal that has the toxins ithat could also get them.

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Which statement best describes Earth’s outer layer underneath the surface in the image?

sergejj [24]

Hello there!!

The answer would be B. The topmost layer of the earth is the crust, which is made from rock - usually basalt and granite. The continental crust is made of solid rock, usually a mixture of the two rocks, and the oceanic crust is made mostly of hardened, once-melted basalt.

Hope this helps!

P.S. May I have brainliest, if this answer is satisfactory?

4 0

3 years ago

Psychometric scores for anxiety, depression, negative self, somatization, and hostility were combined into a single Global Sever

Paladinen [302]

Answer:

The correct answer is -

Numerator = 6

Denominator = 73

Explanation:

In F static test or table there are two sets of degrees of freedom: one for the numerator and one for the denominator. The degrees of freedom are equal to the number of observations minus one. Thus, if the sample size were 7 then the degree of freedom would be 7 minus 1

Numerator df = 7 - 1 = 6

Thus, the numerato would be - 6.

Denominator is calculated by subtracting the observation or variables from the total number of sample size.

Denominator df = 80- 7 = 73

4 0

3 years ago

A spheroidal bacterium with a diameter of 1 mm contains 2 molecules of a particular protein. What is the molar concentration?

creativ13 [48]

Answer : The molar concentration is, $6.35\times 10^{-18}mol/L$

Explanation :

First we have to calculate the moles of protein.

$\text{Moles of protein}=\frac{\text{Number of molecules of protein}}{\text{Avogadro's number}}$

Number of molecules of protein = 2 molecules

Avogadro's number = $6.022\times 10^{23}molecules/mol$

$\text{Moles of protein}=\frac{2\text{ molecules}}{6.022\times 10^{23}molecules/mol}=3.32\times 10^{-24}mol$

Now we have to calculate the radius.

Radius = $\frac{Diameter}{2}=\frac{1mm}{2}=0.5mm=5.0\times 10^{-4}m$

Conversion used : (1 mm = 0.001 m)

Now we have to calculate the volume.

$V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\times 3.14\times (5.0\times 10^{-4}m)^3$

$V=5.23\times 10^{-10}m^3=5.23\times 10^{-7}L$

Conversion used : (1 m³ = 1000 L)

Now we have to calculate the molar concentration.

$Concentration=\frac{\text{Moles of protein}}{\text{Volume}}$

$Concentration=\frac{3.32\times 10^{-24}mol}{5.23\times 10^{-7}L}$

$Concentration=6.35\times 10^{-18}mol/L$

Thus, the molar concentration is, $6.35\times 10^{-18}mol/L$

4 0

3 years ago

At the beginning of cellular respiration, energy is stored in the bonds of blank molecules.

PtichkaEL [24]

At the beginning of cellular respiration, energy is stored in the bonds of glucose molecules.

At the end of cellular respiration, energy is stored in the bonds of ATP molecules.

3 0

3 years ago

The navel is located in the ________ region of the abdominopelvic cavity.

Sholpan [36]

The abdominopelvic is composed of the abdominal cavity and the pelvic cavity. This cavity contains the organs such as liver, stomach, spleen, gallbladder, pancreas, kidney and most of the intestines along with the internal reproductive organs and urinary tract. The navel is located in the umbilical region of the abdominopelvic cavity.

Hence, the blank can be filled with 'umbilical region'.

6 0

3 years ago