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4 years ago

What is difference in DNA in normal people and people with sickle cell

Biology

1 answer:

stiv31 [10]4 years ago

3 0

Their cells have a mutation normal cells do not.

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The anterior and posterior lobes of the pituitary differ in that _____.

xenn [34]

Answer:

-The posterior pituitary does not secrete its hormones but acts as an extension of the hypothalamus, storing those hormones.

-The anterior pituitary secretes its hormones (predominantly tropic hormones).

Explanation:

8 0

2 years ago

Which describes capillaries? A. Allow diffusion to occur. B. Are strong and flexible. C. Are made of three cell layers. D. Carry

Alika [10]

Answer:

Explanation:

carry blood to the heart

8 0

3 years ago

A denisty of a bottle weighs 0.25N when empty & 0.75N when filled with water & 0.65N when filled with alcohol. Calculate

Ulleksa [173]

Answer:

$0.05\times 10^{-3}\ \text{m}^3$

$800\ \text{kg/m}^3$

Explanation:

$W_b$ = Weight of bottle = 0.25 N

$W_w$ = Weight of water = $0.75-0.25=0.5\ \text{N}$

g = Acceleration due to gravity = $10\ \text{m/s}^2$

$\rho_w$ = Density of water = $1000\ \text{kg/m}^3$

Mass of water

$m_w=\dfrac{W_w}{g}\\\Rightarrow m_w=\dfrac{0.5}{10}\\\Rightarrow m_w=0.05\ \text{kg}$

Volume is given by

$V_w=\dfrac{m_w}{\rho_w}\\\Rightarrow V_w=\dfrac{0.05}{1000}\\\Rightarrow V_w=0.05\times 10^{-3}\ \text{m}^3$

Volume of the bottle is $0.05\times 10^{-3}\ \text{m}^3$ .

This means that the alcohol will take the same amount of volume.

$W_a$ = Weight of alcohol = $0.65-0.25=0.4\ \text{N}$

Mass of alcohol

$m_a=\dfrac{0.4}{10}\\\Rightarrow m_a=0.04\ \text{kg}$

Density is given by

$\rho=\dfrac{m_a}{V_w}\\\Rightarrow \rho=\dfrac{0.04}{0.05\times 10^{-3}}\\\Rightarrow \rho=800\ \text{kg/m}^3$

Density of alcohol is $800\ \text{kg/m}^3$

7 0

3 years ago

What is found in a "cloud' around the core of the atom?

Vsevolod [243]

So the protons and neutrons are located in the center while the electrons are found around that in the "cloud"

6 0

3 years ago

Need some help. pls answer, will mark brainliest for best answer

Bingel [31]

Answer:

Beacuse it is getting hotter and <em>there is more heat than normally.</em>

Explanation:

the temperature is increasing and the reaction is getting higher beacuse of the heat. You can see it die down more probably beacuse the temperature just stopped and that is now your based temperature.

Hope this helps you out!

<3 me if it does

6 0

3 years ago