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V125BC [204]
1 year ago
14

Embryology concerns the structural changes that occur in an individual from conception through old age. true false

Biology
1 answer:
Jlenok [28]1 year ago
7 0

False: Development of gametes and embryos.

Development is a human process in the sense that people, not material factors, drive development. The energy and ambition of those who seek development are the driving forces behind the development. People's consciousness can determine the direction of development.

- Can be a source of employment. - Contribute to national development and promote the economy. - Helps develop infrastructure. - Contribute to the preservation of cultural heritage.

Helps businesses attract and retain top talent, improve productivity, and help businesses generate more profit through learning and development.

learn more about Development here.  brainly.com/question/11352260

#SPJ4

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How does continental drift cause climates to change ?
My name is Ann [436]
Continetal drift is land masses that mover over the surface of the earth.. for example a land mass might move from an equatrioal region of the earth and then to an antarctic region so therefore it recives an antarctic climate instead of a equatrial one....
4 0
3 years ago
Which of these is always part of using the scientific method?
MrRa [10]
Since you provide no options, here are the usual parts of scientific method :

- Idea / question which answer you want to find out
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6 0
3 years ago
The bone are composed of two parts which are what?
zalisa [80]

Answer:

the shaft and the bone marrow

Explanation:

A hard outer layer called cortical (compact) bone, which is strong, dense and tough. 2. A spongy inner layer called trabecular (cancellous) bone. This network of trabeculae is lighter and less dense than compact bone.

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6 0
3 years ago
Which of the following best describes meiosis?
Art [367]
Meiosis is when the cells divide so I’m going. To say it is b
5 0
3 years ago
A certain buffer is made by mixing a weak acid HA and its conjugate base A–. When HA is present at a concentration of 0.5 mM and
MAVERICK [17]

Answer:The ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02 is 0.69

Explanation:

The dissociation constant for formic acid = K_a=1.8\times 10^{-4}

Concentration of HA= 0.5 mM

Concentration of A^-= 0.1 mM

pH = 6.16

First we have to calculate the value of K_a.

Using Henderson Hesselbach equation :

pH=pK_a+\log \frac{[A^-}{[HA]}

Now put all the given values in this expression, we get:

6.16=pK_a+\log (\frac{[0.1]}{0.5})

pK_a=6.86

To calculate the ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02.

Using Henderson Hesselbach equation :

7.02=6.86+\log \frac{[A^-]}{[HA]}

7.02=6.86+\log \frac{[A^-]}{[HA]}

\frac{[A^-]}{[HA]}=1.44

\frac{[HA]}{[A^-]}=0.69

Thus the ratio of the concentrations of HA  and A^- when the buffer has a pH of 7.02 is 0.69

7 0
3 years ago
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