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Ira Lisetskai [31]
2 years ago
14

Why are humans successful in terms of evolution

Biology
1 answer:
Rasek [7]2 years ago
6 0
We live long lives compared to a lot of animals, we are at the top of the food chain, we are omnivores and have a larger variety of foods we can eat that’ll nurture our bodies
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5. Design an experiment that
notsponge [240]

Explanation: this experiment is long term which means patience is compulsory. you need to have a wild sloth and a domesticated sloth adopted right at their birth (he should be in a controlled environment that mimics the wild). your domesticated sloth shouldn't have the algae. at their middle age, you should compare them with them from every aspect.

3 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
Over the course of the semester, I have detailed many of the environmental problems that face us today. I have also told you abo
sveta [45]

Answer:

Waste disposal

Why? Contributes to the greenhouse effect and causes pollution

Solution: If you bring your lunch to school, package it in reusable containers instead of disposable ones. Carry food in reusable plastic or cloth bags, and bring drinks in a thermos instead of disposable bottles or cartons.

Solution: Compost leftover food

Hope this helps

5 0
3 years ago
As our global population rises; so does our appetite for protein. Our meat consumption habits take a serious toll on the environ
Volgvan
<h3>Meat consumption and environment</h3>

Explanation:

Increase in population rises protein demand. Many people meet their dietary protein requirements mainly from animal sources by consumption of meat and meat products like meat, eggs, and processed meat products.

Increased meat consumption leads to increase in global warming. Increased meat consumption raises the demand for meat and animal farming like cattle, poultry and fish farming.

Farm animals release methane through their waste into the environment. Methane is one of the most potential greenhouse gases that cause global warming.  

Animal farming practices requires a lot of water and hence depletes natural water sources. Moreover, the effluent drainage from farmlands pollutes the land as well as natural ground water sources with methane and other pollutants including pathogens and renders the natural sources unusable.

Further, farm animals like cows and goats grazes farmlands and destroys the green cover which helps in carbon sequestration.  

3 0
3 years ago
1 point
swat32

Answer:

so, u see

Explanation:

yes exactly

4 0
3 years ago
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