Evolution of a species acts on the of the species, not the .

Where is most of a healthy person’s fat stored?

Svetach [21]

Most of a healthy person’s fat stored under the skin and around organs, but women also store it in their breasts.

5 0

2 years ago

1. How or an alkali you test to see if a liquid is an acid

nadezda [96]

Answer:

One way to test for pH is by using litmus (pronounced "LITT- muss") paper. It can be purchased at the drug store, at places where they sell swimming pool supplies, or at pet stores where they have aquarium supplies.

Blue litmus paper tests for acids, and it turns various shades of red when dipped into acidic liquid.

Red litmus paper tests for alkalis (bases). It turns various shades of blue when dipped into alkaline liquid.

Remember, we asked each of you to bring four liquids from home so that we can test them. You have lots of good stuff in little bottles and jars.

Make a heading on your paper by putting the word "ACID" on the top at the left, and the word "ALKALI" on the top to the right of the middle, so you can make two lists.

Take off the lids, and do your testing, by dipping a small piece of blue litmus paper into a jar, then writing the name of the liquid under the category into which it belongs. If the blue litmus paper turns red, that means your liquid is acid. If nothing happens, test it with the red litmus paper. If it turns blue, write the name of your liquid in the

"alkali" column.

Surely you've noticed that some acids made the paper redder than others. The dark red means the acid in that liquid is stronger than that in the liquids that turned the blue paper a light color of red. Same with the paper used for testing alkalis--the dark blue is more alkali than the light blue. You can group your liquids again, in the same columns, but this time, putting the stronger ones first on the lists.

Now we'll have a little cooking lesson. Cream of tomato soup is fun to make, and a little science is necessary to make it properly.

Cook one can of whole or diced tomatoes in a large pot until it has boiled a few minutes. Add a little salt, and if you want, a small amount of minced onion.

Of course, to have "cream" of tomato soup, you need to put in some milk.

WAIT! STOP! If you put milk into the tomatoes, the milk will curdle, and be awful. Why do you think that is?

Tomato is acid. Milk is not. They can't be mixed just like that. What do we do, then, to make "cream" of tomato soup? Science has provided us with an answer to this problem.

Baking soda is alkali. Add one teaspoon of baking soda to the tomatoes. Watch it foam! Zowie! Something is happening here! After it cooks awhile, the foam will go away, and now, you can add the milk.

It will not curdle because you neutralized the acid in the tomatoes by adding baking soda. And the soup is lovely, besides!

Explanation:

7 0

3 years ago

Read 2 more answers

In mink brown for color is dominant in silver blue for color if a heterozygous brown man is mated with a silver blooming and a o

andreyandreev [35.5K]

Answer:

It is expected that 25% of the offspring are silver blue.

Explanation:

As was shown in the question above, in a population, the brown color is dominant, while the silver blue color is recessive. Thus, the brown color can be observed in dominant homozygous (AA) or heterozygous (Aa) organisms, since the dominant allele inhibits the expression of the recessive allele. However, the silvery blue color is only observed in homozygous recessive organisms (aa), since the recessive allele is only expressed in the presence of another recessive allele.

In the figure attached below, we can see that if a heterozygous brown organism (Aa) crosses with a silvery blue individual (aa), the offspring will be composed of 50% brown individuals (Aa) and 50% silvery blue individuals.

6 0

3 years ago

For each cross, describe whether genetics or temperature determines the sex of progeny produced from eggs incubated at 35 degree

goldenfox [79]

Answer and Explanation:

In reptiles, there are two mechanisms of sex determination:

-Genetic mechanisms, determined at the fertilization moment

-Environmental mechanisms, which are temperature-dependent.

Temperature is an environmental factor that affects different processes in organisms at a molecular level, biochemical level, or physiological level. In reptiles such as lizards, snakes, turtles, crocodiles, among other, temperature influences their embryonary development, their growth, daily activities, reproduction rate, sex determination, and etc.

In lizards, it occurs that whenever eggs are incubated at low temperatures, between 22 º and 27ºC, they produce a higher percentage of males, while eggs exposed to higher temperatures, 30ºC and above, produce more females. There are only a few degrees of temperature at which exposed eggs produce males and females equally.

The importance of knowing the mechanism of organisms´ sex determination lies in how climate change may be affecting wild populations due to fluctuations in temperature.

In the exposed example, the first cross between ZZ males and ZW females, genetics is the mechanism that determines the sex of progeny produced from eggs incubated at 24 and 35 degrees celsius. While in the second cross between ZZmales and ZZ females, temperature determines the sex of progeny produced from eggs incubated at 24 and 35 degrees celsius. This is, eggs exposed to temperatures below 28ºC will produce only males, so there won't be any female in the progeny. But eggs incubated at 30ºC and over will produce females, as shown in the table.

3 0

3 years ago

An increase in earths temperature from the build up of carbon dioxide and other gases in the atmosphere is called... global warm

natima [27]

Answer:

i think

Explanation:

3 0

3 years ago