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katrin2010 [14]

4 years ago

5

O nome científico do leão é panthera leo, do gato é Felis domestcus. Os dois animais pertencem a diferentes: A:Filos B:Famílias

C:Ordens C:Espécies E:Reinos

1 answer:

STatiana [176]4 years ago

8 0

I believe the answer is : C ) Espécies

-Hope this helps.

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In eukaryotes, DNA is organized into_________which considerably complicates DNA-protein interactions during gene regulation.

lukranit [14]

Answer:

chromosomes

Explanation:

6 0

3 years ago

Your answer is CORRECT. Archaea that live by black smokers at hydrothermal vents under the ocean are often A) anaerobic due to t

Liula [17]

<h2>(A) is the correct option </h2>

Explanation:

Hydrothermal vents, also known as deep sea vents are the aftermath of a volcanic eruption due to shifting of the plates that form the Earth’s crust
Black smokers are formed due to the high pressure at this depth and temperature of the trapped water because of which there is low oxygen content of water
The black smokers emit fluids and causing it to emit chemicals such as sulfide, iron, copper and zinc
Barophiles are organisms whose survival and reproduction is optimized to high pressures, such as those in deep sea environments
Psychrophiles are microorganisms that can grow at 0 °C and below, have an optimum growth temperature close to 15 °C, and usually do not survive at temperatures above 20 °C
They are found in permanently cold environments such as the deep waters of the oceans and because they are active at low temperature, psychrophiles are important decomposers in cold climates

3 0

4 years ago

g Which of the following statements is NOT true? A. Each variable site of a gene tree can be treated as an independent character

Lady bird [3.3K]

Answer:

C. Gene trees are only useful studying the relationships of sequences from different species.

Explanation:

Gene tree traces the evolutionary history of a particular gene. It includes all the events like duplication and speciation. It helps to study the relationship of genes from different species. Often these are orthologous genes which came form the same ancestor and code for the same protein indifferent species. Gene tree also helps to study the relationship of genes in the same species. Often these are paralogous genes which evolved by duplication and code for similar but not identical proteins in the same species. Hence, the statement that gene trees are only useful for studying the relationships of sequences from different species is incorrect.

3 0

3 years ago

You are testing a new sugar replacement that you think is indigestible (and potentially useful in diet products). You feed 1 gra

enyata [817]

Answer: The % digestibility of the sugar alternative is 10.

Explanation:

First we have to know how many grams of the sugar replacement were in the total rat feces. We know 22,5% of the feces were the sugar replacement, so we use cross multiplication for that:

If 20 grams is 100% of the feces, then

x grams / 22.5% = 20grams / 100%

xgrams = (22.5 . 20grams) / 100% = 4.5grams

If each rat ingested 1gram of the sugar replacement, all five rats ate a total of 5grams.

Now we have to check how much of this sugar replacement was digested. If the rats ate 5grams and 4.5grams were present in their feces

5grams - 4.5grams = 0.5grams

This means they digested 0.5grams.

We use cross multiplication again to find out which percentage of the initial sugar replacement this represents.

If 5grams is 100% of the ingested sugar replacement, then

x% / 0.5grams = 100% / 5grams

x% = (0.5grams . 100%) / 5grams = 10%

5 0

3 years ago

Explain how you test sand sifting plastics

sveticcg [70]

You don't need to push the wheelbarrow down the beach. Instead, fill it up with sand. "It starts by going around with a bucket and shoveling and collecting all of the plastic debris that you see," said Aivazian. The water from the hoses pushes the plastics to the surface and separates them from the sand.

4 0

3 years ago