7) What percentage of ppm of dissolved oxygen indicates good water quality?

a) 6.7
b) 8
c) 4.5
d) Below 4.5

Answer:

El árbol de la vida o árbol universal de la vida es una metáfora, modelo y herramienta de investigación que se utiliza para explorar la evolución de la vida y describir las relaciones entre organismos, tanto vivos como extintos, como se describe en un famoso pasaje de El origen de las especies (1859) de Charles Darwin.2

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Answer:

If the hanging wall moves down relative to the footwall, the fault is a normal fault. Normal faults are caused by tensional stress, or stress that pulls rocks apart

Explanation:

Answer:

Gravity

Explanation:

Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.

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Answer:

In the eukaryotes

Explanation:

Answer and Explanation:

Crossing over is the switching of genetic material (DNA), which occurs in Prophase 1.

This all happens in Meiosis, which is the process of the formation of sperm and egg cells.

The paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

#teamtrees #WAP (Water And Plant)

Answer:

Since oxygen has a higher electronegativity than hydrogen, the electrons of the molecule tend to group closer to the oxygen than to the hydrogen atoms. as well as , water is said to be a "polar" molecule, which means that there is an uneven distribution of electron density.

thats what i found sorry if its confusing

Answer:

Veins transport Deoxygenated blood

Answer:

When ecologists travel to regions where they are not familiar with the plants and animals, they read field guides about the flora and fauna. Many of these guides have photographs, keys to species recognition, and descriptions of size, color, and general appearance.

Answer:

Independent assortment and crossing over contribute to diversity within a population's gene pool. These processes occur during meiosis and result in the recombination of DNA.

Explanation:

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The three pillars of Darwin's theory of evolution are genetic variety, fitness, and adaptation. Overproduction and competition are other crucial components of this process.

Charles Darwin's theory of evolution is known as natural selection. Due to the limited supply of resources in nature, animals have inherited traits that aid in both survival and reproduction.

Typically, produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.

Natural populations exhibit variation, and every population has more offspring than the environment can support. The result of this Overproduction is that those people who have the highest level of environmental genetic fitness will have offspring who are better able to compete in that environment.

Therefore, Genetic variation, fitness, and adaption are all factors in Darwin's theory of evolution.Overproduction and competition are other crucial components of this process.

Learn more about natural selection here:

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Answer:

an overthrow of a government or social order by force , in favor of a new system.

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Answer:

C.

Explanation:

the heat-killed bacteria had passed their disease causing ability to the harmless strain

Answer:

Girls have two X chromosomes  and boys have chromosomes (XY).

Explanation:

Girls have two X chromosomes (XX), and boys have one X and one Y chromosome (XY). Whether a baby will be a boy or a girl is determined at the time of conception.