What percentage of mass of human body is made up of oxygen

Answer:

They inherited a recessive allele from both their parents

Explanation:

:)

Answer:

false

Explanation:

please mark brainliest

Answer:

This is because in biology, energy is transferred from organism to organism and some energy is lost along the way. Each energy transfer results in a loss of energy, so that energy is always at a lower level and can never be returned to its original high energy level. On the other hand, chemical elements can form products, then that reaction can be reversed and break back down into reactants. Additionally, the law of conservation of matter says that matter can't be created or destroyed, only transferred from one form to another.

Answer:

C

Explanation:

Energy flows while matter cycles

Answer:

The correct answer is - genetic drift takes place due to disaster in favor of a green wing patch.

Explanation:

In this given scenario there is disaster happened that wiped out 50% of a population of birds in which half had green wings and the rest half had blue wing birds before the catastrophe.

Due to this sudden catastrophe, the genetic drift occurred and also reduced the population to half and the ratio of both types of birds changed and favored the green wings as they are better adapted for the new conditions.

Answer:

Water is important in chemical weathering because most substances dissolve in water.

The process of dissolving breaks up the minerals in the rock into small pieces. The small pieces mix with water to form.  

Acids are also agents of chemical weathering and cause more chemical weathering than pure water does.

Answer:

Water

Explanation:

Just because.

Actually, most substances dissolve in water, and it dissolves more substances than any other liquid.

.

Answer:

fossil, limestone, sandstone, weathering and deposition

Answer:

no

Explanation:

kinetic energy is the energy your body makes from being in motion, temperature doesn't change your amount of kinetic energy

Answer:

False

Explanation:

It depends on what species of frog it is though.

Answer:

B. Passive goes from low to high concentration

Explanation:

Hope this helps

Answer: Its a convergent boundary and they move inwards, They create mountains.

The other is a transform boundary and they slide each other like friction, they create earthquakes.

The last one is a divergent boundary and they move outwards, they can create seafloor spreading.

Answer:

Tectonic plates moving

Explanation:

Answer:

Members of the swine species always have the same number and kinds of chromosomes

Explanation:

The swine species always have their food habits in common. They are omnivorous and they also due to ancestry have the typical type of genes and chromosomes inscribed in it. Hence swine are used in research industry nowadays like dogs and monkeys.

Wild boars, hogs and pigs all have just small differences externally. Their anatomy and physiology are identical. They are all mammals. They are highly intelligent and talented ones. They have their physiology identical to ours which helps in research scientist to experiment and finds cure for human.

Answer:

biological definition of species, which works for sexually reproducing organisms, is a group of actual or potential interbreeding individuals. There are exceptions to this rule. Many species are similar enough that hybrid offspring are possible and may often occur in nature, but for the majority of species this rule generally holds. The presence in nature of hybrids between similar species suggests that they may have descended from a single interbreeding species, and the speciation process may not yet be completed.

Given the extraordinary diversity of life on the planet there must be mechanisms for speciation: the formation of two species from one original species. Darwin envisioned this process as a branching event and diagrammed the process in the only illustration found in On the Origin of Species (Figure 1a). Compare this illustration to the diagram of elephant evolution (Figure 1b), which shows that as one species changes over time, it branches to form more than one new species, repeatedly, as long as the population survives or until the organism becomes extinct.

Explanation:

For speciation to occur, two new populations must be formed from one original population and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed. Biologists have proposed mechanisms by which this could occur that fall into two broad categories. Allopatric speciation (allo– = “other”; –patric = “homeland”) involves geographic separation of populations from a parent species and subsequent evolution. Sympatric speciation (sym– = “same”; –patric = “homeland”) involves speciation occurring within a parent species remaining in one location.

Biologists think of speciation events as the splitting of one ancestral species into two descendant species. There is no reason why more than two species might not form at one time except that it is less likely and we can conceptualize multiple events as single splits occurring close in time.

Allopatric Speciation

A geographically continuous population has a gene pool that is relatively homogeneous. Gene flow, the movement of alleles across a species’ range, is relatively free because individuals can move and then mate with individuals in their new location. Thus, an allele’s frequency at one end of a distribution will be similar to the allele’s frequency at the other end. When populations become geographically discontinuous, it prevents alleles’ free-flow. When that separation lasts for a period of time, the two populations are able to evolve along different trajectories. Thus, their allele frequencies at numerous genetic loci gradually become increasingly different as new alleles independently arise by mutation in each population. Typically, environmental conditions, such as climate, resources, predators, and competitors for the two populations will differ causing natural selection to favor divergent adaptations in each group.

Answer:

Guy on top is correct. It is 100%

Explanation:

As predicted by the Punnett square, 100% of the offspring have black fur for this cross.

When two individuals with the genotype BB (homozygous dominant for black fur color) are crossed, their Punnett square will look like:

 | B  | B  

--|----|----

B | BB | BB

--|----|----

B | BB | BB

All the offspring will have the genotype BB, which means they will be homozygous dominant for black fur color. Therefore, all the offspring will have black fur.

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Answer:

Read Below

Explanation:

Wallace is often referred to as the father of modern biogeography. 6. The finger bones inside manatee and whale flippers are evidence that these living species are modified forms of older species.

Answer:

A mouse would obtain energy from plants that have vitamins and minerals, and protein from things like nuts. An owl would get protein from eating a mouse and vitamins and minerals from the things the mouse ate.

Explanation:

It's all one big circle. These nutrients would provide the energy needed to perform everyday tasks.

Answer:

It's most likely to be D.

Explanation:

Hope this helps.

Answer: https://rb.gy/rb1nlh copy that into search browser

Explanation:

DNA replication is a truly amazing biological phenomenon. Consider the countless number of times that your cells divide to make you who you are—not just during development, but even now, as a fully mature adult. Then consider that every time a human cell divides and its DNA replicates, it has to copy and transmit the same sequence of 3 billion nucleotides to its daughter cells. Finally, consider the fact that in life (literally), nothing is perfect. While most DNA replicates with fairly high fidelity, mistakes do happen, with polymerase enzymes sometimes inserting the wrong nucleotide or too many or too few nucleotides into a sequence. Fortunately, most of these mistakes are fixed through various DNA repair processes. Repair enzymes recognize structural imperfections between improperly paired nucleotides, cutting out the wrong ones and putting the right ones in their place. But some replication errors make it past these mechanisms, thus becoming permanent mutations. These altered nucleotide sequences can then be passed down from one cellular generation to the next, and if they occur in cells that give rise to gametes, they can even be transmitted to subsequent organismal generations. Moreover, when the genes for the DNA repair enzymes themselves become mutated, mistakes begin accumulating at a much higher rate. In eukaryotes, such mutations can lead to cancer.

Answer:

baby #1 goes to family 2

baby #3 goes to family 1

and baby #2 goes to family 3

Explanation:

its simpler then it looks☺

Baby with blood group O belongs to Mr. and Mrs. Jones, baby with blood group B belongs to Mr. and Mrs. Williams, and baby with blood group AB belongs to Mr. and Mrs. Wilson.

Blood group or blood type is the classification of the blood cells into different classes on the basis of presence or absence of antibodies and antigens on the membrane of the blood cells.

The alleles which can be formed in case of Mr. and Mrs. Jones are AA or Ai type. These alleles can only result into formation of an offspring with blood group O or A. Similarly, the possible combination of alleles in case of Mr. and Mrs. Williams is AB and ii, these combinations will result into development of offspring with blood group A or B. In case of Mr. and Mrs. Wilson, the possible combinations of alleles are Ai or AA and Bi or BB, which results into formation of offspring with blood group AB.

This can also be represented through punnett square.

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Answer:

2

Explanation:

I can't really understand what it is but my best guess would be too

Oil spills, polluting factories and power plants, raw sewage, toxic dumps, pesticides, freeways, the loss of wilderness and the extinction of wildlife

Answer:

2nd 1 is because the letters are caps

1st 1 is more common

Explanation:

Answer:

Vague, but I think you are talking about duplication or mitosis

Explanation:

Mitosis is duplicating DNA to make two geneticly identical daugher cells

Duplications is just unwinding the DNA to make a second copy

Answer:

No present empirical evidence supports the idea of that natural causes can result in an increase of complexity. The idea that descent with modification has happened in the past is supported by the fossil record. This makes the fossil record the strongest evidence for Darwin's theory of evolution

Explanation:

Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.

A fossil is defined as the preserved remains, impression, or trace of a once-living thing from a past geological age, including bones, shells, exoskeletons, fossilized traces of animals or microbes, amber, hair, petrified wood, and DNA.

The totality of fossils is known as the fossil record. These are the preserved remains of plants and animals whose bodies were buried in sediments such as sand and mud at the bottom of ancient seas, lakes and rivers, including any preserved traces of life which are usually over 10 000 years old.

The different types of fossils include:

1. Petrified fossils

2. Mold and cast fossils

3. Carbon film fossils

4. Trace fossils

5. Reserved remains, etc.

Thus, Fossils are defined as the preserved remains or traces of animals, plants, and other organisms from the past that are important evidence for evolution because they show that life on Earth was different from what was once found on Earth.

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