Why do animals not have photosynthesis?

A: animals have cell walls


B: animals have vacuoles


C: animals have chloroplasts


D: animals do not have chloroplasts

Answer:

RR is hom0zygous dominant and will Red

Rr is heterosygous and will also be red

rr is hom0zygous recessive and will be white

Explanation:

The filling of the chart with respect to the genotype given is as follows:

Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific study in order to deliver some sort of genetic information.

As it is an organism is its complete set of genetic material. These can also be utilized in order to refer to the alleles or variants an individual carries in a particular gene or genetic location.

In fruit flies, red eye color is dominant over white eye color. So, when red eyed-colored (RR) flies are crossed with white-eyed colored flies (rr), they produce offspring with the genotype Rr and phenotype of red-eye color. This all deals with the law of dominance.

Therefore, the filling of the chart with respect to the genotype given is well described above.

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Answer:

Blue eyes is a recessive trait

Explanation:

Recessive traits show in 25% of the offspring, but they skip the first generation. This means that the 25% only shows up in the second generation unless two recessive traits are put together. A likely combination is that both of the parents had Bb, which you can put into a punnet square to visualize.

      B       b

B    BB     Bb

b    Bb     bb90

Answer:

Explanation:

the population is stationary

Answer:

The population is declining.

Explanation:

I just took the test its not staionary

D

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Answer:

The definition of a pure line is a result of inbreeding where animals or plants have certain characteristics that are the same through generations. An example of a pure line is the result of inbreeding of a certain flower to help it fight off diseases.

Answer:

it would help them thrive

Explanation:

because it anables them to catch more with there stronger faster necks

The shift in the traits of tortoises in the population states how natural selection drove the evolution of the tortoises.

During the evolution, with an extended period of time, the shorter vegetation became less available and tortoises with short necks had the disadvantage to survive in that area.

Tortoise develops genes for a long neck and having stronger, faster muscles, which gives tortoises with this trait an advantage in catching insects.

This natural selection helps the tortoises, to survive by catching more food in a particular area, it states tortoises with long necks are the only tortoises living during evolution.

Therefore, this advantage increases the survival rate of the tortoise population.

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Answer: D. Sedimentary

Explanation:

Sedimentary rocks are formed overtime are different particles of sand, shells, pebbles and other fragments of materials form layers and harden into rock.

The particles are compressed and form sedimentary rocks in the ocean floor. Ocean floor is the bottom of the waterbody. Thus, the correct option is D.

The seabed or ocean floor is the bottom of the ocean. All the floors of the ocean are known as 'seabed'. The structure of the ocean floor of the global ocean is governed by the plate tectonics.

Most of the parts of the ocean are deep, whereas the ocean floor is known as the abyssal plain. The seabed also known as the seafloor, ocean floor, and ocean bottom is the bottom of the ocean.

The ocean floor can be divided into three distinct regions which are the continental margins, abyssal plains, and the mid-ocean ridges. The ocean floor has rocks which are called basalt. Here, the basalt particles are compressed which forms the sedimentary rocks. Sedimentary rocks are formed by accumulation of minerals.

Therefore, the correct option is D.

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Answer:

Extremophiles includes those microbes that thrive in very high-salt, high-temperatures, low-temperature, high-pressure, low-pH, or high-pH harsh conditions.

Explanation:

Extremophilic organisms are life forms that can grow in extreme environmental conditions, such as the above mentioned. In general, extremophiles are prokaryotic organisms (i.e., archaea and bacteria), although there are some eukaryotic species that are considered extremophilic organisms. Extremophiles are classified into two main types: 1-microorganisms that live in extreme conditions and 2-microorganisms that have the ability to tolerate extreme environmental conditions. Extremophiles are extremely important both in basic and applied research. An example of this is the thermostable Taq DNA polymerase obtained from the bacterium Thermus aquaticus (an extremophile that lives in areas of high temperature and pressure), which is essential to carry out the Polymerase Chain Reaction (PCR).

Answer:

Explanation:

Answer:

A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"

Explanation:

Answer:

This would be a parasitism.

Explanation:

This is where one side benefits and the other is hurt.

Answer:

The answer is C, genetic diversity.

Explanation:

The three varieties of feather color is an example of genetic diversity.

Genetic diversity is the variation that occurs within the genetic material of organisms.

The genes are responsible for the phenotypic expression of traits.

Three varieties of feather color in a poultry animal is an example of diversity in the genetic content.

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Answer:

index fossils

Explanation:

Answer: An ideal index fossil

Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.

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Answer:

Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. It has originated from the agricultural era. Poultry – mostly chickens – are farmed in great numbers.

Answer:

Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. It has originated from the agricultural era. Poultry – mostly chickens – are farmed in great numbers.

Answer:

50-85%

Explanation:

Answer:

Explanation:

An adaptation is a trait an organism has to make it better suited for the enviorment

Fitness, however is the measure of how many offspring an organism can produce and this depends on these individuals having these sucessful adaptations.

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Differences: Celestial navigation is completely based on the position of sun in the sky. Here, the use of angular measurements can exist among the celestial objects. It is less accurate than the GPS.

The ways that celestial navigation/astronavigation and navigation by GPS differ include:

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Answer:

The new CCC codon codes for proline, while the original CCA codon also encodes for proline  

Explanation:

A synonymous substitution is a mutation produced by the substitution of one nucleotide for another in an exonic gene segment which doesn't modify the original amino acid in the protein sequence. Moreover, a silent mutation is any alteration in the nucleotide sequence that does not produce an observable effect on the organism's phenotype. The example above describes a synonymous substitution because the new codon (CCC) also codes for the same proline amino acid as the original non-mutated codon, thereby the resulting protein sequence remains unchanged. Consequently, in this case, mutations associated with diabetes are located at other gene regions. The genetic code is degenerate because different codons can code for the same amino acid.

Answer:

Lactase

Explanation:

My eyes feel blessed, I want to pet him. He seem pretty chill

Answer:

The Central Nervous system is made out of spinal cords that connect to the brain.

Explanation:

Brain and spinal cord

Answer:

General defenses are the first line of defense and are collectively called: the Innate Immune System. This system is called "innate" because it is genetically encoded, the traits that protect us from infections can efficiently be transmitted to our offspring.The innate immune system recognizes molecular structures that are produced by pathogenic microorganisms. Microbial substances that stimulate innate immunity are often shared by different classes of microbes and are called molecular patterns associated with pathogenic microorganisms

Explanation:

The first defenses that external agents face when trying to penetrate the body are totally nonspecific and are made up of the anatomical, physical, chemical or biological barriers characteristic of each location, while some, such as temperature, are systemic. Between all they make up innate immunity. The importance of these barriers is reflected in the ease with which infections are acquired when one of them fails. Innate cell recognition systems are based on surface or intracellular proteins of epithelial cells, neutrophils, macrophages, and dendritic cells and on soluble cytoplasmic receptors. All these receptors are generally called PRRs (Pattern Recognition Receptors) and bind to PAMPs (Pathogen-associated Molecular Patterns) molecules expressed only by the pathogen (bacterial lipopolysaccharides, carbohydrates and lipoproteins, peptidoglycans, RNA, DNA, etc.). Innate immunity constitutes a less evolved and specific defense than the adaptive one, since the same mechanism (cells, soluble factors, etc.) acts against different agents. Furthermore, repeated exposures to a foreign molecule or agent elicit a similar response and with the same intensity in all of them; that is, it lacks immune memory. The fact that it is a less evolved and specific response is compensated by its speed, since it occurs in hours, and because its intensity is not linked to a previous contact with the foreign agent. Furthermore, its action is essential for the subsequent development of the adaptive immune defense, to which the agent must be exposed once these barriers have been overcome.

Answer:

Ductility is usually defined as the extent to which a material can be deformed plastically and measured in uniaxial tension.

Explanation:

Answer:

The stages of cellular respiration are: Glycolysis, pyruvate oxidation, Krebs cycle and phosphorylative oxidation.

The fermentation stages are: glycolysis and pyruvate regeneration.

Explanation:

Cellular respiration is a biochemical process that occurs in all aerobic organisms and aims to promote the obtaining of the necessary energy so that the cells can perform the activities they need to perform. Cellular respiration occurs in mitochondria and oxygen must be present in the process.

Fermentation is the biochemical process that replaces cellular respiration in organisms that do not survive in the presence of oxygen, the anaerobic organisms that are some fungi and bacteria. Fermentation also aims to produce cellular energy.

Answer:

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DNA can be used to tell people apart  - their DNA sequences or the lengths of repeated regions of DNA

Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique.

Thus, DNA can be used to tell people apart  - their DNA sequences or the lengths of repeated regions of DNA

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Answer:

Dodo.

Great Auk.  

Stellers Sea Cow.

Tasmanian Tiger.

Passenger Pigeon.  

Pyrenean Ibex.  

Baiji White Dolphin.  

West African Black Rhinoceros.

Woolly Mammoth

Sabre-toothed Cat

Desert rat-kangaroo

Tasmanian tiger, or Tasmanian wolf

Toolache wallaby

Desert bandicoot

White-footed rabbit-rat

Bulldog rat

Aurochs

Red gazelle

Schomburgk's deer

Falkland Islands wolf,

Sea mink

Japanese sea lion

Caribbean monk seal

Giant fossa

Madagascan dwarf hippopotamus,

Bluebuck

Jamaican monkey

Will it be enough????

Answer:

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