ASAP
This organelle has a green pigment that absorbs sunlight.
A. Mitochondrion
B. Chloroplast
C. Vacuole
D. Ribosome

Answer:

C

Explanation:

Answer:

by eating organic matter in the soil and excreting castings that are rich in nitrogen, phosphorus, and potassium which make the soil nourishing.

Answer:

a family of primates that include humans

Explanation:

Explanation:

DNA can be extracted by grinding the tissue in dry ice or liquid nitrogen with the mortar and pestel or a food grinder. the cell membrane must be disrupted,so that the DNA is released into extraction buffer.

Plant cells are eukaryotic cells that make up plant tissues and have three types of DNA: nuclear, mitochondrial and chloroplastic, for their study, nucleic acids must be isolated by physical or chemical methods.

They are eukaryotic cells that make up many of the tissues of organisms belonging to the Plantae kingdom, have a differentiated nucleus, contain hereditary genetic information (DNA) and can be nuclear, mitochondrial and chloroplastic.

The extraction and purification of nucleic acids constitutes the first stage of plant cells studies, the DNA precipitates in alcohol out of solution, where it can be seen and separates it from other cellular components, which are left in the aqueous solution.

Therefore, we can conclude that plant cells are eukaryotic cells that make up plant tissues and have three types of DNA: nuclear, mitochondrial and chloroplastic, for their study, nucleic acids must be isolated by physical or chemical methods.

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Answer:

Explanation:

2. Son zonas delimitadas por criterios de Geografía Física: como relieve, clima, hidrografía, vegetación y suelos.

Answer:

Natural selection.

Explanation:

Natural selection can be defined as a biological process in which species of living organisms having certain traits that enable them to adapt to environmental factors such as predators, competition for food, climate change, sex mates, etc., tend to survive and reproduce, as well as passing on their genes to subsequent generations.

Simply stated, natural selection entails the survival of the fittest. Therefore, the species that are able to adapt to the environment will increase in number while the ones who can't adapt will die and go into extinction.

In this scenario, the mechanism of evolution responsible for this was natural selection because after about 40 generations the evolution of reproductive isolation was under way for the fruit fly. Thus, the more the offsprings that are reproduced by the parent organism, the more likely are they to survive.

Additionally, there is a better chance of having good or beneficial traits being passed from the parent organism to her offsprings.

Explanation:

cells : cells are buliding blocks of life .Every living organism is made up of cells

organs : They are a structure made up different tissues working for a specific function.

organism : Any being that respires grows, excretes , moves , reproduce , adapt , needs nuitrition and is sensitive to changes

multicellular: an organism that is made up of more than one cell

unicellular : an organism that is made uo of only one cell

nueron : a nerve cell

impulse : they are just like electrical impulses

sensory nuerons : also known as receptor nuerons .They transmit impulses to central nervous system.

motor nuerons: also knownas motor nueron. They transmit impulses from nervous system to the effectors

hormones : they are chemical substances produced by endocrine glands transported by blood ,alter the activity of one or more targeted organs in the body .

reflex: it is the immediate response to a specific stimulas without conscious control

Explanation:

the answer is b because the consewuences of global warming had not yet pass

Answer:  D

Explanation: No climate change deniers think that climate change is good for the the planet, they just deny that climate change exists

Explanation:

when trees are cut down, the bare surfaces left behind absorb more heat than the forest they replaced.And that heat helps draw air upward, pulling moist air in from nearby forested land that increases rainfall in the immediate area.

El origen de las especies, cuya primera edición apareció en 1859, es el libro más conocido de El biólogo británico Charles Darwin. En el libro, Darwin expone su teoría de la evolución:

El libro está considerado como una de las obras científicas más importantes de la historia. Causó revuelo en el momento de su publicación porque atribuyó la riqueza de la forma de vida en la Tierra a un proceso mecánico más que a una inteligencia sobrenatural. Es cierto que otros habían sugerido previamente que podría haber cosas como la evolución o la selección natural, pero "El origen de las especies" es el primer trabajo que extrae la mayor consecuencia de estos conceptos.

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Answer:

Four

Explanation:

An enzyme is used in each stage;

From A to B

B to C

C to D and finally D to E

Answer:

Priorities will guide you in life's decisions and keep you on track. Most importantly, priorities will give you the confidence to say "no." They help you identify what's truly needed in your life, versus what someone else feels is important.

Answer:

The importance of it are Establishing priorities is necessary in order to complete everything that needs to be done. Prioritization is important because it with allow you to give your attention to tasks that are important and urgent so that you can later focus on lower priority tasks.

Answer: 3 2Li (s) + 2H20 (1) ► 2LiOH (aq) + H2 (g)

Explanation: i think thats the answer :/

Answer:

airlines - nontestable

pollutants- Testable

chocolate- Testable

meat- Nontestable

Explanation:

i just took the test nd got it right

Answer:

The purpose of the crest was to provide a surface for masticatory muscle attachment or insertion.

Explanation:

This crest is called the sagittal crest. It is present in extinct hominids, such as Australopithecus and Paranthropus, and can also be found in living animals such as gorillas or lions and some reptiles.

The sagittal crest is a bony structure that crosses the hominids´ skull longitudinally, and it is so well-developed that it stands out notoriously.

This crest, like others in the skulls, provides an attachment surface for many muscles. In the particular case of the sagittal crest, it is believed to provide an insertion area to mastication muscles.

It seems that Australopithecus had a special diet composed of tough items. The hominid probably needed to strong bite while eating. The strong jow muscles gave them the possibility to bite but needed a wide area for insertion. The sagittal crest provided that wide surface. There was a direct relationship between the size of the crest and the muscle mass. The bigger the crest was, the more developed the muscle was.

It is believed that in living animals, such as gorillas, the development of the crest in males is for sexual selection and reproductive success. The bigger the crest is, the more attractive the male is, and the more chances to be selected by the female to mate it will have. Some hypothesize that the development of the crest in Australopithecus could also be related to sexual selection.

Answer:

Passive transport requires protein channels

Explanation:

Answer:

The chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms and molecules.

Explanation:

This is the correct answer I hope this helps you out!

Answer:

The purpose of ethical guidelines for handling of experimental subjects is to ensure the safety and well-being of all living creatures in an experiment. Ethical guidelines include issues such as human rights, animal welfare, safety compliance with the law, conflicts of interest, health standards.

Answer:

This change would be predicted to have less effect compared to the change of the amino acid from glutamic acid to valine.

Explanation:

A conservative mutation is a type of mutation that leads to the replacement of one amino acid by another with similar properties. Both glutamic acid and aspartic acid are similar in size and biochemical properties. These amino acids are acidic dicarboxylic acids (i.e., they contain two carboxyl groups or ―COOH). The side chains of both glutamic acid and aspartic acid are similar, with the exception that glutamic acid contains one additional methylene group in its side chain.

Answer:

Due to distance from the equator.

Explanation:

There is a variation of weather in two different parts of India, though climate  was summer because both parts experience different amount of sunlight. There are some regions in India which is located on the equator so they experience very hot weather while on the other hand, some regions are present at a large distance from the equator so direct sunlight does not occur and the temperature is moderately warm.

Answer:

1=65

2=50

3=true

Explanation:

Answer:

A. strands I'd DNA wrapped around proteins.

Explanation:

DNA is securely packed within the nucleus by chromosomes, which are thread-like structures. Histone proteins offer structural support for DNA by coiling it around them. During cell division, chromosomes assist in the replication and distribution of DNA. Each chromosome has a centromere, which separates the p (short) and q (long) arms. The centromere is found at the constriction point of the chromosome, which may or may not be the center.

OAmalOHopeO

Answer:

osteoporosis is most likely to be affected by phosphorus.

I hope this helps

Answer:

Ethnobiology is the scientific study of dynamic relationships among peoples, biota, and environments. ... The diversity of perspectives in ethnobiology is our greatest strength.

it is the scientific study if dynamic relationship between people,biota and environment

Answer:

A small GTP-binding protein called dynamin assembles as a ring around the neck of each deeply invaginated coated pit, pinch off the vesicle. After the budding is complete, the coat proteins are removed, and the naked vesicle can fuse with its target membrane.

Explanation:

Dynamin - may be a GTPase that takes part in an important role in clathrin-dependent endocytosis and other vesicular trafficking processes by acting like a couple of molecular scissors for newly setup vesicles originating from the cell wall.

ANSWER: B

explanation: from what I learned in culinary arts, this is kind of a trick question. Its not asking how foods can get contaminated, its asking how CROSS CONTAMINATION can occur. Cross contamination occurs in three ways think of it like this: food-to-food, equipment-to-food, and people-to-food. The answer has to be between B and C. But the answer is B, because the utensil is already contaminated and it is coming in contact with another food. The two or more food handlers working on the same food are not bringing anything contaminated into the situation. Unless they are contaminated (by they I mean their hands lol) then it cross contaminates but that's not it lol im 99% sure the answer Is B.

Cross-contamination of food occurs when two or more foods come into contact with each other, transferring microorganisms from one food to another. This can happen in a number of ways, including direct contact, contact with a contaminated surface or utensil, contact with a contaminated food handler, or contact with airborne microorganisms.

The most common type of cross-contamination is direct contact, which can occur when one food touches another. This is especially true of perishable foods, which should not be kept at room temperature for more than two hours.

If they are kept at room temperature longer than this, bacteria and other microorganisms can quickly multiply, potentially leading to cross-contamination.

Another common way for cross-contamination to occur is through contact with a contaminated surface or utensil. If a utensil that has been used to handle a food contaminated with microorganisms comes into contact with a second food, the microorganisms can transfer to the second food and cause cross-contamination.

Similarly, if two or more food handlers work on the same food, their hands can transfer microorganisms from one food to another, leading to cross-contamination. Finally, if two or more microorganisms grow in the same food, they can interact with each other and potentially cause cross-contamination.

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Answer:

Bacteria

Explanation:

Several microorganisms, including fungi, bacteria and yeasts are involved in biodegradation process.

Answer:

neurons

Explanation:

I was reading an article and that was the only thing that really stood out...