A phosphate group has the following chemical composition:
a. -OH
b. -COOH
c. -PS2
d. -CH3
e. -PO4

Answer:

to be considered a species, a population must be reproductively isolated from other species

Answer:

atom - molecule- Cell -tissue - organism- population- ecosystem-biosphere

Answer:

carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood.

Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.

The majority of carbon dioxide is transported as part of the bicarbonate system.

Goodluck

Answer:

Explanation:

Gandhi who was assassinated about 20 years before King, is telling King all that happens when they kill your body is that what you have stood for and what you have left behind for your followers lives long after your death. Not to worry is the message: all will come out well when the methods you have used sink in to the leaders and followers you have left behind.

All that happens is that those who oppose you enough to kill you will think you are dead: you are not. Your legacy becomes stronger and stronger.

Answer:

The contents of a cell if has the solute concentration as 0.04 percent then it should have much lesser concentration that the cell, then only it will allow the cell to swell. Because of the solutions with a lower osmotic pressure than a cell fluid solution concentration, can make it swell.

Explanation:

Answer:

Trees and other plants

Explanation:

Trees and plants prevent erosion by holding the soil together with their roots.

Answer:

your pic is too blurry i cant see

Explanation:

nsjddjdjdhdheuruurueururhnrndjdidpppppppppppppppppppppppppppppppp]]]kkkkkkkkkkksbdhdhdjdjcifjdhehehebebrbdhdhdurudu

Answer:

B) Radius

Explanation:

By the way for some people this question will have different answers so.. yeah

Answer:

- These morphological features belong to Down syndrome.

- Diagnosis: Down syndrome (Trisomy Extra chromosome 21).

- Etiology: the presence of three copies of the autosomal chromosome 21 instead of two copies in body (somatic) cells.

- Most important health problem: Down syndrome increases the risk of developing Alzheimer's disease (other health problems include heart congenital defects, vision problems, hearing loss, hypothyroidism)

- Diagnostic test: Amniocentesis

Explanation:

Down syndrome (DS) is the most frequent chromosomal abnormality which is generally caused by the presence of an extra copy of autosomal chromosome 21, thereby it is an autosomal trisomy (trisomy 21). DS is often associated with intellectual disability and increased risk of developing Alzheimer's, as well as health problems including, among others, heart congenital defects, vision problems, hypothyroidism, blood disorders, hypotonia, endocrine problems, dental problems, seizures, etc. Amniocentesis is the most common invasive prenatal diagnostic procedure which is used to identify chromosomal abnormalities such as trisomy 21 (Down syndrome). Amniocentesis is done between 15 weeks and 20 weeks of pregnancy.

Explanation:

economic importance of mosquito larva are

Mosquito larvae grow by consuming microorganisms such as algae and microbes that decompose decaying plant material. Larval mosquitoes contribute to aquatic food chains by serving as food sources for many predators, including fish and birds.i hope it will help you

Answer:

B. Forming a hypothesis

Explanation:

Once you have a question in mind, you form a hypothesis (which is sort of an educated guess of what you expect or do not expect to happen) and then finally you can start on scientific investigations of collecting data and end with analyzing data and showing conclusion.

Answer:

the correct answer is B

Explanation:

because you always try to understand your question after you state it

Answer:

catarhini. hope helpful answer

Answer:

The answer for this question is that they  belong to Platyrrhini

Explanation:

Explanation:

Dehydration synthesis leads to the formation of water..

Answer:

Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. During a condensation reaction, two molecules are condensed and water is lost to form a large molecule.

Explanation:

Hope this helps.

Answer: They close to prevent blood from flowing back into the ventricles.

Explanation: To find the semilunar valve is the valve between the left ventricle and the aorta is the aortic semilunar valve.

The question is incomplete, the complete question is shown in the image attached

Answer:

D

Explanation:

Pollutants tend to an increase in concentration in the fatty tissues of animals compared to the concentration of the same pollutant in the environment.

Also, tend to increase in the fatty tissues of organisms at each trophic level.

Hence, as a result of this, the highest concentration of the insecticide is accumulated by the organisms at the highest level of the food chain. So, the tertiary consumers accumulate the highest concentration of the insecticide.

Answer:

photosynthesis requires the absorption of sunlight

Answer:

The correct answer is - C. oxidation of substances organic.

Explanation:

The major function of the mitochondria is to perform cellular respiration and produce energy in the form of ATP by oxidating organic molecules. All the process requires energy to be processed, however, the main and primary process that would disturb if by the destruction of the mitochondria occur which is the oxidation of glucose to convert it to pyruvic acid to generate energy.

The Krebs cycle that takes place in mitochondria and performs oxidation of organic molecules will also be disturbed and there will be no energy for any process.

Answer:

yes we can add nutrition from healthy and nutritious foods .

hope it is helpful to you

Answer:

red

Explanation:

Visible light may be a tiny part of the electromagnetic spectrum, but there are still many variations of wavelengths. We see these variations as colors. On one end of the spectrum is red light, with the longest wavelength. Blue or violet light has the shortest wavelength.

Answer:

red has the longest wavelength.

Explanation:

blue and violet are the shortest

Answer:

The correct answer is - a) biochemical separation, identification, and quantification of mixture components.

Explanation:

Most hemoglobin disorders can be diagnosed by molecular diagnostic techniques such as protein-based techniques like electrophoresis and chromatography. Protein-based methods can diagnose early thalassemia disorders and hemoglobinopathies but in the case of α-thalassemia may be masked in the presence of β-thalassemia.

Molecular genetic testing plays a very important role in the biochemical separation of molecules or components, identification, and quantification of individuals carrying thalassemia and hemoglobinopathies traits and other hemoglobin disorders.

Answer:

hlw its jess bragoli

your answer is here

• false

Explanation:

The dinosaurs died out 65 million ago

and 65 million is a lot. Not a few

so your ans will be

false

Answer:

a

Explanation:

Answer:

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs. Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria.

Answer:

option 3

Explanation:

Answer:

50 visible chromosomes and replicated.

Explanation:

When we talk about the cell cycle, we refer to the interphase and the cell division (mitosis or meiosis).

Interphase is composed of stages G1, S, and G2. During the S stage, the DNI replication process occurs. This is the only stage in which the DNI molecule replicates. The synthesis of histones and other associated proteins also occurs.

Meiosis occurs after the interphase is over.

Meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.

At the beginning of prophase 1, DNI is condensed in a well-defined chromosome formed by two sister chromatids joined by a centromere. Each chromosome carefully pairs with its homologous chromosome. Homologous chromosomes aline together to make the crossing-over possible, the stage where they interchange their parts.

The whole set of chromosomes is present in prophase 1. The reduction occurs later.

So if the germ cell has 50 chromosomes, the same 50 will be visible during prophase 1. DNA has already been replicated during the S stage of interphase.

Answer:

<1=105 <2=75

Explanation:

So 2 is 75 degrees because it's corrosponding with <6.

75+<1=180

-75       -75

<1=105

Answer:

Because melting can be reversed ( freezing )

Explanation:

Physical change is a change that can be reversed

Answer:d

Explanation:

it’s right