Answer: Deforestation is bad for mother nature. The reason for this is because deforestation is cutting down trees and in that way we are destroying mother nature's gifts to us.
B. spleen
C. pancreas
D. stomach
Answer
It is read 3 letters at a time which is 3 bases
Answer:
The age of 35 years was established to offer invasive techniques, because at this age the risk of secondary abortion was balanced by the technique and the risk of chromosomal alteration.
Explanation:
The possibility of early diagnosis of fetal anomalies of various kinds (neural defects, chromosomopathies, etc.) has been one of the top concerns of gynecologists and geneticists, for obvious reasons.
Throughout these years, prenatal diagnostic techniques have been developed that allow therapeutic decisions by doctors or viability of pregnancy by parents. These techniques are initially performed with non-invasive methods (biochemical determinations, ultrasound), and if the suspicion is increasing, it is passed to more invasive techniques such as amniocentesis or chorionic villus biopsy.
Given that in the latter there is a risk of loss of pregnancy, it is previously attempted to ensure that the indication is correct, and for this, new biochemical tests and risk calculation systems have been added.
Until recently the criterion for establishing the risk of fetal chromosomal abnormality was the mother's age, since there was a clear relationship between maternal age and chromosomal abnormalities, especially Down. The age of 35 years was established to offer invasive techniques, because at this age the risk of secondary abortion was balanced by the technique and the risk of chromosomal alteration. The problem was that a small number of cases were detected. Therefore, other parameters have been sought that estimate more precisely those subsidiary chaos of early detection.
The estimation of the risk in a given pregnant woman is done by multiplying the risk associated with her age for the specific gestational age.
Currently, most prenatal tests consist of AFP, estriol and human chorionic gonadotropin (hCG), which is the triple test, which is a blood test that assesses the risk in a pregnancy of having a Down syndrome or spina bifida It is not a test that tells us whether or not the fetus has any of these defects. It is a test that tells us the probability of risk of having them. Studies have shown that about 70% of fetuses with Down syndrome can be identified early combining the analysis of the mother's age and the results of the triple test.
Correct answer: Act as a catalysts in a chemical reactions of cells, interact with specific substrates like a lock and key, can lower the required activation energy for reaction in living organisms
Enzymes are the protein molecules that act as biological catalyst, which speed up the rate of chemical reaction by lowering the activation energy of the chemical reaction which are required to carry out the chemical reactions.
Enzymes are specific in nature, which means they have a specific shape and only a specific substrate will fit into its active site and carry out the reactions.
All the biochemical reactions which are occurring inside the body require enzyme, without enzyme the rate of biochemical reaction would be much slower as compared to the reactions taking place in presence of enzyme.
Example: Lipase:- An enzyme which found in living organism which help in the digestion and processing of lipid, fats and oils.
Enzymes act as a catalyst in a chemical reaction of cells, interact with specific substrates like a lock and key, and lower the required activation energy for reaction in living organisms, hence options 2, 3, and 4 are correct.
Proteins called enzymes serve as biological catalysts by quickening chemical processes. Substrates are the molecules that enzymes may interact with, and the enzyme changes the substrates into other molecules known as products.
In human bodies, enzymes assist metabolic processes. From breathing to digestion, they support.
Learn more about enzymes, here:
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Wind in the atmosphere and currents in the ocean are caused by uneven heating that produces convection .