The incorrect statement about enzymes is that there are only a few types, each capable of performing many types of reactions. In reality, there are thousands of enzyme types each specifically designed for a particular type of reaction.
The subject of this question is about enzymes, which are proteins functioning as biological catalysts. They speed up chemical reactions and are vital to life. The options A), B), and C) state that all living cells have enzymes, life would not be possible without enzymes, and enzymes can speed up chemical reactions by hundreds to millions of times. These options are all true. But the statement D) that there are a few types of enzymes, each performing many types of reactions, is incorrect. In fact, there are thousands of different types of enzymes and each enzyme usually only catalyzes one type of chemical reaction.
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Answer:
-Prophase.
Explanation:
Cell cycle involves a series of events that leads to formation of two daughter cells by division of a parent cell. It can be divided into two phases, interphase and mitotic phase (M phase)
The M phase involves division of nucleus and cytoplasm to produce two daughter cells. It is divided into prophase, metaphase, anaphase, telophase and cytokinesis.
Hence, the first stage of M phase is prophase, in which condensation of chromosomes begins, nuclear membrane disintegrates, and nucleolus starts to disappear.
Thus, the correct word to be fill in the blank is 'prophase
Answer:
The variable is defined as the trait, factor, or condition that exist in different types or amounts.
In an experiment, there exist three types of variables:
Independent variable: It is the variable which is changed by the scientist. It includes the things or factors whose effects are being studied. For example, level of sugar in the diet is an independent variable.
Dependent variable: It is the variable value of which depends on the value of the independent variable. For example, the weight of the mice will be a dependent variable in this hypothesis.
Controlled variables: These are the variables whose values are kept constant during an experiment. For example, temperature or other living conditions of all the mice used in the experiment.
the answer is 'Amount of Sugar'.
Thank you!!
Answer:
Leukemia is cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system. Many types of leukemia exist. Some forms of leukemia are more common in children. Other forms of leukemia occur mostly in adults. Leukemia usually involves the white blood cells.