Answer:
The Correct answer is B, Staphylococcus.
Explanation:
The Catalase test is used to differentiate Staphylococci (Catalase positive) from Streptococci (Catalyst negative). The enzyme catalase is produced by bacteria that respire using oxygen and protects them from the toxic by-products of oxygen metabolism.
Catalase positive bacteria includes strict aerobes as well as facultative anaerobes. Catalase negative bacteria maybe anarobes or facultative anarobes that only ferment and don't respire using oxygen as terminal electron acceptor.
Catalase converts hydrogen peroxide to water and oxygen gas. Though both Staphylococcus and Streptococcus are gram positive bacteria, only Staphylococcus produces catalase enzymes.
sugarcane
B.
sunlight
C.
corn
D.
oil or petroleum
all living cells have enzymes.
B)
life would not be possible without enzymes.
C)
enzymes can speed chemical reactions by 100s to millions of times.
D)
there are a few types of enzymes, but they each perform many types of reactions.
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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b. blastocyst
c. embryo
d. fetus
Answer : The correct answer for the blank is -
a. zygote.
A zygote can be described as a diploid cell that is produced by the fusion of gametes (from each parent such as egg and sperm). The process of fusion is called fertilization and zygote is also called fertilized ovum/egg.
Zygote undergoes multiple rounds of proliferation (cell division through mitosis) and ultimately differentiates to produce the highly advanced stage, fetus (which is fully developed baby).
Thus, a zygote is formed when sperm meets egg and contains all DNA necessary to create a person.
B) consumption
C) commensalism
D) parasitism
E) mutualism
Answer:
C) commensalism
Explanation:
because commensalism is that type of biological interaction in which members of one specie are getting benefit while the other members of other specie are not getting any benefit nor harm.
B. Encouraging a decrease in overconsumption
C. Building a much stronger economy
D. Using technologies that can harvest resources faster
Answer: B. Encouraging a decrease in overconsumption.
Explanation:
Sustainability can be define as the judicious use of the resources. This suggests that the use of the resources should be in a way so that they can meet the needs of the present as well as the future human population.
Among the options given, B. Encouraging a decrease in overconsumption. is the correct option. This is because of the fact that if the resources are overconsumed this will lead to the scarcity of the resources. This will not help in maintaining the sustainability of resources in the population.
It provides RNA polymerase with a place to begin transcription.
It provides DNA polymerase with a place to terminate transcription.
It provides DNA polymerase with a place to begin translation.