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oee [108]
3 years ago
12

Which of the following is the best statement of the use of the addition rule of probability?

Biology
1 answer:
inna [77]3 years ago
4 0

Answer:

C

Explanation:

To get  the probability that either one of two independent events will occur, one adds the individual probabilities of the individual events. To get the probability that one event will be followed by the other in consecutive order, one multiplies the probabilities of the individual events.

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Human digestion of food begins in the _______, where the enzyme _____ breaks down a small amount of starch. Mouth; amylase stoma
Alexandra [31]

The digestion of the food in humans begins in the mouth. In the mouth, the salivary amylase enzyme digests and breaks down a small amount of the starch present in the food. The digestion process begins right in the mouth. and continues till the intestine. The carbohydrates (starch) are the ones whose digestion starts in the mouth.

Hence, the blanks can be filled with 'mouth and amylase' respectively.

7 0
3 years ago
Humans can take up available space, disrupt systems, or change water supplies in an ecosystem. What conclusion can you make abou
alexandr402 [8]

Answer:

Human activities affect the flow of energy and matter in an ecosystem and alter the energy balance in ecosystems through the unsustainable nature of what they do.  The energy flow is affected in several ways as a result of pollution, overpopulation, deforestation, burning fossil fuels, etc. Such changes have stimulated soil erosion, climate change, causing water unfit to consume, poor quality of air and so on. When humans cause a change in the energy balance, they impact the ability of the ecosystem to respond and adapt to changes in the environment. It is like getting a cut, but it never heals and grows bigger instead.

4 0
2 years ago
True or False: Homologous structures indicate a shared ancestry but<br> vestigial structures do not
Misha Larkins [42]

Answer:

false false false false false false

6 0
3 years ago
Please help with this question ASAP
grigory [225]

Answer:

D

Explanation:

because molecule A is only shown on the outside and is not exposed to the acidity on the inside of the cells

4 0
3 years ago
Refer to the Biochemistry in Focus section of your text for this chapter to answer this question. Sarin inhibits acetylcholinest
DENIUS [597]

Answer:

c. Pyridostigmine binds to the acetylcholinesterase active site and prevents sarin from binding to and modifying the enzyme active site.

Explanation:

Sarin is a toxic compound which inhibits acetylcholinesterase enzyme. This enzyme degrades the neurotransmitter acetylcholine after the required muscle cell stimulation. In absence of its activity, acetylcholine is not degraded and the muscle cells are stimulated uncontrollably. The muscles are not able to relax which ultimately proves fatal for the victim.

Pyridostigmine is also an acetylcholinesterase inhibitor like Sarin. However its period of inhibition is short compared to organophosphorus inhibitors like sarin. It competes with sarin and replaces it in the active site of acetylcholinesterase. The enzyme is still inhibited but for a shorter time as compared to inhibition by Sarin. Hence after sometime, it becomes functional again and resumes its normal activity. Acetycholine starts getting degraded relaxing the muscles.

8 0
2 years ago
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