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lions [1.4K]
3 years ago
8

The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely

to be the most active in the acidic environment of the stomach?
A) pepsin
B) trypsin
C) amylase
D) pepsin and trypsin

Biology
2 answers:
Romashka-Z-Leto [24]3 years ago
6 0

The answer is A) Pepsin

bixtya [17]3 years ago
3 0

Pepsinogen, an inactive zymogen, is secreted into gastric juice from both mucous cells and chief cells. Once secreted, pepsinogen is activated by stomach acid into the active protease pepsin, which is largely responsible for the stomach's ability to initiate digestion of proteins.

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The consistent reduction in fitness (survival, reproduction, etc) in a population due to widespread non-random mating is called
igomit [66]

Answer:

Natural selection

Explanation:

Natural selection occurs when one allele (or combination of alleles of different genes) makes an organism more or less fit, that it is able to survive and reproduce in a given environment. If an allele reduces fitness, its frequency will tend to drop from one generation to the next.

4 0
3 years ago
Directions: Respond to the prompts below to demonstrate your understanding of the reading.
skelet666 [1.2K]

Answer: Cellular respiration is the process by which microorganisms obtain the energy available in carbohydrates. They take the carbohydrates into their cytoplasm, and through a complex series of metabolic processes, they break down the carbohydrate and release the energy. The energy is generally not needed immediately, so it is used to combine ADP with phosphate ions to form ATP molecules. During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons. This oxygen gas is identical to the oxygen gas given off in photosynthesis.

Explanation:

7 0
3 years ago
Which statement about asexual reproduction is true?
scZoUnD [109]
The correct answer is B since the organism is just copying itself.
4 0
3 years ago
Read 2 more answers
Match the brain function to the correct corresponding brain structure.
Vlad1618 [11]

Answer:

Memory and learning - Cerebrum

General bodily arousal - Cerebellum

Complex mental processes - Cerebral cortex

Connects two halves of brain - Cerebrum

Relax, dream, sleep - Hypothalamus

maintain homeostasis - pons

Regulates body circulation - Medulla

Emotions - Cerebrum

Tells senses - Cerebrum

tells nervous system - Cerebellum

Explanation:

Cerebrum is the largest part of the brain which controls emotion and senses of the body. It controls information of the body. Medulla Oblongata is the part of the brain which is just near the spinal cord. It regulates blood circulation. Hypothalamus is the part of brain which regulates sleep wake cycle of a person.

8 0
3 years ago
What is waste water treatment ?
Scilla [17]
What is waste water treatment ?

“The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment.”

My source is from www.usgs.gov
8 0
4 years ago
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