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gladu [14]
3 years ago
5

Relatively little is known about many obligate anaerobes. Why might this be so? A. The obligate aerobes are far more numerous, a

nd also far more interesting. B. It's much harder to provide the right atmospheric environment to cultivate obligate anaerobes, so it's been harder to study them. C. Only obligate aerobes cause disease, so we've had little reason to study obligate anaerobes. D. The majority of obligate anaerobes are very nutritionally fastidious, which has slowed their study.
Biology
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

B. It's much harder to provide the right atmospheric environment to cultivate obligate anaerobes, so it's been harder to study them.

Explanation:

Obligate anaerobic bacteria are the ones that can grow only in the absence of oxygen. These bacteria do not derive the energy from aerobic cellular respiration and die when exposed to the presence of oxygen.

Owing to their oxygen sensitivity, the culturing of obligate anaerobic bacteria requires special equipment to ensure the absence of oxygen.

The presence of aerobic conditions in laboratories makes their culture and study harder than that of the aerobic or facultative anaerobic bacteria.

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Q 16.1: The cerebral cortex is required for A : subconscious detection of environmental changes B : conscious interpretation of
dedylja [7]

Answer:

Conscious interpretation of sensations.

Explanation:

Cerebral cortex consists of the outer layer of the cerebrum present in the brain of the humans. Longitudinal fissure divides the cerebral cortex into the right and left cerebral hemisphere.

The cerebral cortex is involved in the senses information. The conscious interpretation of the sensation is required in the cerebral cortex and contains large number of sensory innervation.

Thus, the correct answer is option (B).

6 0
3 years ago
This responds to messages from the communication system and changes its level
alina1380 [7]

Answer:

sensors, control center, communication system, target

Explanation:

4 0
3 years ago
Which of the following statements is the most likely explanation for plant withering due to leaky membranes in cold temperatures
podryga [215]

Answer:

C. H+ ions do not accumulate inside the thylakoid, so ATP synthase makes too little ATP.

Explanation:

Plant withering refers to the virtual death of plant cells due to lack of food. During the light-dependent reactions of photosynthesis, ATP needed for the synthesis of sugar (food) is created in the thylakoid membrane of the CHLOROPLAST of plant cells.

In the light-dependent reaction, hydrogen ions (H+) builds up/accumulate in the thylakoid lumen to create an electrochemical or proton gradient i.e. a difference in the concentration of H+ ions across the membrane. The hydrogen ions passes through a protein complex called ATP synthase, which forms ATP from ADP (by adding phosphate group), from the energy generated by the electrochemical gradient formed as a result of hydrogen in (H+) build up.

Hence, a plant that possess leaky membrane due to the cold temperature will likely wither because H+ ions are not able to accumulate inside the thylakoid causing a proton gradient, so ATP synthase makes too little ATP.

4 0
3 years ago
What charge does the oxygen atom have in a molecule of water
Afina-wow [57]
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.

Thank you for your time on brainly , hope this answer helps. Have a great day!
6 0
3 years ago
Summarize Isaac Newton's law of gravity
tankabanditka [31]
Newton's law of gravity defines the attractive force between all objects that possess mass. Understanding the law of gravity offers profound insights into the way our universe functions. Newton, upon observing an apple fall from a tree, began to think along the following lines: The apple is accelerated, since its velocity changes from zero as it is hanging on the tree and moves toward the ground. Thus, by Newton's 2nd Law there must be a force that acts on the apple to cause this acceleration. Let's call this force "gravity", and the associated acceleration the "acceleration due to gravity". Then imagine the apple tree is twice as high. Again, we expect the apple to be accelerated toward the ground, so this suggests that this force that we call gravity reaches to the top of the tallest apple tree. <span>Newton knew that the force which caused the apple's acceleration (gravity) must be dependent upon the mass of the apple. And since the force acting to cause the apple's downward acceleration also causes the earth's upward acceleration (Newton's third law), that force must also depend upon the mass of the earth. </span>
5 0
3 years ago
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