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Zigmanuir [339]
2 years ago
9

True or false: evolution, including the theory of common descent, is a very controversial idea among scientists

Biology
1 answer:
salantis [7]2 years ago
3 0
True. Common descent, at least, is a VERY controversial topic. Common Descent states that every species should have evolved from ONE SINGLE SPECIES (crazy, I know.)
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What happens to urchins if the oxygen percent concentration drops too low for an extended period of time?
makkiz [27]

Answer:

Since sea urchins are picky, they are used as indicator organisms in public aquariums to determine if the system is functioning properly. This is because they are very "picky" about water quality. If the water is contaminated, the sea urchins will be the first to show signs of stress, spines laying down or falling off. Do use an aquarium filter and do clean up the day after feeding. Any metal exposed to the seawater will corrode and poison the tank. A dying sea urchin will often spawn out and rot out, causing the others in the tank to spawn and die as welll.

Explanation:

7 0
2 years ago
If a bacteria cannot ferment glucose, why not test its ability to ferment other carbohydrates?
nalin [4]

If a bacteria cannot ferment glucose, then we do not test its ability to ferment other carbohydrates because the glucose is monosaccharides, the bacteria required enzymes that used to ferment glucose.

Bacteria cannot ferment carbohydrates because carbohydrates may include non-reducing sugar like sucrose and lactose, which is disaccharide, that must be cleaved into monosaccharides. Not all, bacteria can do this to may or may not ferment sucrose.

Many microorganism can grow in the base broth without the carbohydrates, but if they can ferment a sugar that is available. It is possible that one bacteria metabolize some sugar but can't work on other.

To learn more about non-reducing sugar here

brainly.com/question/13154500

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6 0
1 year ago
How do the nervous system and endocrine system work together​
viktelen [127]

Answer:

the endocrine system and the nervous system are the two major regulating and communicating systems of the body. During rest and exercise, the nervous system along with endocrine system  regulate the body mechanism to initiate the maintenance of Homeostasis in the body.

both endocrine and nervous system are both together  involved in the transmission of chemicals signals which are important for physiological processes in the body . The difference is that endocrine system uses Hormones while nervous system uses neurotransmitters for chemical signalling.

The main area of the brain where these system work together and perform their function collectively is Hypothalamus where they signal each other when they receive proper stimulus.

6 0
3 years ago
Why can’t certain blood types be combined?
scZoUnD [109]

Answer:

Because it causes complications with the person and the blood

Explanation:

3 0
3 years ago
Read 2 more answers
Which is the priority nursing action when providing care to a trauma client whose primary survey indicates a glasgow coma scale
Sphinxa [80]

Trauma Glasgow 7 is caused by failure to recognize and control the amount of haemorrhage. Immediate priority which nurse takes is to manage large volume of blood loss. Assessment of airway stability and patency should be performed and airway management intuited should be there as needed unless the patient is in cardiac.

Primary survey is the initial management and assessment of trauma patient. The primary purpose of the pivotal study is to treat actual and detect life threats and prevent complication from the injury. The time the patient arrives at the emergency department, full non-invasive monitoring should be applied to the patient.

The primary survey  which is taken to the trauma patient include ABCDE

Airway. It is to check for any airway obstruction.

Breathing. Check for haemothorax.

Circulation. Check for circulation of blood.

Disability.

<span>Exposure</span>
8 0
2 years ago
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