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vichka [17]
2 years ago
11

What do scientists have yet to solve

Biology
2 answers:
Brilliant_brown [7]2 years ago
8 0
Global warming. Not reversing it, because that would most likely cause an ice age, but keeping it under control.
patriot [66]2 years ago
5 0
The Voynich Mancript
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In an experiment, you create two groups of liposomes in a solution containing 0.1 M NaCl—one made from red blood cell membranes
mars1129 [50]

Answer:

As liposomes with red blood cell membranes burst more rapidly than those made from egg membranes, we consider these liposomes as more hypertonic respect to water, than those derived from frog egg cells.

Explanation:

Osmosis is a process where water can cross a semipermeable membrane in a gradient way.  Water tends to move from a high concentration of solvent to a low concentration.  Then, water goes in through the liposome to dilute its solute content, as it's not easy for molecules inside to go out of the usually impermeable membrane bilayers.   

8 0
3 years ago
I need help with this question
Lostsunrise [7]
The correct answer would be D
8 0
3 years ago
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A variable-ratio schedule reinforces behavior after a:
zmey [24]
A reinforcement schedule is a pattern that defines how often a desired response will be reinforced.<span> 
</span>A variable-ratio schedule <span>is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses.</span>
<span>Fixed-interval schedules on the other hand  reinforce behaviors after set time periods.</span>

8 0
3 years ago
Once blood delivers oxygen, what does it pick up from cells on its way back to the heart?
Anarel [89]

Answer:

Your answer is C) Carbon Dioxide.

5 0
2 years ago
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Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
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