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NARA [144]
3 years ago
12

If an eclipse were to last for days what effects might have on plants and wildlife

Biology
1 answer:
Crank3 years ago
6 0

There won't be any Photosynthesis occurring and plants and tress will eventually die.. When the plants die the omnivorous animals will die of hunger..... Also we will be suffering from famine

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What is the name of the membrane surrounding the brain? What is the<br> function of this membrane?
wlad13 [49]

Answer and explanation:

The meninges

There are actually 3 parts—dura mater, arachnoid, and pia mater.

The brain is soft and mushy, and without structural support it would not be able to maintain its normal shape. In fact, a brain taken out of the head and not properly suspended (e.g., in saline solution) can tear simply due to the effects of gravity. While the bone of the skull and spine provide most of the safeguarding and structural support for the central nervous system (CNS), alone it isn't quite enough to fully protect the CNS. The meninges help to anchor the CNS in place to keep, for example, the brain from moving around within the skull. They also contain cerebrospinal fluid (CSF), which acts as a cushion for the brain and provides a solution in which the brain is suspended, allowing it to preserve its shape.

The outermost layer of the meninges is the dura mater, which literally means "hard mother." The dura is thick and tough; one side of it attaches to the skull and the other adheres to the next meningeal layer, the arachnoid mater. The dura provides the brain and spinal cord with an extra protective layer, helps to keep the CNS from being jostled around by fastening it to the skull or vertebral column, and supplies a complex system of veinous drainage through which blood can leave the brain.

The arachnoid gets its name because it has the consistency and appearance of a spider web. It is much less substantial than the dura, and stretches like a cobweb between the dura and pia mater. By connecting the pia to the dura, the arachnoid helps to keep the brain in place in the skull. Between the arachnoid and the pia there is also an area known as the subarachnoid space, which is filled with CSF. The arachnoid serves as an additional barrier to isolate the CNS from the rest of the body, acting in a manner similar to the blood-brain barrier by keeping fluids, toxins, etc. out of the brain.

6 0
3 years ago
How long does blood from a transfusion last?
adoni [48]
It can last from 1 to 4 hours
4 0
3 years ago
A. signaling cell B. ligand C. receptor D. responding cell In communication between cells, the _____ produces the signaling mole
Angelina_Jolie [31]

Answer:

Answer      A, B, D, C

Explanation:

This process is known as cell signalling.

The interaction of the cells with their environment and other cells around them is cell signalling.

There are four basic categories in multicellular organisms, these are

* autocrine signalling

* endocrine signalling

* paracrine signalling

*signalling by direct contact.

5 0
3 years ago
What are the indicators of quality of semen and how are they evaluated?
SpyIntel [72]

Answer:

James has 195.84 square yards of land he can use to grow vegetables. He wants to divide this into patches of 16.32 square yards.

Explanation:

4 0
3 years ago
Activities that require anacrobic endurance
Mrac [35]

Answer: A) require maximal contraction of muscles for short periods of time.  

Explanation:

During intense and prolonged physical exercise, fatigue is mainly related to hypoglycemia, since both glucose and carbohydrate oxidation ratio decrease. A widely accepted hypothesis to explain peripheral fatigue involves energy deficiency for muscle work, also known as the "Glycogen Depletion Hypothesis."

The energy from our diet is stored in the ATP (adenosine triphosphate) molecules. This represents the potential energy reservoir that can be used in the body's various biological work requiring energy, such as muscle contraction in mechanical muscle contraction work, breakdown of ATP into ADP (adenosine diphosphate), and its phosphorylation. ATP constitutes the so-called ATP-ADP cycle.

ATP formation occurs mainly through aerobic (oxidative) processes, but also during high intensity (anaerobic) exercises with a consequent lactate formation and phosphocreatine breakdown.

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