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IRINA_888 [86]
3 years ago
14

Which of the following is not a part of the cell theory based on the observations and conclusions of Virchow? A) Cells come from

cells. B) Cells contain tiny organelles. C) Cells are the basic units of life. D) Organisms are made of cells.
Biology
1 answer:
lara [203]3 years ago
8 0

Answer:

A) cells come from cells.

<h3> Is not a part of cell theory based on the observations and conclusion of virchow. </h3>
You might be interested in
compare and contrast the different types of heterotrophs Use the terms Carnivore, herbivore, and omnivore in your discussion to
Lunna [17]

Answer:

I'm not sure if your asking about a A, B, C, D question but, as far as I can tell this is what I know

Explanation:

(:Comparing:) Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

(:Contrasting:) Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

Hope this helps.

5 0
3 years ago
Help! Will give brainlist
irinina [24]
Answer: B

Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
6 0
3 years ago
The selective serotonin uptake inhibitors, like the antidepressants Prozac, Zoloft, or Paxil, result in increased levels of sero
never [62]

Answer:

increase anxiety; decreased vulnerability to overreact to stress

Explanation:

Serotonin (5-HT) is a natural neurotransmitter that carries signals between nerve cells (neurons) throughout the body. This neurotransmitter (serotonin) is responsible for regulating many biological functions (e.g., mood, digestion, sleep, etc). Moreover, it has been shown that there is an association between low cerebrospinal fluid 5-hydroxyindole-acetic acid (5-HIAA, the principal serotonin metabolite in the brain) levels and the risk of developing depression or destructive behaviors. In addition, serotonin concentration can also be elevated in situations of anxiety and/or stress. Antidepressants such as Prozac, Zoloft and Paxil act as serotonin uptake inhibitors that increase serotonin concentration at the synaptic site. Like other drugs, these antidepressants may lead to increase anxiety and decrease the vulnerability to react to stress by downregulating sensitivity to serotonin released during natural stress situations.

3 0
2 years ago
In which sections or section of the kidney is the urine formed? what section of the kidney collects the urine? how does the urin
torisob [31]

In which sections or section of the kidney is the urine formed? 

The final product of filtration, reabsorption, and secretion which is the urine is primarily formed in the renal medulla although the formation of the urine starts with the filtration of blood in the glomerulus then along the proximal tubules, descending and ascending loop of Henle, distal tubules, and collecting ducts. 


What section of the kidney collects the urine? 

The renal pelvis is the main section of the kidney that collects the urine. The renal pelvis arises from the confluence of the collecting ducts forming the renal papilla then the minor calyx and the major calyx and ultimately to the renal pelvis to be transported to the urinary bladder through the ureters.


How does the urine move from the kidney out of the body? 

The urine will be collected in the renal pelvis. With the urine collected in the renal pelvis, the urine moves from the renal pelvis to the urinary bladder through the ureters and will be stored in the urinary bladder. When there is an urge to urinate, the urinary bladder contracts and the urethral sphincter relaxes that allows passage of the urine from the bladder out of the body through the urethra.


In which main regions of the kidney are the glomerulus and the Bowman's capsule located? 

The glomerulus and the Bowman’s capsule are part of the renal cortex. These organs are responsible for the filtration of the blood from the afferent arteriole. The glomerulus and the Bowman’s capsule are not synonymous but rather the glomerulus comes from the afferent arteriole and the Bowman’s capsule functions as a filtration membrane. Together, they are called the renal corpuscle.


In which main regions of the kidney are the collecting ducts and the loop of Henle located?

The collecting ducts are located in the renal medulla whereas the loop of Henle are partly in the medulla, depending on the type of nephron. In superficial cortical nephrons, the dips only up to the outer medulla while in the juxtamedullary nephrons, the glomerulus is near the corticomedullary border wherein more parts of the loop of Henle is in the medulla.

3 0
3 years ago
Sea organisms rely on the deep oceanic currents for food and nourishment.
Paha777 [63]

Answer: Currents are powerful physical forces in the seas. They move water and heat around the globe, and help determine the chemical make-up of the water column. Currents also are a major factor in ocean ecosystems. Two types of current motion, upwelling and downwelling, strongly influence the distribution and abundance of marine life.

Upwelling

Currents play a huge role in marine productivity, through a process called upwelling. Sea life is concentrated in the sunlit waters near the surface, but most organic matter is far below, in deep waters and on the sea floor. When currents upwell, or flow up to the surface from beneath, they sweep vital nutrients back to where they're needed most.

Nowhere is the link between ocean circulation and productivity more evident than around Antarctica. There, strong currents pump nitrogen and phosphate up from the deep sea to fuel vast blooms of algae and other plants. These plankton are eaten by swarms of shrimp-like crustaceans called krill. Because of upwelling nutrients, krill are abundant enough to feed the largest animals on earth, baleen whales, as well as myriad penguins, seals, and seabirds. In fact, despite the harsh conditions, the biomass of Antarctic krill is thought to be greater than that of any other animal on Earth.

Downwelling

The importance of upwelling to surface organisms is matched by the need of sea bottom life for downwelling, or the sinking of surface water. Surface water can be forced downward by the pressure of the “pile” of water that forms where currents converge or wind drives the sea against a coastline. But for bottom dwellers, the sinking of water caused by density changes is especially noteworthy. The global conveyer belt takes oxygen-rich surface water and flushes it through the deep sea. Without this renewal, the dissolved oxygen in bottom sediments and waters would quickly be used up by the decay of organic matter. Anaerobic bacteria would take over decomposition, leading to a build up of hydrogen sulfide. Few benthic animals would survive such toxic conditions.

In the most extreme cases, a lack of downwelling may lead to mass extinctions. Paleontologists have suggested that 250 million years ago, deep circulation slowed nearly to a stop, and the ocean began to stagnate. Low oxygen, sulfide and methane-rich waters filled the ocean deeps and then spread onto the continental shelves, wiping out 95% of all marine species in the greatest extinction event in Earth history.

Explanation:

8 0
2 years ago
Read 2 more answers
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