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dexar [7]
3 years ago
13

Why cant any living organism suvive on the martain surface?

Biology
1 answer:
TiliK225 [7]3 years ago
8 0
The atmospere doesnt contain enough oxygen and the temperature is way to cold
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The mechanical stress applied to bones during moderate physical exercise leads to
Vadim26 [7]

Answer;

-Bone tissue becoming stronger.

The mechanical stress applied to bones during moderate physical exercise leads to bone tissue becoming stronger.

Explanation;

-Bones and muscles both become stronger when muscles push and tug against bones during physical activity.Swimming and bicycling are not weight-bearing activities, so they do not directly help build bones. But swimming and bicycling do help build strong muscles, and having strong muscles helps build strong bones.

-Weight-bearing physical activity causes new bone tissue to form, and this makes bones stronger. This kind of physical activity also makes muscles stronger. Bones and muscles both become stronger when muscles push and tug against bones during physical activity.

8 0
2 years ago
Match the gastric phase on the left (1-3) with the correct description on the right (4-6):
dem82 [27]

Answer:

1 and 5,

2 and 6,

3 and 4

Explanation:

Intestinal phase: stomach empties and decreases secretions

The intestinal phase is the phase where stomach empties its contents(chyme) and decreases secretion. In this stage the duodenum responds to arriving chyme and moderates gastric activity through hormones and nervous reflexes.

The Chyme is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum.

Gastric phase: stomach secretes juice and mixes food into chyme

The gastric phase is a period in which swallowed food and semi-digested protein ( peptides and amino acids ) activate gastric activity  which secretes juice and mixes food into chyme. About two-thirds of gastric secretion occurs during this phase.

Cephalic phase: prepares stomach for arrival of food

The cephalic phase of digestion is the gastric secretion that occurs prior to when food enters the oral cavity. Cephalic phase result from the ignition of  visual, olfactory, and auditory inputs to the brain and also induce anticipatory responses i.e  prepare the gastrointestinal tract for the meal.

4 0
3 years ago
Qué tipo de nutrientes proporciona la planta de vid a los seres que la consumen​
zloy xaker [14]

Answer:

I don't know what you said

Explanation:

7 0
2 years ago
to any 8th graders or 7th graders that take technology, what are you currently learning in technology class?
Anika [276]

Answer:

i'm learning DIT

Explanation:

so this year we were learning excel, word, and PowerPoint. currently we are learning how to use word in the beginning it was excel because my teacher said it was the hardest and would take the longest then we learned PowerPoint and last we learned word

3 0
3 years ago
In the body, red blood cells have a much shorter lifetime than cheek cells.
anyanavicka [17]
Red blood cells do not have a nucleus.
It does not consist of a cell membrane or a cytoplasm.
It simply only transports oxygen around the body.
Pls mark me brainliest:)
8 0
2 years ago
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