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Anika [276]
4 years ago
15

Contractions of the small intestine have three functions: mix chyme with digestive juices, allow for

Biology
1 answer:
valina [46]4 years ago
7 0
Contraction for the small intestine also allow for increasing the surface area for absorption of nutrients by the walls of the small intestine and also to allow the undigested food substances to be moved from the small intestine to the large intestine

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During stressful situations the ___ nervous system is activated.
antiseptic1488 [7]
During stressful situations the sympathetic nervous system is activated <span />
8 0
3 years ago
What most likely happens when lithospheric plates move apart deep below the ocean?
Alisiya [41]

Magma seeps up along plate boundaries and forms mountains.

Factor 1 creates competition and factor 2 creates genetic variation.

Explanation:

Question 1: Magma seeps up along plate boundaries and forms mountains.

When lithospheric plates move apart they create divergent plate margin where magma seeps up along the plate boundary and forms series of mountains. The mid oceanic ridge was formed this way.

  • The lithosphere lies on the weak and molten asthenosphere.
  • Different plate interactions produces a wide range of plate movement.
  • Along a divergent margin usually, two oceanic plates are forced to move apart.
  • The forces the asthenosphere to rise through seeps as magmatic bodies.
  • The rising magma them crystallizes along the margins of the plate to form mountain chains like the mid-oceanic ridge.
  • It is common to find young rocks at the plate margin and the older ones away from spreading centers.

Learn more:

lithosphere brainly.com/question/9582362

Question 2: Factor 1 creates competition and factor 2 creates genetic variation.

Scarcity of space leads to competition between organisms and availability of mates creates genetic variations.

  • In an ecosystem with limited space, there will pressure on available resources.
  • This will lead to different organism developing strategies to efficiently adapt to their environment.
  • Organisms will in turn begin to compete with one another for the limited resources.

When we have a diverse number of mating options, genetic variation occurs. This suggests that we can have different gene combination as a result of the mating organisms.

A variation in the genetic pool of a place leads to better adaptable traits to survive the environment.

learn more:

Natural selection brainly.com/question/10367884

#learnwithBrainly

8 0
3 years ago
Look at the diagram. What is the name of muscle 1?<br> Enter your answer<br> 2<br> 4
NNADVOKAT [17]
Bicep I’m pretty sure
3 0
3 years ago
If a parent cell has 18 chromosomes, each daughter cell following meiosis II will have ________ chromosomes
bogdanovich [222]

Meiosis II will have 18 chromosomes.

Meiosis:

  • Somatic cells divide during meiosis, a process in which the genetic makeup or quantity of chromosomes in the daughter cells is maintained.
  • In sexually reproducing organisms, a kind of cell division known as meiosis results in a decrease in the number of chromosomes in gametes (the sex cells, or egg and sperm). Human body cells, also known as somatic cells, have two sets of chromosomes and are diploid (one from each parent).
  • A single cell splits twice during the meiosis process, resulting in four cells with half the original genetic material. These cells—sperm in men and eggs in women—are our sex cells.

Learn more about meiosis here brainly.com/question/16249478

#SPJ4

7 0
2 years ago
Describe five cultural or societal values (anything to do with humans except economy) of an estuary
pochemuha

The five major types of estuaries classified by their geology are coastal plain, bar-built, deltas, tectonic and fjords. In geologic time, which is often measured on scales of hundreds of thousands to millions of years, estuaries are often fleeting features of the landscape.

8 0
3 years ago
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