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shtirl [24]
3 years ago
13

When a pregnant woman's "water breaks" what is actually happening is

Biology
2 answers:
erma4kov [3.2K]3 years ago
6 0

the amniotic sac breaks i believe





Elan Coil [88]3 years ago
4 0
The amniotic sac breaks 
______________________________________________________xo ♡ -Cote

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Considering the drifting of continents, how do you explain the abundance of marsupials and the absence of native placental mamma
garri49 [273]

Answer:

this phenomenon is a natural consequence of evolutionary processes and continental drift  

Explanation:

Marsupials are mammals in which newborn offspring are carried in a pouch of the female (mother) body. On the other hand, placentals are mammals that complete embryo development in the mother's body, in the placenta. All the extant marsupials are endemic to Australia and the Americas. It has been shown that marsupials diverged (evolved) in South America, Australia and Antarctica when these landmasses were joined. In Australia, marsupials evolved to fit an ecological niche, which can be attributed to geographic isolation due to continental drift, while placental mammals are relatively recent and more scarce (mainly bats and rodents) within this region.

5 0
3 years ago
A farmer decides to go into the business of raising trout for tourists who enjoy fishing. She builds six trout ponds and stocks
Nastasia [14]

Yes the following statements about her trout is likely true Because the ponds are different and the populations are likely to experience different mutations, the populations will likely diverge evolutionarily, but only over many generations.

Explanation:

The effect of genetic drift can be seen in all populations but the most is seen in small population. The change in allele frequency due to the sampling error would lead to evolution of the species.

Bottleneck effect is when a population gets reduced due to some natural disaster. Her friends were not right about bottleneck effect.

So it is clear that no bottleneck effect will occur as each pond have different chance or rate of mutation and the change in alleles will be different. The  trouts will evolve independently in the different ponds and pass on the traits to their progeny.

Genetic drift does not take into account for the harm or benefit of the alleles that are passed on.

5 0
3 years ago
Angiosperms are different from all other plants because only they have _____
Maru [420]

FRuit and flower producer

6 0
3 years ago
HURRY PLEASE I NEED A PARAGRAPH. Describe how cell membranes are selectively permeable.
Simora [160]

Explanation:

Cell membranes are selectively permeable. Some solutes cross the membrane freely, some cross with assistance, and others do not cross at all. A few lipophilic substances move freely across the cell membrane by passive diffusion. ... Large molecules do not cross intact cell membranes, except in certain special cases.

4 0
3 years ago
When plates slide past each other, the edges of these plate blank zones
atroni [7]

Answer:

A. Earthquake

Explanation:

When plates slide past each other, the edges of these are earthquake zones. Earthquakes are formed but not volcanoes.

8 0
3 years ago
Read 2 more answers
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