Answer:
Please see below
Explanation:
Having a single layer of phospholipid would mean that regulation of substances moving in and out of the cells will be possible in one direction only i.e., in or out of the cell (depending on which side the layer is present). The single layer may not be able to hold the shape of the cell as effectively. It is very likely that almost all of the cell's functions are impacted due to this change.
Answer:
(B) resemble structures formed by bacterial communities that are found today in some shallow marine bays.
Explanation:
Extant stromatolites represent real "living fossils" for they are decendents of ancient forms that are associated with one of the first living forms on earth. Particularly, stromatolites are real bacteria communities where the autotrophic organism of the community are represented by cyanobacteria, which live along with heterotrophic bacteria. This clearly indicates that fossilized stromatolites points to bacteria (prokaryotes) as the first living things on earth (dated with not less than 3.5 billion year old)
Nowadays, stromatolites with cyanobacteria allows to reconstruct and understand fossilized forms. These current structures live in shallow marines ambients (e.g. Australia) but also in continental salt flats (e.g. Argentina) where few others bacteria can survive to these extreme conditions (high light exposure and salt concentration).
<span>Ribonucleic acid (RNA) occurs
primarily as single strands, often giving rise to single polynucleotide
structures. RNA is a polymeric molecule
that is responsible for the regulation, coding, decoding and expression of
genes. Each nucleotide has a ribose sugar attached to the carbon, a base that
is composed of purines and pyrimidines, a negatively charge phosphate groups
and a hydroxyl group which causes helix to mostly adopt the A-form geometry.</span>
Jessica's symptoms of endometriosis can't be alleviated as its return could be experienced.
<h3>What is Endometriosis?</h3>
This is a disorder which occurs when tissue that is similar to the tissue that lines the uterus grows outside of it.
It is characterized by pain and menstrual irregularities symptoms and is usually managed through hormone therapy as the symptoms can't be permanently alleviated.
Read more about Endometriosis here brainly.com/question/13178667
