Answer:
4
Explanation:
A nucleotide consists of a sugar molecule attached to a phosphate group and a nitrogenous base
the relationship between DNA, codons, amino acids, and proteins. During transcription, DNA is transcribed into messenger RNA when the the base codes in DNA are copied. mRNA serves as the code for assembling amino acids in a certain order.
<span>Amniotic cavity is the term used for the sac which protects
an embryo from internal and external pressures. It contains the amniotic fluid which
serves as the cushion for guarding the developing embryo and the system to
which it is being fed on. It is a crucial part of pregnancy to be able to take
tests in diagnosing the fetus for possible defects and abnormalities and one of
the methods used is the amniocentesis wherein samples of the amniotic fluid are
sampled.</span>
Answer:
The answer is C
Explanation:
Habitat destruction is the most cause of extinctions. As deforestation continues in tropical forests, it causes mass extinctions among organisms.
All species have specific food and habitat needs. The more specific these needs and the more localized the habitat, the greater the vulnerability of species to loss of habitat to agricultural land, livestock, roads and cities. This is because the organisms are already adapted to the environment and any changes can prove disastrous for them.
In the future, the only species that survive are likely to be those whose habitats are highly protected, or whose habitat corresponds to the degraded state associated with human activity.
Answer:
A conductor is a material which contains movable electric charges, An insulator is a material that has a large band gap, or a large energy difference between the valence and conduction band, And a metalloid is a chemical element that exhibits some properties of metals and some of nonmetals.
Explanation:
