<span>1.keeps tooth alive
</span><span>pulp
2.surface of teeth
enamel
3.tube carrying food to stomach
esophagus
4.last major organ in digestive system
large intestine
5.digestive organ located above waist, close to ribs
stomach
6.first stage of digestion takes place here
mouth
7.regular squeezing movements
peristatiss
8.blood vessel leading from heart
artery
9. windpipe
trachea</span>
Answer:
Genetic engineering
Explanation:
So there's Environmental degradation ,Ecological succession
Genetic engineering , Selective breeding . and so all the other ones aren't related to the materiel in corn so that makes it Genetic engineering ing
I believe it is A because I know Nonpoint source pollution can include excess fertilizers, herbicides and insecticides from
Agricultural lands and residential areas. I hope it is right.. please let me know
Answer:
- Interruption in the genetic flow between separated groups
- The emergence of new mutations in each of the groups, and their accumulation in time. Slow and gradual differentiation between populations.
- Genetic divergence by natural selection and reproductive isolation
- Prezigotic isolation mechanisms
Explanation:
Allopatric speciation consists of the geographic separation of a continuous genetic background that can give place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate populations, or geological events. In this speciation, some barriers impede genetic interchange, or genetic flux, as the two new groups that are separated can not get together and mate anymore. These barriers might be geographical or ecological.
The process of allopatric speciation involves different steps that affect organisms:
- The emergence of the barrier.
- Interruption in the genetic interchange
- The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
- Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.
- Prezigotic isolation mechanisms will be favored by selection if occurs a secondary contact between the new species in formation.
Answer:
The correct answer is - A. Growth 1, Synthesis, Growth 2.
Explanation:
The cell cycle has three important phases Interphase, M -phase and cytokinesis. Interphase is the laongest phase of eukaryotic cell cycle. This phase shows no observational change in the cell, however, it collects nutrients, generates protein and replicates DNA and prepare the cell for the M- phase.
Interphase has 3 phases G1, S, and G2 phase. G1 phase is the phase that collects nutrients and increase the size of the cell for the cell division. S phase or synthesis phase is the phase takes maximum time in cell divivon and acompanied by protein generation, duplication of the genetic material. G2 phase is preparatory phase that prepeare the cell before the cell enter in the M - phase.
