Darwin's proposed mechanism for evolution is natural selection. Natural selection allows species to respond to their surroundings through time, or to become progressively excellently-suited. Natural selection is environmentally based and involves established heritable variation within a population.
They lead to changes in species over time:
- Darwin suggested species will evolve over time, new species originate from pre-existing species, and all species share a common ancestor with each other.
- In this framework each organism has its own special set of heritable i.e genetic variations from the common ancestor that have slowly developed over very longer periods of time.
- Parroted branching activities that isolate new species from a common ancestor create a multi-level tree that connects all living organisms.
Answer:
What are to two types of gametes?
Sperm and Egg
A gamete is also known as?
Sex cells
What is the process called when the fusion of gametes create a zygote?
Fertilization
Is a zygote a diploid of haploid cells?
Diploid
<u>-TheUnknownScientist</u>
Answer:
1/2
Explanation:
Ggrr gives Gr, Gr, gr, gr
ggRR gives gR only.
So, the combination would be <u>GrRr</u>, <u>GrRr</u>, ggRr, ggRr
To have both dominant traits, the child has to GG or Gr, and RR or Rr
2/4=1/2
Answer:
Liver and Pancreas
Explanation:
Liver and Pancreas play an important role in maintaining blood sugar homeostasis
The pancreas has cells called Islets of Langerhans which release insulin and glucagon which are responsible for maintaining blood sugar levels.
Liver too plays an important role in the regulation of blood sugar levels by releasing glucose in response to glucagon.
