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Jairo Schinner ∙
Organs are made up of several tissues that work together to form structures which carry out the same job.
the endocrine and the nervous systems work together to maintain homeostasis
Red blood cells coagulate wounds; white blood cells defend against bacteria.
u will get breathing problems
There must be genetic variation in the population
The system must not be in hardy-weinberg equilibrium.
resources must be limited in the ecosystem
Platelets
The distribution of alleles changes due to random chance.
or
The allele frequency of a population changes due to a bottleneck effect. <apex>
signals travel from neuron to neuron through neurotranmitters
Population bottlenecks
Reproductive isolation
Niche availability
eyes develop
lips start to form
Vocal cords develop.