Describe predator and prey relationships State the meanings of the ...

roachavocadoBiotechnology

Dec 14, 2012 (4 years and 10 months ago)

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Unit 2

Environmental Biology
and Genetics

Energy Flow in Ecosystems


Energy Flow in Ecosystems


Learning objectives:


By the end of the lesson you should be able to:


Explain the meaning of the words


Ecosystem


Habitat


Population


Community


Niche


Energy Flow in Ecosystems


Learning objectives:


By the end of the lesson you should be able to:


Explain how food chains and food web are
constructed in terms of producers and
consumers.




Energy Flow in Ecosystems


Learning objectives:


By the end of the lesson you should be able to:


Describe the flow of energy in an ecosystem


Explain how energy can be lost from an
ecosystem


Energy Flow in Ecosystems


Learning objectives:


By the end of the lesson you should be able to:



Describe predator and prey relationships


State the meanings of the words
herbivore, carnivore and omnivore


Factors Affecting The Variety of
Species in an Ecosystem

Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


State the meaning of the word Biodiversity


State the meaning of the word Species


Explain what makes an ecosystem stable



Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Explain how animals and plants have adapted to
their environment giving named examples of species
and their adaptation.



Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Describe the effect of very high, high and low
intensity grazing on species diversity.


Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Describe the effects of human activity on species
diversity.


Explain the effects of pollution on species diversity.


Explain the effects of habitat destruction on species
diversity.



Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Describe behavioural adaptations in animals
using woodlice as an example.



Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Describe competition in plants explaining which
resources plants compete for.


Describe competition in animals explaining which
resources animal compete for.



Factors affecting the variety of
Species in an Ecosystem


Learning objectives:


By the end of the lesson you should be able to:


Explain the meaning of continuous and
discontinuous variation.


Give examples of continuous and discontinuous
variation using both plants and animals



Genetics

Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the name of the structure which carries genetic
information.


Describe what chromosomes are made of.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


Explain what DNA codes for.


Describe the relationship between protein function
and organisms characteristics.

Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the name of male and female gamete in
animals


State where male and female gametes are made in
animals.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the name of the male and female gametes in
plants.


Describe where male and female gametes are
formed in plants.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


Describe how a zygote is formed.


Explain how variation in gametes is ensured.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


Describe the stages of Meiosis: in which a single sex
cell divides to produce four gamete cells

Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the number of chromosomes present in adult
humans.


State the number of chromosomes present in human
gametes

Genetics


Learning objectives:


By the end of the lesson you should be able to:


Explain how the gender of a human is determined in
terms of chromosomes


Genetics


Learning objectives:


By the end of the lesson you should be able to:


State what a gene is


State what an allele is and how many are found in a
gene.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the meaning of the terms


Homozygous


Heterozygous


Dominant


Recessive


Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the meaning of the terms


Genotype


Phenotype


Describe the relationship between an organisms
genotype and phenotype.

Genetics


Learning objectives:


By the end of the lesson you should be able to:


State the meaning of the terms


True breeding


P


F1


F2


Genetics


Learning objectives:


By the end of the lesson you should be able to:


Solve problems in relation to monohybrid crosses
from the P generation to the F2 generation using
dominant and recessive alleles.



Genetics


Learning objectives:


By the end of the lesson you should be able to:


To predict ratios of offspring genotype in
monohybrid crosses.


State the reasons for differences between observed
and predicted figures in monohybrid crosses.

Genetics


Learning objectives:


By the end of the lesson you should be able to:


State what is meant by the term co
-
dominance.


Solve problems related to crosses involving co
-
dominant alleles.


Genetics


Learning objectives:


By the end of the lesson you should be able to:


Describe polygenic inheritance


Genetics


Learning objectives:


By the end of the lesson you should be able to:


Explain the impact of the environment on the
phenotype of an organism.


Describe how identical twins or clones can be used
to assess the impact of the environment on a
organisms phenotype.


State whether environmental impact on phenotype
can be passed on to the next generation.


Evolution and Genetic
Engineering

Evolution and Genetic
Engineering


Learning objectives:


By the end of the lesson you should be able to:


Define the term Natural Selection.




Evolution and Genetic
Engineering


Learning objectives:


By the end of the lesson you should be able to:


Describe the process of Natural Selection in the
Peppered Moth.

Evolution and Genetic
Engineering


Learning objectives:


By the end of the lesson you should be able to:


Explain the process of selective breeding.


Describe the advantages and disadvantages of
selective breeding.

Evolution and Genetic
Engineering


Learning objectives:


By the end of the lesson you should be able to:


Describe the process of genetic engineering from the
identification of a desired gene to the synthesis of
the desired product.


Evolution and Genetic
Engineering


Learning objectives:


By the end of the lesson you should be able to:


State some of the medicinal products produced by
genetic engineering.


Describe the advantages and disadvantages of
genetic engineering.