Biology Flashcards
(45 cards)
What does adaptation mean?
Adaptation means how they adapt to the environment around them, to suit their needs to help them survive eg changing to fit their environment
What does conservation
Conserving means to stay alive and conserve their species or to conserve a endangered species to keep them alive eg zoo
What does Mrs Nerg mean?
M- movement R- respiration S- sensitivity N- nutrition E- excretion R- reproductive G- growths
What does extinction mean?
Extinction is when all members of a species has died
Why is it important to conserve forests?
It is important to conserve forests because they are habitats for many species and help, they also store carbon which helps reduce global warming. They also provide wood and paper and add nutrients to the soil
Why is it important to conserve soil
It is important to conserve soil because it is vital to our food production, this is because we need high quality soil in order to grow the crops that we depend on to live. Soil is also very important for plants to grow. Without it, other types of conservation methods lie plant conservation etc wouldn’t exist
Why is it important to conserve biodiversity?
It is important to conserve biodiversity because biodiversity is the variety of living things that populate our earth. A lot of benefits and products we get from nature heavily relies on biodiversity. We need a mixture of rich medicines, building materials and food. We also need this to maintain a healthy landscape
Why is it important to conserve fossil fuels?
Fossil fuels are fuels (diesel etc) that are produced from remains of old plants. This includes: natural gas, petroleum (which is oil). We rely on these things to power vehicles such as airplanes, cars and even electricity.
Why is it important to conserve minerals?
Minerals are heavily farmed for their benefits. These methods often pollute the water and devastate their surroundings and deplete the ores of their minerals
Why is it important to conserve water?
It is important to conserve water because Water is important because although we won’t run out as the whole world is covered in water, but only 2.5% is freshwater and 70% of the freshwater is frozen. Meaning that not a lot of the water can be used by humans for farming, drinking etc.
What might adaptations in the wild be?
Adaptations can both be Physical (Giraffes have long necks in order to reach leaves in trees high up) and Behavioural (Desert foxes sleep in the day (nocturnal) and hunt at night)
What is the role of zoos in conservation?
Zoos help conserve animals by ensuring that endangered species won’t be hurt or killed.
What are the 6 food groups?
The 6 food groups are carbohydrates, protein, lipids, fibre, vitamins and minerals)
What do we need carbohydrates for?
We need Carbohydrates because they give us energy a example being bread etc.
What do we need protein for?
We need protein to help our bodies grow and repair a example being meat
What do we need fats for?
We need fats because they help keep us warm and store energy a example being Nuts
What do we need fibre for?
We need fibre because it improves cholesterol and helps digestion
What do we need minerals for?
We need minerals in small quantities to help aid other functions
What do we need vitamins for?
We need vitamins to help our immune system and strengthen bones
What is the dentition in herbivores?
A sheep (herbivore) only has incisors in the lower jaw which bites against a horny pad in the upper jaw to chop off pieces of grass. It also has a large gap between their front and back teeth called a diastema where the grass collects and is rooted before being pushed back into the molars. The sheep also has molars which are large and flat with sharp ridges for grinding up plant material.
What is the dentition in carnivores?
A dog (carnivore) has incisors which are used to rip or scrape meat off bones, it has premolars which have serrated edges to help cut meat into smaller pieces (these are the most numerous teeth in dogs). They have Carnassials, the 4th premolar in the upper jaw (1st molar in second) these are the largest teeth in the mouth and are highly specialised. They have 3 roots, are self sharpening and are arranged in order to shear meat off bones. Molars are large flattened surfaces used to crush and grind bones.
What does population mean?
population is the number of living things that live together at the same time
What does species mean?
a group of living organisms consisting of similar individuals capable of reproducing
What does ecosystem mean
Ecosystem has living and non-living (air, water soil) are co-dependant on each other to survive
