End of year 11 Formative Quzz

Front

Cattle egrets forage in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not. What type of relationship is this?

Back

commensalism

Answer explanation

The relationship between cattle egrets and cattle is an example of commensalism. The egrets benefit by feeding on insects disturbed by the cattle, while the cattle are unaffected by the presence of the egrets.

Front

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

Back

parasitism

Answer explanation

The relationship between a tapeworm and a cat is an example of parasitism, where the tapeworm benefits by absorbing nutrients at the cat's expense, causing harm to the host.

Front

What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.

Back

mutualism

Answer explanation

The relationship between hummingbirds and flowers is mutualism because both benefit: hummingbirds get nectar for food, while flowers are pollinated, aiding their reproduction.

Front

What is the species Richness of this ecosystem? Options: 6, 18, 3, 2

Back

6

Answer explanation

Species richness refers to the number of different species in a community. In this case, the community has 6 distinct species, making the correct answer 6.

Front

What is the abundance for species A? Options: 25, 15, 18, 10

Back

15

Answer explanation

The abundance for species A is determined to be 15, as it is the correct choice among the options provided. The other values do not match the specified abundance.

Front

Which site has the greatest biodiversity? Site A, Site B

Back

Site B

Answer explanation

Site B has the greatest biodiversity due to its varied ecosystems, which support a wider range of species compared to Site A. This diversity is crucial for ecological balance and resilience.

Front

Is soil a biotic or abiotic factor?

Back

abiotic

Answer explanation

Soil is considered an abiotic factor because it is a non-living component of the ecosystem. It provides nutrients and support for biotic factors like plants and animals, but itself does not possess life.

Front

Is water a biotic or abiotic factor?

Back

abiotic

Answer explanation

Water is considered an abiotic factor because it is a non-living component of the environment that affects living organisms. Biotic factors are the living parts of an ecosystem, while abiotic factors include elements like water, air, and minerals.

Front

Is competition within a species a biotic or abiotic factor?

Back

biotic

Answer explanation

Competition within a species involves interactions between living organisms, making it a biotic factor. Biotic factors are related to living things, while abiotic factors are non-living elements in the environment.

Front

Position that an organism occupies based on what it eats

Back

Trophic level

Answer explanation

The term 'trophic level' refers to the position an organism occupies in a food chain, based on its feeding relationships and what it consumes. This makes 'trophic level' the correct answer, as it directly relates to dietary habits.