Science 9 - Unit A Review Slides

Science 9 - Unit A Review Slides

Multiple Choice

These puppies are from the same litter. They all share the same parents. This is an example of

• variation among species

• variation within species

• variation outside of species

Multiple Choice

The best term to describe a niche is...

• a group of the same organisms in the same area

• the role an organism plays in an ecosystem

• where an organism lives

• where an organism eats

Multiple Choice

Organism X lives in the body of organism Y. X feeds on nutrients from the body of Y. Both organisms benefit from this relationship.

This situation describes a relationship that is

• parasitic

• mutualistic

• coopoerative

• commensalism

Multiple Choice

The reason these two butterflies have adapted wing colours is for

• cooperation

• reproduction

• survival

Multiple Choice

Binary fission, budding, spore reproduction, and vegetative reproduction share what in common?

• They produce a variety of different offspring

• They produce identical offspring

• They reproduce through sexual reproduction

Multiple Choice

In order for sexual reproduction to happen, it requires

• two male gametes

• one female gamete

• a male gamete and female gamete

• two female gametes

Multiple Choice

The union of a male sperm cell with a female egg cell is referred to as

• pollination

• fertilization

• parthenogenesis

• asexual reproduction

Multiple Choice

In order for cross-pollination to be successful

• the pollen from one plant must be transferred to different plant's stigma

• the pollen from the same plant must be transferred to the same plant's stigma

• the pollen from the anther of the stamen is transferred to the stigma of the pistil

Multiple Choice

The jellyfish alternates between sexual and asexual reproduction.

An advantage of the jellyfish reproducing sexually is that sexual reproduction

• produces identical offspring

• allows for less crossing over of genetic material

• requires less energy to complete

• provides genetic variation in the offspring

Multiple Choice

The size and shape of our noses come in many different varieties. This is an example of

• heritable characteristics

• discrete variation

• continuous variation

• non-heritable characterities

Multiple Choice

It is commonly observed that blue-eyed parents produce offspring with blue eyes.

It can be concluded that eye colour is a

• heritable characteristic

• dominant characteristic

• recessive characterisitc

• non-heritable characteristic

Multiple Choice

The best response for the responsibility of DNA is

• storing chromosomes

• storing proteins

• storing genetic information

• transferring information

Multiple Choice

Each human contains 46 chromosomes. This means

• 23 chromosomes come from dad, 23 chromosomes come from mom

• 46 chromosomes come from dad

• 46 chromosomes come for mom

• 22 chromosomes from from mom, and 1 chromosome from dad

Multiple Choice

The chromosome theory of heredity states that genes on chromosomes are responsible for the inherited characteristics of organisms.

Which of the following statements summarizes the given information?

• Genes exist in pairs

• The human cell contains 46 chromosomes

• Chromosomes are composed of DNA and protein

• Gene determine hereditary traits

Multiple Choice

Which of the following statements about cell division is not correct?

• Mitotic division produces eight cells at one time

• Mitosis takes place in somatic body cells

• The process of meiosis occurs only in sex cells

• The process of meiosis produces a total of four cells, during two divisions

Multiple Choice

Mitosis is type of cell division that is responsible for all of the following functions except

• reducing the number of chromosomes by half

• maintaining the number of chromosomes

• helping in growth and cellular repair

• increasing the size of the organisms

Multiple Choice

Which of the following functions is not achieved through meiosis?

• Sexual reproduction

• Production of gametes

• Growth and cellular repair

• Recombination of genetic material

Multiple Choice

In the 1800's, the average sheep in Britain produced far more wool than did the average sheep at the beginning of the 1800s. This was most likely due to farmers choosing only the wooliest sheep as breeding stock.

This scenario is an example of

• artificial selection

• natural selection

• evolution

• cloning

Multiple Choice

The beef industry in Alberta depends on artificial reproductive technologies to produce cattle with high-quality meat.

Alberta farmers are raising high-quality cattle by using modern reproductive technologies such as

• cloning

• natural selection

• genetic engineering

• artificial insemination

Multiple Choice

Big, healthy corn cobs were developed by early Indigenous People's through the use of

• cloning

• random chance

• mutating genes

• artificial selection

Multiple Choice

Compared to colder regions, equatorial regions have

• a larger number and variety of species

• a smaller number and variety of species

• fewer species with more variety

• roughly the same number and variety of species, but with different characteristics from those in colder regions

Multiple Choice

Canada has designated many areas as national parks. According to a wildlife conservationist, the best reason to develop national parks is

• to save the natural biodiversity of the area by maintaining the interactions that naturally occur here

• to maintain pristine region of land to be admired by all citizens now and into the future

• to bolster local and provincial economies by providing a setting ideal for tourism

• by stop the over-hunting of animals from legal to illegal hunting