WorksheetsPractice test
Total questions: 30
Worksheet time: 15mins
Many organisms are _____________—so small that they cannot be seen with the naked eye.
microscopic
gigantic
small
ordinary
All living things are made of __________.
wood
bone
cells
blood
Almost all cells are _______________.
animal cells
plant cells
visible to the naked eye
microscopic
Even though they are both too small to see, cells are much ___________ than molecules.
larger
smaller
The human microbiome contains approximately 100 trillion ___________. Most of these are bacteria.
microorganisms
blood cells
fungi
C. jejuni
The human body provides an environment (food and _______) for bacteria to survive.
nitrogen
blood
oxygen
space
A healthy _______________ has various helpful types of bacteria.
nanometer
micrometer
microbiome
computer
An infection of harmful bacteria in the human microbiome can make a person __________.
healthy
happy
sick
hungry
Antibiotics reduce the number of ________ and harmful bacteria in the microbiome.
dangerous
microscopic
single-cell
helpful
Living things with ________ than normal helpful bacteria in their guts can become infected more easily because there is more food and space available for harmful bacteria.
fewer
more
True or False: Fecal transplants are both gross and unable to help with bacterial issues in the gut.
True
False
True or False: Patient 23 was able to eliminate ONLY the C. jejuni bacteria and no other types of bacteria by taking an antibiotic.
True
False
Is it possible for there to be bacteria or fungus to be growing on something without it being visible to the naked eye?
Yes, bacteria and fungi are microscopic.
No, we should see it if it is there.
Which is the lowest level of classification?
Kingdom
Family
Species
Genus
What is dichotomous key?
Which one is true ?
There can be multiple ways to classify organisms
We have explored all the species on earth
Two different species can interbreed frequently
Taxon species contains most number of organisms
The process by which plants make their own food is (a) .
Which plant part helps in sexual reproduction ?
Seed
Root
Flower
None of these
What is the role of plant in our ecosystem?
Can plants also classified ?
Yes
No
May be
Which are the organs of digestive system ?
Stomach
Kidney
Heart
Rectum
Which organ is/are part of immune system?
Liver
Spleen
Thymus
Both B and C
Which cells are like soldiers of body ?
RBC
WBC
Neurones
Muscular cells
What is symbiotic relationship? Give one example for the same.
What are chemical messenger of the body?
(a)
What is food chain ? Write one such food chain.
Which Should be the major proportion In our diet?
Protein
Carbohydrates
Roughage
Fats
What are the abiotic components of an ecosystem?
Light
Bacteria
Humidity
Temperature
Is adaptation required for an organism to survive ? Why?
Which of the following units is most interesting?
Cell and organisms
variation and classification
Plants
Human as an organism
Organisms in their surrounding
