The lineage that first separated from the common ancestor of all animals, and retains many of those primitive features to this day, is the __________
What is sponge
100
Humans appeared this many years ago
What is 6 million
100
Which insect order has the most species currently named by scientists?
What is BEETLES
100
The undersides of the arms of a sea star are carpeted with ___________________
What is tube feet
100
action of transferring pollen grains from an anther onto a stigma is:
What is pollination
200
If you don't move like sponges you are considered a _______ animal
What is sessile
200
a food-storing tissue of the seed
What is endosperm
200
The world’s tallest and longest-lived trees are:
What is conifers
200
The threads that make up the mycelium of a fungal body are called:
What is hyphae
200
placentas and mammary glands distinguish __________ from other animals
What is mammals
300
A population of Escherichia coli can double every ______ in an ideal laboratory culture
What is 20 minutes
300
Which came first, the chicken or the egg?
What is egg evolved before chickens
300
You are eating in a French restaurant and read that snails are on the menu. Being a knowledgeable biologist, you kindly inform the other members at the table that this restaurant is serving the ___________ class of mollusks.
What is Gastropod
300
What causes genital herpes? Bacteria, Virus, Arthropod, or Tapeworm
What is Virus
300
Protein coat of a virus is also referred to as its
What is capsid
400
Bacteria that cause disease
What is pathogenic bacteria
400
Cells that cnidarians use to capture prey are called
What is cnidocytes
400
Earthworm phylum
What is platyhelminthes
400
Leeches Phylum
What is Annelida
400
________________ is a virus that infects the widest range of mammals.
What is rabies
500
These microbes thrive in very extreme (with respect to temperature, salinity, pressure, etc.) environments.
What is archaea
500
Each angiosperm pollen grain contains how many sperm cells?
What is 2
500
In the United States, about 25 million pounds of antibiotics, more than eight times as much as used in human medicine, are used in:
What is agriculture
500
Bacterial transduction begins when a kind of virus called a ___________________ infects a bacterial cell.
What is bacteriophage
500
Small circular DNA molecules capable of self-replication are called: