1)_____________, or disease-causing, bacteria represent only a small proportion
ID: 59960 • Letter: 1
Question
1)_____________, or disease-causing, bacteria represent only a small proportion of the total number of species of bacteria.
2) All bacteria have _______________, a polymer consisting of sugars and amino acids, in their cell walls.
3)Many protists have a colored eyespot, more correctly known as a _________.
4)Why was methylcellulose used in the lab exercise with protists?
5) The plants Polytrichium:
A) seedless tracheophyte
B) seedless non-tracheophyte C) seed-bearing tracheophyte D) seed-bearing non-tracheophyte
6)Plant vascular tissue is composed of a)
which transports water and minerals and b) which transports nutrients through
the plant.
7)Why should you work near the Bunsen burner when using aseptic technique?
8)What is the function of a microscope’s diaphragm?
9)
Fill in the steps to the scientific method:
Make observations Develop a hypothesis ________ Record results ____________
10)__________ is a change in allele frequencies in a population over time.
11)The alternation of generations of plants consists of plants alternating between which two generations?
12)________ and _____________ are the two prokaryotic domains of life.
13)Kingdom Protista is __________.
A) monophyletic B) paraphyletic C) polyphyletic D) psychotic
14)True or False: A fact in science is a truth that can never be changed.
15)How do liverworts transport water and/or nutrients through their tissues?
16)True or False? The words "hypothesis" and "theory" are often used interchangeably in everyday language, because a scientific hypothesis is the same as a scientific theory.
17)_____________is the use of someone else’s words or ideas without crediting the source
18)Mulberry bushes are _________, meaning their male and female reproductive parts are located on separate flowers on separate plants.
19)There are a number of reasons that dinoflagellates are ecologically important, particularly in Florida. Name one.
20)Name two ways that bacteria benefit humans.
21) When using a compound microscope, as you increase the magnification you also need to ________ the light level
A. increase B. decrease C. maintain
22)
Explanation / Answer
Pathogenic Peptidoglycan Stigma Methyl cellulose is a soluble thickening agent that slows the organism down so you have time to examine it. A) seedless tracheophyte a) xylem b) phloem A bunsel burner will always create an upward flow of air so that microbes have a less chance to contaminate. With the diaphragm we can set different sized holes to vary the intensity and size of the cone of light that is projected upward into the slide Test hypothesis by experiments, formulate a conclusion/accept or reject hypothesis Genetic drift Gametophyte, sporophyte Archea, Eubacteria B) paraphyletic False They do not have specialized tissues for water transport. As they are tiny, they do not need it in the first place. They just absorb water by diffusion.
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