Biology, 20.10.2021 09:50 oofoofoof1
The diagram is a model of the structure of a certain type of cell. Like all models, the diagram is accurate in many ways but does not show all features or properties. For example, the
structure labeled 2 may take on a variety of sizes, depending on the amount of water available to the cell. The structure labeled 4 occurs in different numbers in different comples of the
cell. It has a characteristic green color and is involved in energy transformation.
What is the chemical composition and purpose of structure 3?
O It is made of chitin, and acts to protect and support the cell.
It is made of DNA and proteins, and acts to control cell activities.
It is made of cellulose and other carbohydrates, and acts to protect and support the cell.
It is made of a lipid bilayer and proteins and acts to allow passage of certain substances in and out of the cell.
Answers: 2
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species
Answers: 3
Biology, 22.06.2019 00:00
Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.
Answers: 1
Biology, 22.06.2019 04:00
The transport tubes from food came down the plant are called?
Answers: 1
Biology, 22.06.2019 05:00
Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.
Answers: 2
The diagram is a model of the structure of a certain type of cell. Like all models, the diagram is a...
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