Biology, 01.10.2019 13:20, lizzie3545
Recent work in classification of life on earth has shown that what were once called prokaryotes are much more diverse than ever suspected. the prokaryotae are now divided into two domains, the eubacteria and the archaeabacteria, as different from each other as either is from the eukaryota. no one of these groups is ancestral to the others, and each shares certain features with the others as well as having its own unique characteristics. one group of prokaryotae, the blue-green algae, have left a fossil record that is dated to be nearly 3.5 billion years old, among the oldest fossils currently known. these blue-green algae had cell walls and were photosynthetic. considering this, where would you place the cyanobacteria in this cladogram?
a) archaebacteria
b) eubacteria
c) plantae
d) protista
Answers: 2
Biology, 22.06.2019 03:00, CatsandDogsaredabest
During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.
Answers: 3
Biology, 22.06.2019 09:30, imaboss10986
Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?
Answers: 2
Biology, 22.06.2019 11:00, isaiahromero15
Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.
Answers: 1
Biology, 22.06.2019 13:30, nstacie40
Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.
Answers: 2
Recent work in classification of life on earth has shown that what were once called prokaryotes are...
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