In 1861 Louis Pasteur observed that yeasts, a facultative anaerobe, grow in a sugar and protein broth completely free of air, i. e. oxygen, and for every gram of yeast that forms 60-80 grams of sugar disappear from the broth. If the experiment is performed with air, i. e. oxygen, for one gram of yeast formed, 4 to 10 grams of sugar is removed from the broth. When this experiment was performed with only protein in the broth, the yeasts only grew in the presence of oxygen. 1. Explain the three different outcomes of the experiments on yeasts based on your knowledge of microbial metabolism.
2. Pasteur concluded that yeast take oxygen from the air and in the absence of air take oxygen from the sugar. Why is this incorrect?

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.  

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.