Suppose that the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species?

#Question id: 5748

#Unit 8. Inheritance Biology

#Question id: 11112

#Unit 7. System Physiology – Animal

The respiratory movement representing the total amount of exchangeable air is the:

#Question id: 1243

#Unit 4. Cell Communication and Cell Signaling

One form of receptor desensitization can be mediated by negative feedback involving phosphorylation of the receptor itself by a kinase activated downstream of a second messenger. The phosphorylated receptor likely:

#Question id: 5668

#Unit 5. Developmental Biology

Following statements are made in relation to the five widely recognized stages of Arabidopsis embryogenesis:

A. The fusion of haploid egg and sperm takes place in zygotic stage

B. Rapid cell division in two regions on either side of the future shoot apex forms globular stage

C. The cell elongation throughout the embryo axis and further development result in Torpedo stage

D. The embryo loses water and becomes metabolically inactive in the torpedo stage

Which combination of the above statements is correct?

#Question id: 8704

#Unit 9. Diversity of Life Forms

To apply the principle of maximum parsimony to construction of a phylogenetic tree, ________.