Which organ in angiosperms is responsible for the reproductive function of the plant a roots B Flower c fruit? Flower is an organ in angiosperms responsible for the reproductive function of the plant. What is the reproductive organ of angiosperms? Angiosperms have male sex organs called stamens. On the end of the stamen is the […]

What is the major virulence factor associated with Corynebacterium Diphtheriae? Toxin. The main virulence factor of C. diphtheriae is diphtheria toxin (DT), an exotoxin, released by the bacteria after entering the human body. What toxin does diphtheria produce? Diphtheria toxin is an exotoxin secreted by Corynebacterium, the pathogenic bacterium that causes diphtheria. The toxin gene […]

What similarities and differences are there between plant and animal cells? Cells are the basic unit of a living organism and where all life processes are carried out. Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane. Plant cells have three extra components, a vacuole, chloroplast […]

Why are changes to the carbon cycle important? The changes in the carbon cycle impact each reservoir. Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger. Why are changes in the global carbon cycle […]

What makes up the majority of Biogenous sediment? List the two major chemical compounds that comprise most biogenous sediment, as well as examples of the organisms that produce them. The two most common chemical compounds in biogenous sediment are calcium carbonate (produced by foraminifers and coccolithophores) and silica (produced by diatoms and radiolarians). What are […]

What type of respiration releases more energy aerobic or anaerobic? Aerobic respiration releases 19 times more energy than anaerobic respiration from the same amount of glucose. Which stage of cellular respiration produces the most ATP? Krebs cycle Which releases more energy fermentation or cellular respiration? Cellular respiration releases energy more slowly than fermentation does. The […]

How do trees recover from fire? Plants can survive fires by re-sprouting from basal stems, and also from roots and horizontal rhizomes. What happens to trees after a forest fire? During wildfires, the nutrients from dead trees are returned to the soil. After fires, the charred remnants of burned trees provide habitats for insects and […]

Why is natural selection important to evolution? Natural selection is the process through which populations of living organisms adapt and change. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of […]

What is it called when two species Cannot interbreed? New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed. Can cryptic species interbreed? Cryptic speciation is a biological process that results in a […]

What type of connective tissue is in the spleen? Reticular connective tissue What fibers are found in the spleen? The red pulp is composed of a three dimensional meshwork of splenic cords and venous sinuses. The splenic cords are composed of reticular fibers, reticular cells, and associated macrophages (Saito et al., 1988). What does the […]