Which of the following statements about pattern formation are true? Select the four statements that are true. View Available Hint(s) Select the four statements that are true. Pattern formation begins in adult animals.
Homeotic genes establish major body axes.
Differential gene expression affects the developmental process in animals.
Cells receive molecular signals that communicate their position in relation to other cells.
Homeotic genes code for transcription factors that control the development of segment-specific body parts.
The process of pattern formation involves segmentation of the body but does not involve the development of segment-specific body parts.
Positional information controls pattern formation

the tricuspid valve is present between right atrium and right ventricle

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.