Arthropods especially insects affect human life by which of

Arthropods especially insects affect human life by which of the following ways? Pollination of crops and fruits. Competition for food of every kind. Crop damage before and after harvest. Production and spreading of many plant and human diseases, All of the above. Monocots differ from dicots in that monocots have Leaf veins that are parallel. Flower parts in 4s and 5s. Vascular bundles in a distinct ring. Pollen with three apertures. Two cotyledons in the seed. If a researcher removes a single-cell from an eight-celled human pre-embryo developing in a laboratory dish and tests it for a disease-causing gene. If the abnormal gene is not detected, and the remaining seven-celled pre-embryo is implanted into a woman, where it completes development into an individual free of the inherited disease. What do you term this development? Indeterminate cleavage. Determinate cleavage Radial cleavage. Spiral cleavage. Incomplete cleavage. Malpighian tubules are excretory organs found in Earthworms. Flatworms. Insects. Roundworms. Cnidarians. Which of the following structure is found in angiosperms but not in gymnopsperms? fruits spores. Seeds. Seed coats. A tube that grows from the pollen to deliver sperm.

Solution

11. Insects perform all the above functions.

12. Monocots have leaf veins which are normally parallel.

14. malpighian tubules are the excretory oragans of the insects.

15. angiosperms have fruits which are absent in gymnosperms.