To collect impressions found in dust, scientists use a device that: a- vacuums the dust up evenly onto a clear, sticky film. b- uses a negative charge to create an image on a plastic-coated metal sheet. c- uses extremely low-density, quick- hardening foam to fill the spaces. d- impressions can’t be collected from dust. i picked biology because there is no forensic science

The correct answer is answer choice A and the machine being described is an electrostatic dust print lifter

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.