Amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring, and animals that reproduce sexually produce sex cells, or gametes. Given these facts, a mutation in the _ of a parent can cause a new trait to appear in the parent 's offspring among the following options: - eggs - courtship - mitochondria - alleles - pollen - gametes - ATP - hormones
gametes
------
Invertebrates are animals that lack a vertebral column, or backbone, and all of the vertebral bodies act as a support column to hold up the spine. Given these facts, invertebrates are animals that lack a what among the following options: - Chlorophyll - Epidermis - pair of legs - small bones - cartilage - an organism's body - support column - epidermal
support column
------
Melting means changing from a solid into a liquid by adding heat energy, and when a substance melts, it changes phase from a solid to a liquid by the application of heat. Given these facts, what can be done to a solid by adding heat energy among the following options: - massive damage - phasing the bubbles - It expands - cooling the center - Evaporation - changing the phase - removing the air - Water expanding
changing the phase
------
Wind is used for producing electricity, and thus electricity is used to produce heat. Given these facts, what can be used to produce heat among the following options: - wind - Engine - coal - Ice cubes - Sun - energy - time - space
wind
------