In cats, tabby is dominant to stripeless. Cross a cat heterozygous for tabby with a homogenous tabby. Write the genotypes of both parents and make a Punnett square for the cross. What are the phenotypes & genotypes of the offspring? Will any stripeless cats occur?

On a floor there are several 1-4 mm elongated drops leading away from a body lying in a pool of blood. the the forward wall there is a sigzag pattern and on the walls to the right side there is a linear patter

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?