Why are animal gametes haploid? a) Gametes have two copies of each chromosome.
b) Gametes are developing embryos that develop into haploid adults.
c) Haploid egg and sperm cells combine to create a diploid individual.
d) Gametes have one copy of each chromosome to create a haploid individual.

I'm so confused! If someone could help, it would mean a lot. Thank you and PLEASE no links!

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates