A gamete has one copy of each chromosome, it is haploid.
A gamete is a haploid cell produced during the process of meiosis, it fuses with another haploid cell during fertilization in sexual reproduction. May be therefore described as mature haploid (single copy of chromosome) male or female germ cell that unites with another haploid cell and forms a zygote.
I believe the answer is Oxygen and Carbon Dioxide. Hope this helps:)
21) to attract other cells that can remove dead cells
All of these four options are true for an enzyme. because an enzyme has all of these properties.
The first trophic level
they would want to eat the primary producers, which are located at the first trophic level. due to the 10% rule only 10% of the energy from the previous trophic level is passed on.