Which germ layer develops into bones, kidneys, bladder, ovaries or testes, blood, and muscles, including the heart?
a. mesoderm
b. ectoderm
c. blastula layer
d. endoderm

Mesoderm is the type of germ layer develops into bones, kidneys, bladder, ovaries or testes, blood, and muscles, including the heart.

Option A

Explanation:

The end of the gastrulation phase of living organism is marked by the formation of three germ layers namely ectoderm layer, mesoderm layer and entoderm layer.

Each of the layers which are mentioned gets converted into different structure. The Mesoderm gets converted to connective tissue, ligament and smooth muscles. The heart dividers by blood, lymph vessels and cells.

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

c

explanation: