Idk sorry sosysevrgryehe Enid did
Since an animal only becomes more complex, and not simpler, an ancestor to all organisms would have to be the most simple and primitive organism.
Answer:
There are 22 numbered pairs of chromosomes called autosomes. The 23rd pair of chromosomes are the sex chromosomes. They determine an individual's sex. Females have two X chromosomes, and males have an X and a Y chromosome.
This is how you know if a karyotype is male or female?
Answer:
The correct answer is lysosomes
Explanation:
Tay-Sachs disease is a genetic metabolic disorder in which a lipid called GM2 ganglioside builds in the brain which results in spasticity and death in childhood.
This disease is also known as lysosomal storage disease. Lysosomes are the major organelle that contains enzymes to breakdown molecules. In Tay-Sachs disease deficiency of hexosaminidase A occurs in lysosomes and this enzyme is needed to breakdown fats.
So due to this deficiency, it results in the accumulation of fats in the brain and spinal cord causing Tay-Sachs disease.
Kangaroo Rat Adaptations
•barely have to drink H2O because they get it from their seed diet
•have excellent hearing
•back legs enable them to jump up to 2.75 meters to escape predators
Saguaro Cactus
•barely needs H2O because they have a storage pouch that collects H2O when it rains
•has 6 centimeter long spikes to warn off
