The homology of animals is based on scientists current understanding on the evolutionary history of living species.
Okay so there are two types of ERs, smooth and rough.
Rough endoplasmic reticulum contain ribosomes on the outer surface. It provides large surface area for proteinsynthesis and the synthesis of glycoproteins and also provides a pathway for the transport of materials.
Smooth ER synthesises, stores and transports lipids and carbohydrates.
Hope this helps
Follicle stimulating hormone (FSH) and Luteinizing hormone (LH) are Gonadotropins stimulated in the gonads. In females, they are located in the ovaries. They are not needed for life yet important for reproduction. Progesterone which is being secreted in corpus luteum is needed for maintenance of pregnancy thus if a female has a low FSH and LH it will affect the chance of her be pregnant.
Answer:
Yes
Explanation:
So, yes, we can end up with genes we wish to have in an organism. ... Well, the problem is that a mutation is actually either a deletion or insertion within a sequence of nucleotides, things that make up a gene. Now, in later generations of offspring, genes will mutate randomly on their own anyway.
Being original , it’s not really creative