Answer:
Telomeres are the DNA sequences that are present at the end of chromosomes. The telomeres gets shorten after the DNA replication and are responsible for the ageing process.
The enzyme telomerase is responsible for the replication of telomeres. The telomerase enzyme lengthens the telomeres. This compensate for the the shortening of the chromosomes during each round of DNA replication of the humans.
1. respiratory system
sorry i’m not sure about the second one !
Answer:
C, D, E, F.
Explanation:
Fungi are belongs to multicellular eukaryotic organisms. Fungi are heterotrophs in nature they can not make their own food, and they are playing very important role in nutrient cycle in an ecosystem. They can reproduce from both method sexually and asexually. They are also symbiotic associated with plants and bacteria.
Some statements describe about the body structures or functions of fungi are:
C) Some fungi secrete digestive enzymes into the environment and then absorb the digested nutrients.
D) Mycelia are made up of small-diameter hyphae that form an interwoven mass, providing more surface area for nutrient absorption.
E) Some fungi can grow as either filamentous or single-celled forms.
F) All fungi are heterotrophs; some species live as decomposers and others as symbionts.