Ques: Q: What are a class of tetrapod vertebrates that produce amniotic eggs called? Read this paragraph and choose the correct option from the provided answers: Reptiles are a class of tetrapod vertebrates that produce amniotic eggs. They include crocodiles, alligators, lizards, snakes, and turtles. The reptile class is one of the largest classes of vertebrates. It consists of all amniotes except birds and mammals. Choices: - mammals - amphibians - insects - reptiles A:
Ans: reptiles

Ques: Q: What do sharks use to secrete salt to assist in osmoregulation? Read this paragraph and choose the correct option from the provided answers: animals exposed to similar levels of urea. Sharks are cartilaginous fish with a rectal gland to secrete salt and assist in osmoregulation. Choices: - ceramic gland - bladder gland - blood gland - rectal gland A:
Ans: rectal gland

Ques: Q: What can be described in terms of size, density, and distribution? Read this paragraph and choose the correct option from the provided answers: Populations can be described in terms of size, density, and distribution. Population growth may be exponential or logistic. The age-sex structure of a population affects the rate of population growth. Choices: - habitats - biomes - dimensions - populations A:
Ans: populations

Ques: Q: Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what? Read this paragraph and choose the correct option from the provided answers: DNA. By contrast though, bacterial DNA is contained in a large, circular strand. This single chromosome is located in a region of the cell called the nucleoid . The nucleoid is not an organelle, but a region within the cytoplasm. Many bacteria also have additional small rings of DNA known as plasmids . Choices: - polypeptide - amino acid - nucleic acid - the nucleoid A:
Ans:
the nucleoid