Other forms of life, however, are made of only a single cell, such as the many species of bacteria and protozoa. Cells, whether living on their own or as part of a multicellular organism, are usually too small to be seen without a light microscope. Cells share many common features, ...
This region is called the nucleoid. They all are single-celled microorganisms. Examples include archaea, bacteria, and cyanobacteria. The cell size ranges from 0.1 to 0.5 µm in diameter. The hereditary material can either be DNA or RNA. Prokaryotes generally reproduce by binary fission, a ...
What is the process by which an organism develops from a single cell to a mature individual? 答案 B 解析 null 本题来源 题目:What is the process by which an organism develops from a single cell to a mature individual? 来源: 生物英语三试题及答案 收藏...
A spermatozoon is the male sex cell orgametethat fertilizes the female egg orovumin organisms that reproduce sexually, including all animals and some plants. Unlike most of the cells that make up multicellular organisms, spermatozoa consist of a head and at least one flagellum or tail, which a...
Animal cells have two main organelles that plant cells do not. The centrosome is the origin of spindle fibers during animal cell division, although...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
What is a single-celled, microscopic prokaryotic organism called? What are prokaryotes and eukaryotes? Explain their classification. Differentiate between prokaryotic cells and eukaryotic cells, and gives examples of each. What is the difference between a prokaryote and eukaryote cell? What are three...
Organisms can be divided into two types, each with its own cell cycle. In prokaryotes, the organism’s genetic information consists of a single strand of DNA, known as a chromosome, which is not contained within any special structure. Bacteria are examples of prokaryotes, along with some other...
sustain to life in itself. Unicellular organisms provide the perfect practical explanation of this point. They are able to perform every action that a living organism should need to survive. If we remove even a single organelle from a cell, it won’t be able to function and would therefore ...
Thought not considered a parasitic relationship because the predator does not live in or on the body of the animal it eats, it is still a symbiotic relationship because the predator would not survive without the other organism giving up its life. The predator usually sits above its prey in ...
A fertilized egg is called a zygote. Specifically, a zygote is the single cell created when the sperm and egg combine. Once it is created, the zygote...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer...