Here are the answers to your questions:
Question 1
A) Giant kelp, which can grow up to 60 meters, are known as:
Answer: protists.
Question 2
A) You receive a sample slide of an organism. While observing it under a microscope, you notice that the organism is single-celled and green in color. There are multiple individual organisms on the slide. Based on this initial information, you guess that it is either a bacterium or a protist. Which trait is least likely to help you identify the correct group of this organism?
Answer: the absence of cell structure membranes.
Question 3
A) Vascular plants can be divided into groups based on:
Answer: the presence or absence of flowers.
Question 4
A) Your teacher gives you a multicellular organism. It is small, green, and has chloroplasts. All of its cells function in the same way. Which kind of organism is it most likely to be?
Answer: nonvascular plant.
Feel free to ask if you have more questions!