Answer: All the above options are correct about the characteristics of Lumbriculus variegatus.
Explanation:
Lumbriculus variegatus also called the black worm belongs to the phylum Annelida and is used by biologists to illustrate:
-blood vessel pulsations,
-swimming reflex,
-peristaltic crawling behavior,
-giant nerve fiber action potentials.
These studies where carried out on them due to the characteristics they possess. These includes:
-its blood circulates in a closed circulatory system
-Freshwater worm found throughout North America and Europe
-Prefers the shallow habitats found at the edges of ponds, lakes, or marshes
-Feeds on decaying vegetation and microorganisms.
Answer:
Darwin was reluctant to publish his ideas because they went so strongly against the ideas of the day. Darwin thought that the society was not yet ready for his ideas, and he knew that there would be a lot of protest.
Explanation:
hope this helps
Answer:
Squamous cell carcinoma presents with a firm, nodular lesion topped with a crust or with a central area of ulceration.
Explanation:
The nurse is providing home care instructions to the client who just had surgery for squamous cell carcinoma. The nurse provides follow-up teaching and explains to the client to watch for squamous cell carcinoma presents with a firm, nodular lesion topped with a crust or with a central area of ulceration. As we know "Squamous cell carcinoma" most generally emerges as a firm, soft, or hyperkeratotic papule either plaque, besides with convenient ulceration.
<span>Potatoes are also known as tubers and they commonly make up most of the carbohydrate needs that the body can get from food. It is made up of parenchyma tissue that makes the plant have the ability of cloning and low metabolic activity. They are commonly used for experimentation as a “model tissue” because of these characteristics. <span>
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We see rainbows when the son is behind us and some type of water or rain is in front of us. When the sun light hits a raindrop it's refracted and is changed in direction.
(and we see them with our eyes mannnn or womannnn)
