Fossils give information about the time period in which organisms lived in the past.
Answer:
Gneiss
Explanation:
Quartzite and Hornfels are both non-foliated metamorphic rocks. Slate is foliated but is fine-grained, which leaves us with Gneiss, which is a foliated, coarse-grained metamorphic rock
Answer:
To study these moths, Dr. Kettlewell placed light and dark moths on the trunks of trees where he could observe them. The same birds would find the dark moth twice as often if the bark on the tree was light. This supported the idea that dark moths had a survival advantage in a dark forest.
Based on research, microbes have been recently associated with the following four diseases that were once considered noninfectious:
- gastric ulcers
- multiple sclerosis
- cancer
- diabetes
<h3>What are microbes?</h3>
Microbes refers to microscopic organisms, that is organisms which can not be seen with the ordinary eye but with the aid of a microscope.
Microbes consists of the following organisms:
- bacteria
- fungi
- protozoa
- viruses
Some microbes are not harmful while many other microbes are harmful and are known to be the causative organisms for many diseases.
The diseases that are caused by microbes can be passed from one person to another and are known as infectious diseases.
However, recent research have linked microbes to some diseases such as gastric ulcer, multiple sclerosis, cancer, and diabetes which were once considered non-infectious.
Example are given below;
- gastric ulcer caused by <em>Helicobacter pylori</em>
- Multiple sclerosis caused by Epstein-Barr virus
- Cancer caused by human papilloma viruses, hepatitis B and C viruses
- Diabetes caused by E. coli and Candida spp.
In conclusion, microbes cause infectious diseases.
Learn more about microbes at: brainly.com/question/8695285
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Note that the complete question is given below as:
Based on research, microbes have been recently associated with which four of the following diseases that were once considered noninfectious?
muscular dystrophy
multiple scleriosis
diabetes
cystic fibrosis
gastric ulcer
cancer
gastric ulcers
multiple scleriosuis
cancer
diabetes
Veins<span> have low </span>blood<span> pressure compared to </span>arteries<span> and need the </span>help<span> of </span>skeletal muscles<span> to bring </span>blood back to the heart<span>. Most </span>veins<span> have one-way valves called venous valves to </span>prevent<span> backflow caused </span>by<span> gravity. They also have a thick collagen outer layer, which helps maintain </span>blood<span> pressure and </span>stop blood<span> pooling. So your answer would most likely be A</span><span />
