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Artist 52 [7]
3 years ago
8

Jawless fish were Earth's first

Biology
1 answer:
Scrat [10]3 years ago
3 0

Answer:

jawless fish were earth 's first arthropods

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Plants use cellulose to build strong structures. what is cellulose made of? -proteins linked together -DNA molecules -lipids bon
Anna11 [10]
Cellulose is a straight chain polysaccharide which is made up of glucose molecules that are joined together by beta 1,4 glycosidic bonds. Cellulose is the principal structural material of plants and plants use it to build strong structures. For instances, the rigid cell wall of plant cells is made up of cellulose.
Thus, the correct option is D.
3 0
3 years ago
What was the main factor driving the migration of people?
vampirchik [111]
Multiple things cause the migration of people.

Economic issues arise:
People run out of jobs and opportunities
(BIGGEST REASON)

Cultural reasons:
Forced intentional migration had occurred in the past on accounts of slavery and political instability

Safety:
More popular reason now is because of war or fights with other countries, the people want to keep their family safe so they move them or move with them

Hope this helped
6 0
3 years ago
anne was just diagnosed with cystic fibrosis, a disease that is carried in an autosomal recessive pattern. neither of anne's par
Gnom [1K]

A parent with one non-functional copy of the gene is a carrier. Carriers for Cystic fibrosis will have no symptoms but they can pass the non-functioning gene on to their children.

<h3>What is cystic fibrosis?</h3>

Cystic fibrosis is a genetic disease and individual must inherit two non-functioning CF genes that is one from each parent to have CF. Both parents must have at least one copy of the defective gene and people who have only one copy of the defective CF gene are called carriers but they do not have the disease. Many couples who have a child with CF have no family history of cystic fibrosis

Cystic fibrosis affects cells that produce mucus, sweat, and digestive juices and also it causes these fluids to become thick and sticky. They block tubes, ducts, and passageways.

Symptoms include cough, repeated lung infections, inability to gain weight, and fatty stools. Treatments for this disease may ease symptoms and reduce complications.

To know more about cystic fibrosis, refer

brainly.com/question/25129734

#SPJ4

3 0
1 year ago
As heat and pressure increase, ductile deformation _____.
ValentinkaMS [17]
As heat and pressure increase, ductile deformation becomes more likely
7 0
3 years ago
Read 2 more answers
True or false the water table is the lower surface of a aquifer
8090 [49]

Answer:

True

Explanation:

Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology.

hope it helps you

6 0
2 years ago
Read 2 more answers
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