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Kerry
BiologyBiology
Classify the following as either a specific or a nonspecific defense of the body's immune system. • skin

• macrophages

• bacteria • mucous

• fever

• B cells • T cells

• antibodies
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Liam Walls
BiologyBiology
Which of the following is an example of observational scientific investigation

mixing two reactants together in a small beaker

drying a solid produced by placing it in an oven

noting the color of a solution when heated < - - - i think maybe this one

placing test tubes in ice water for 15 minutes
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Ibrahim Page
BiologyBiology
Which color is a Chloroplast in a rose
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Thaddeus Bray
BiologyBiology
Personal alliances in the work place can be damaged by what
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Valentin Foster
BiologyBiology
Carbon dioxide is stored in the bicarbonate ion with the reaction occurring both in the red blood cell and in the blood. the reaction occurs in the blood however without:
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Guest
BiologyBiology
Why is injury to large areas of the skin dangerous?
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Lesly Butler
BiologyBiology
Which of the following correctly describes seafloor spreading?

A. New oceanic crust is formed at midocean ridges, pushed away from the ridge, and destroyed at deep-sea trenches.

B. New oceanic crust is formed at seamounts and spreads outward in all directions.

C. New oceanic crust is formed at deep-sea trenches, pushed away from the trench, and destroyed at midocean ridges.

D. New oceanic crust is formed in the middle of tectonic plates and then spreads outward in bands.
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Xiomara Mullins
BiologyBiology
How to arrange from smallest to biggest organ, organism, gene, nucleus, cells, tissue, chromosome, system?
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Pop Tart
BiologyBiology
Tracheids and vessels together make up

A. xylem.

B. phloem.

C. chloroplasts.

D. a plant cell.
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Taylor Chung
BiologyBiology
Which statement is true for single-celled organisms?

A.

They are often harmless.

B.

They always cause disease.

C.

They only live inside humans.

D.

They reproduce in a complicated process.
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Lady
BiologyBiology
If there are 20 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis?
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Natasha Klein
BiologyBiology
Why is the mitochondria called the powerhouse of the cell
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Leslie Page
BiologyBiology
In Mendel's cross-breeding experiments, the plants in each individual cross differed from each other in how many traits?

a.) 1

b.) 2

c.) 3

d.) 4
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Nelson Ball
BiologyBiology
A plant nutrients needed in small qualities is called
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Isla Hood
BiologyBiology
This is a chemical substance made by glands in the endocrine system that travel through the bloodstream and affects cells and tissues throughout the body
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