BIOLOGY MIDDLE SCHOOL

While surveying his apple trees, a farmer discovers a particular tree that produces apples with perfect size, color, and flavor. To reproduce this plant, he removes a twig from the s tree and attaches it to the stem and root system of a growing apple tree in a process called grafting. The tree will continue to grow and will later produce apples.Why does he use this method instead of planting an apple seed from the tree with ideal apples?

Answers

Answer 1
Answer: It is because he knew, that was a good breed of plant (High variety)....so he did not want to waste that gene's capacity by hybridization with some other factors....

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Sally and Maria hypothesized that earthworms lived only in dark, damp places. They measured a one-meter square in a shady spot near a stream. They dug through the soil and collected earthworms. They collected 43 worms. They repeated the experiment in several locations, sunny and dry included. They found the most worms in the shady, damp plot near the stream. Several other groups of science students carried out the same experiment and got similar results. This is an example of A) bias. B) repetition. C) replication. D) validity.
Lymphocytes are specialized ________________cells.
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HELP MEE!The following table describes five molecules that belong to the same class.Molecule FunctionHemoglobin transports oxygen in the bloodAmylase an enzyme that breaks down starchImmunoglobulin an antibody produced in response to an invading particleCollagen the main structural component of connective tissuesAquaporin transports water in and out of the cellWhich class of biomolecule do the molecules in the table belong to?A. carbohydratesB. lipidsC. proteinsD. nucleic acids

What organelle reforms around the chromatids at opposite ends of the cell ?A. Centriole
B. Vacuole
C. Chloroplast
D. Nuclues

Answers

the answer should be nucleus

Answer:

A. Centriole.

Explanation:

The centriole is the thing at each side of a cell that "pulls" chromosomes apart to the other side of the cell. Here is a photo:

Thank you!

Suppose that in a lab you could remove all the oxygen from the terrarium. What would happen to the plants? Why?

Answers

They would still thrive. Plants only require sunlight and water to produce oxygen and glucose. The plant would just increase the concentration of oxygen in the terrarium over time.

a white blood cell ingests then digests a number of bacteria which cell organelles were directly responsible for the digestion of bacteria

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Bacteria of white cell

Is rock being ground into powder by moving glacier a physical or chemical change?

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I believe the it’s a Physical change
most likely physical

Levels of organization small to large: cell , organelle, organism, atom, organ system, tissue, molecule, and organ

Answers

The levels of organization from small to large is the atom, molecule, organelles, cells, tissues, organs, organ system, and the organism.

Levels of organization

• All the living and non-living thing is made up of one or more specific components called the elements, whose smallest unit is the atom.

• The atoms combine to produce the molecules. These are the building blocks to all the compositions in the body of a human being.

• All the living compositions are formed of cells, which are formed of many distinct molecules.

• All the cells are formed of a cell membrane that encircles a jelly-like cellular fluid comprising tiny organ like compositions known as organelles.

• The cells within the human body are aligned into tissues, which is a group of cells that work together to do a particular activity.

• The two or more different types of tissues give rise to an organ.

• The group of organs is known as the organ system.

• The most complex level of organization, which is formed of several organ systems that function in harmony is the organism.

Thus, the levels of organization from small to large is atom, molecule, organelles, cells, tissues, organs, organ system, and the organism.

To know more about:

brainly.com/question/14251538
atom, molecule, organelle, cell, tissue, organ, organ system, organism

Physical characteristics include 3 pairs of legs and 3 body sections *arachnids
insects
annelids
echinoderms

Answers

Answer:

The three main features of an arthropod's body are the _ or cuticle made of chitin; a series of paired, jointed _ , and segmented _ parts. A long organic molecule made of sugars, arranged in layers. Chitin.

Explanation:

Answer:

Which of the following equations are balanced correctly?

2Ag2O → 4Ag + O2

Zn + HCl → ZnCl2 + H2

Cu + H2O → CuO + H2

2C4H10 + 13O2 → 8CO2 + 10H2O

Explanation:
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