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2 years ago

What machines and tools are being used for farming nowadays?

Biology

1 answer:

Anton [14]2 years ago

8 0

Answer:

Tools and machines that are used for farming are Tractors, rake, A machine that they used to pick up corn.

Explanation:

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Karen is looking at a slide of an onion root tip under a microscope. She noticed that not all the cells look the same. Which of

IrinaVladis [17]

Answer:

A. the root is continuing to grow so the cells are going through mitosis

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3 years ago

I need help I need to identify these images (I'm doing a chromosome worksheet) can someone please help me identifying them?

adoni [48]

1. molecul of DNA 2. dna packed (coild) around histon h1 3.second stage of dna packing -solenoid thread 4. third stage of packing-chromosomal thread 5.chromosome-chromosomal threads are packed inside

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3 years ago

Describe how so much variety has been created in a single species of animal using artificial selection.

stepan [7]

Answer:

Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations. Artificial selection works the same way as natural selection, except that with natural selection it is nature, not human interference, that makes these decisions.

Explanation:

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3 years ago

The trait for medium-sized leaves in iris is determined by the genetic condition PP'. Plants with large leaves are PP, whereas p

loris [4]

Answer:

See the answer below

Explanation:

Medium size leaves genotype = PP'

Large leaves genotype = PP

Small leaves genotype = P'P'

Red flower genotype = RR

Pink flower genotype = RR'

White flower genotype = R'R'

Two plants each with medium-sized leaves (PP') and pink flowers (RR') were crossed.

PP'RR' x PP'RR' (let PP' = Aa and RR' = Bb)

Progeny and expected phenotypes

1 PPRR - large leaves, red flower = 1/16 x 640 = 40 seedlings

2 PPRR' - large leaves, pink flower = 2/16 x 640 = 80 seedlings

2 PP'RR - medium leaves, red flower = 2/16 x 640 = 80 seedlings

4 PP'RR' - medium leaves, pink flower = 4/16 x 640 = 160 seedlings

1 PPR'R' - large leaves, white flower = 1/16 x 640 = 40 seedlings

2 PP'R'R' - medium leaves, white flower = 2/16 x 640 = 80 seedlings

1 P'P'RR - small leaves, red flower = 1/16 x 640 = 40 seedlings

2 P'P'RR' - small leaves, pink flower = 2/16 x 640 = 80 seedlings

1 P'P'R'R' = small leaves, white flower = 1/16 x 640 = 40 seedlings

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3 years ago

What is the exception of chromosome movements

LUCKY_DIMON [66]

Answer :A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation.

Explanation:

3 0

3 years ago

What machines and tools are being used for farming nowadays?​

What machines and tools are being used for farming nowadays?