Selective breeding has been used for thousands

1 answer:

5 0

(4) produce new varieties of domestic animals

Although (1) (2) and (3) are modern-day uses of selective breeding, they are relatively recent developments in human history, only used for the past century or less. (4) is correct because the selective breeding of domestic animals to produce new varieties of dogs, cats, etc. has been used for thousands of years, dating back to the ancient Chinese and Egyptian dynasties.

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this step of intergrated pest management involves the use of pesticides to control pests and their damage

goblinko [34]

The "control" step of intergrated pest management involves the use of pesticides to control pests and their damage.

<u>Explanation:</u>

IPM have four steps, which is a sequence of pest control method. When the thresholds for surveillance, detection and intervention suggest the need for pest control and prevention measures are no longer efficient or usable, then IPM (intergrated pest management) initiatives determine the appropriate management system for both efficacy and risk.

Efficient, less dangerous pest controls, involving highly concentrated chemicals like pheromones to hinder pest mating or mechanical control like trapping or weeding, are selected first. If more analysis, detection and intervention thresholds suggest that less dangerous controls do not operate, then alternative pest control approaches, like targeted pesticide spraying, will be implemented.

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The units that determine the inheritance of biological characteristics are

sammy [17]

Answer:

The correct answer is genes.

Explanation:

The genes are the fundamental units of inheritance. The genes are passed to the offspring from the parents and comprise the information required to specify traits. The genes are aligned one after another on the compositions known as chromosomes. A chromosome comprises a lengthened and single molecule of DNA, of which only a part equivalent to a single gene. In humans, there are about 20000 genes aligned on their chromosomes.

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Which type of carbohydrate is this?

mariarad [96]

Answer:

Explanation:

monosaccharide is derived from mono, meaning "one", and saccharide, meaning "sugar". The common monosaccharides are glucose, fructose, and galactose. Each simple sugar has a cyclic structure and is composed of carbon, hydrogen and oxygen in ratios of 1:2:1 respectively. Although each sugar mainly exists as a cyclic compound, it is important to note that they are all in equilibrium to a small extent with their linear forms.

While galactose and glucose are composed of six-membered rings, fructose has only five carbon atoms bonded to each other in ring form.

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Answer:

I'll be your friend, and 2-2 is inevitably 0.

Explanation:

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