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skelet666 [1.2K]
3 years ago
5

Which group below are all strategies male birds employ to avoid sperm competition?

Biology
1 answer:
ehidna [41]3 years ago
8 0
<span>Male adaptations to sperm competition include relatively large testes, large sperm stores and long spermatozoa, mate guarding and frequent pair copulations. Females show no obvious morphological adaptations to sperm competition but, by controlling whether copulations are successful, they probably determine its frequency and extent. Despite this, the evolutionary benefits females acquire from extra-pair fertilizations are poorly understood.</span>
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Why do organisms die if they do not have enough water?​
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Answer:

Organisms need water for the following activities: (1) All cellular processes occur due to water. (2) Transportation of substances in our body takes place by dissolving in water. (3) Terrestrial animals require fresh water for transportation of minerals and for getting rid of waste from their body.

Explanation:

Without water they cant do any of this.

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3 years ago
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19. Which of the following is the best strategy to control wheat rust?
valentinak56 [21]

Answer:

B. Fungicides to treat affected crops and planting rust-resistant varieties

Explanation:

Leaf rust is a disease caused by the fungus <em>Puccinia triticina</em> which affects leaves, stems and grains in wheat and related cereals (i.e., barley and rye). This disease is known to affect crops in moist conditions. Leaf rust disease is spread through fungi spores from infected wheat plants to healthy plants. Recently, leaf rust-resistant varieties have been developed by crop improvement programs aimed at introducing leaf rust-resistant (lr) genes involved in resistance against this important crop disease. Moreover, there are different types of fungicides (e.g., Prothioconazole and Tebuconazole) used for chemical control of this disease.

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3 years ago
Which of the following statements are not true of benito Mussolini?
prohojiy [21]

Answer:

Explanation:

If you are having a question be sure to give options next time, just answered this question because it was there at khanacademy.org, if you want it with the options.... Well then, it's:-

Option 1: Because of his "Pact of Steel" with Hitler, he entered Italy into WWII with the Axis as soon as Britain and France declared war on Germany.

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4 0
3 years ago
Which evolutionary mechansim caused the increased
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Natural selection is right
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People who suffer renal failure are treated with a medical process called dialysis. A dialysis machine carries out the role of t
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The dialysis machine acts out as kidneys in the body, when it is attached, blood is transfused into the machine and the machine filters the blood. As this happens, the blood is then returned to body clean and free from toxins.
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