How are lethal doses measured?

How are lethal doses measured? Lethal dose (LD50) One such population-level measure is the median lethal dose, LD50 (lethal dose, 50%). This is defined as the dose required to kill half the members of a specific animal population when entering the animal’s body by a particular route. How is LD50 determined? How is a Product’s […]

Do echinoderms have an endoskeleton?

Do echinoderms have an endoskeleton? Echinoderms have been compared to living, moving castles. Echinoderm skeletons are made up of interlocking calcium carbonate plates and spines. This skeleton is enclosed by the epidermis and is thus an endoskeleton. Do all echinoderms have an exoskeleton? False. Echinoderms do not have an exoskeleton. Explanation: Echinoderms belong to the […]

What animal represents Nigeria?

What animal represents Nigeria? the eagle What was Nigeria called before Nigeria? The former name for Nigeria was the Royal Niger Company Territories. It does not sound like a country name at all! The name Nigeria was replaced and preserved up until today. Still, it was not a name for a nation, but merely a […]

How can flatworms survive without a circulatory system?

How can flatworms survive without a circulatory system? The mouth is located in the middle of the underside of the body, which is covered with hairlike projections (cilia). There are no circulatory or respiratory systems; oxygen enters and carbon dioxide leaves the planarian’s body by diffusing through the body wall. Will Valentini Puffer eat cleaner […]

How do gag bits work?

How do gag bits work? Usage. The gag bit works on the horse’s lips and poll simultaneously. The pressure on the lips tends to make the horse raise its head, which is useful for a horse that tends to lean on the bit. Gag bits are used mainly for horses that are strong pullers or […]

When did British troops withdraw from Gallipoli?

When did British troops withdraw from Gallipoli? On 22 November, the British decided to cut their losses and evacuate Suvla and Anzac. Planning moved quickly and efficiently. The evacuation of Anzac Cove began on 15 December, with 36,000 troops withdrawn over the following five nights. When were the Anzacs evacuated from Gallipoli? 20 December 1915 […]

Is drinking soda water bad for you?

Is drinking soda water bad for you? The bottom line. No evidence suggests that carbonated or sparkling water is bad for you. It’s not that harmful to dental health, and it seems to have no effect on bone health. Interestingly, a carbonated drink may even enhance digestion by improving swallowing ability and reducing constipation. Is […]

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