Circulation. Arthropods have an open circulatory system. A well-developed heart pumps blood through arteries that branch and enter the tissues. Blood leaves the blood vessels and moves through sinuses, or cavities.The blood then collects in a large sinus surronding the heart, then it re-enters the heart and is pumped throughout the body.irculation. Arthropods have an open circulatory system. A well-developed heart pumps blood through arteries that branch and enter the tissues. Blood leaves the blood vessels and moves through sinuses, or cavities.
Here is a recipe I like to make.. Meatloaf Supreme 1 envelope dry onion soup mix 2 lbs ground beef 2 eggs 1/4 cup water 2/3 cup ketchup 3/4 cup dry bread crumbs Preheat oven to 350 F. In a large bowl, combine all ingredients, mix well. In a large shallow baking dish, shape into a loaf. Bake 1 hour..ere is a recipe I like to make.. Meatloaf Supreme 1 envelope dry onion soup mix 2 lbs ground beef 2 eggs 1/4 cup water 2/3 cup ketchup 3/4 cup dry bread crumbs Preheat oven to 350 F. In a large bowl, combine all ingredients, mix well. In a large shallow baking dish, shape into a loaf. Bake 1 hour..
If you cook a 2 pound meatloaf at 350 degrees, it should take 1 hour and 20 to 30 minutes depending on the oven variations in temperature.The more fatty the hamburger, and the more liquids used in the recipe, the faster the meat will cook. Source(s): hushnowjustplayit Â· 8 years ago.eport Abuse. For a 2 pound meatloaf....I'd set the oven to 350 degrees and place the meatloaf on a heavy baking pan. (like the bottom of the broiler pan). It's heavy so it browns well. Spray or rub with olive oil..and place the meatloaf there sprinkle with flour all over and pat it on.