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An archegonium (pl.: archegonia), from the Ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium. The archegonium has a long neck canal or ...
Some fish and amphibian eggs have thick, leathery coats, especially if they must withstand physical force or desiccation. These types of eggs can also be very small and fragile. [citation needed] While many reptiles lay eggs with flexible, calcified eggshells, there are some that lay hard eggs. Eggs laid by snakes generally have leathery shells ...
The host plants have evolved stipules, small outgrowths at the base of each leaf, that mimic mature Heliconius eggs near the point of hatching. The butterflies avoid laying eggs near existing ones, reducing intraspecific competition between caterpillars, which are also cannibalistic , so those that lay on vacant leaves provide their offspring ...
First things first: if a carton of eggs has a United States Department of Agriculture (USDA) grade shield, it means that "the plant that processed the eggs is following USDA's sanitation, good ...
When it comes to eating for heart health, it’s not always as simple as some foods are “bad” while others are “good”. These “bad” fats are worth a second look.
The chalaza (/ k ə ˈ l eɪ z ə /; from Ancient Greek χάλαζα (khálaza) 'hailstone'; pl.: chalazas or chalazae / k ə ˈ l eɪ z i /) is a structure inside bird eggs and plant ovules. It attaches or suspends the yolk or nucellus within the larger structure.
On rushed mornings, I blended my favorite plant-based protein powder (20 grams of protein per 2 scoops) into a smoothie with a tablespoon of peanut or almond butter and half a banana.
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