0
What else can I help you with?
Do trout have a placenta?
No, trout do not have a placenta. They are oviparous, meaning they lay eggs rather than giving live birth, and the embryos develop outside the mother's body. Trout typically spawn in freshwater, where the female lays eggs that are fertilized by the male, and the developing fish rely on the yolk sac for nourishment until they hatch.
What is the difference between fish eggs and bird eggs?
Fish eggs, commonly known as roe, are typically small, jelly-like, and often found in clusters, depending on the species. They are usually fertilized externally in water, where the developing embryos rely on the surrounding environment for oxygen and nutrients. In contrast, bird eggs have a hard shell that provides protection and a controlled environment for the developing embryo, which is fertilized internally. Bird eggs contain yolk and albumen, providing nourishment during development, and are usually laid in nests.
Do fish lay their eggs in water?
Yes, most fish lay their eggs in water. This is because fish require water for their eggs to hatch and develop. The water helps protect the eggs and provides the necessary oxygen and nutrients for the developing embryos.
What is the significance of the gravid spot on a platy fish and how can it help in determining the reproductive status of the fish?
The gravid spot on a platy fish is a dark spot near the fish's anal fin that indicates pregnancy. It is caused by the darkening of the skin due to the developing embryos inside the female fish. By observing the size and darkness of the gravid spot, one can determine the reproductive status of the fish and whether it is pregnant or not.
How did brian use the fish scraps?
Brian used the fish scraps as a source of food and bait. After catching fish, he utilized the scraps to attract other fish, enhancing his chances of catching more. Additionally, the scraps provided nourishment, helping him sustain himself in the wilderness. Overall, the fish scraps were a crucial resource for his survival.
Do the majority of animal embryos develop inside the mother?
No, the majority of animal embryos develop outside the mother's body. This includes animals such as birds, reptiles, and most fish. Embryos that develop inside the mother's body are found in live-bearing mammals as well as some fish and sharks.
Do crocodiles eat mainly meat or fish?
Fish being meat, I would answer meat. However, rather the croc eats more fish or nonfish meat is dependent on type of croc and the location of it's area and this determines it's primary food source. Crocs are an opportunistic predator and the easiest most viable source of nourishment is what the croc will primarily eat.
What does eyed eggs mean?
"Eyed eggs" typically refers to fish eggs that have developed visible embryos, often seen in certain species like trout or salmon. This stage indicates that the eggs are fertilized and developing, with the eyes of the embryos becoming discernible. In aquaculture, the presence of eyed eggs is a positive sign, as it indicates successful breeding and development.
What do you call the baby of the fish?
Bayb fish start off as Embryos then Wrigglers, then Fry.
What facts implie that humans and fish had a common ancestor?
Both have gills when they're embryos
Which of the following facts implies that humans and fish had a common ancestor?
Embryos from both species have gills
What kind of fish do not lay eggs?
Certain species of fish, such as livebearers like guppies, mollies, and swordtails, do not lay eggs; instead, they give birth to live young. Additionally, some unique species, like the certain types of sharks and rays, also exhibit live-bearing reproductive methods. In these cases, the embryos develop inside the female's body, receiving nourishment until they are ready to be born.
