The first land plants appeared around 470 million years ago, during the Ordovician period, when life was diversifying rapidly. They were non-vascular plants, like mosses and liverworts, that didn't have deep roots
The prostate, seminal glands, and bulbo-urethral glands produce Seminal fluid, the liquid medium in which sperm leaves the body.
<h3>What is
Seminal fluid?</h3>
- The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which combines with sperm to form semen when a male is sexually stimulated.
- Fluid from seminal cysts is thick. It contains fructose, citric acid, proteins, potassium, inorganic phosphorus, and prostaglandins. When the fluid incorporates with sperm in the ejaculatory duct, the fructose evolves the direct source of energy for the sperm outside a man's body.
- semen, also named seminal fluid, is fluid that is ejected from the male reproductive tract and includes sperm cells, which are competent for fertilizing the female's eggs. Semen also prevents liquids that connect to form seminal plasma, which helps keep the sperm cells possible.
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Triggerfish and hawks fish. They have depressed body shape and their tail is diphycercal. Their tail shape gives them manoeuvrability and their body shape allows them to fit into small places on the reefs which makes them good for adaptations.
Shark fish; they have fusiform body shape and heterocercal tail shape and their good adaptation help them to be top predators and need speed to hunt down their animal.
Stingray; they have depressed body shape and diphycercal tail shape. Their good adaptation helps them to timid fish who feed and hide along the bottom.
An organism that makes its own food.
Example- plants.
The first organism in a food chain is always a plant.
