Answer:
<u>Option-</u> "If a flock’s beak type made it easier to pick up the available food, the flock grew."
Explanation:
- We can simplify the whole answer by having argument about the structure or alignment of the birds in a given way which provides more food sources or options for the 1st generation and then the third generation can be found in a more scattered form inside the herd, as there are no more food requirement as much was before.
Answer: Option D. "Anther"
Explanation:
The stamen is defined as the male reproductive part of flowers that produces pollen in a flower and collective form of stamens is called the androecium.
Their are two parts of stamen, Filament and Anther.
Filament is the stalk of a stamen which supports anther whereas anther are two-lobed responsible for producing pollen.
Hence, the correct option is D, Anther.
Rivers and streams erode the land as they move from higher elevations to the sea. Eroded materials can be carried in a river as dissolved load, suspended load, or bed load. A river will deeply erode the land when it is far from its base level, the elevation where it enters standing water like the ocean.
<span>b. humans</span>
Sponges and invertebrates dominated the seas during the Paleozoic Era. This era is said to have ran about 542 million to 251 million years ago. This was the time when the supercontinent broke and formed new continents. This era is most famous for the "Cambrian Explosion" where life exploded on Earth that started the evolution of arthropods and chordates. <span>
Life mostly flourished in the seas during the Paleozoic Era. This was proven by invertebrate-fossil records found. The most famous was the armored arthropod known as the trilobite. This organism scuttled around the seafloor about 270 million years ago.</span>
