I. Fruits aid in the dispersal of seeds by wind or by animals that carry or eat the fruits.
F. Seeds protect and nourish plant embryos, and fruits protect the seeds.
C. In many angiosperms, the male gametophyte contained in a pollen grain can be transported many miles away by wind or animal pollinators.
B. Seeds enable plant embryos to be dispersed long distances from the parent plant via wind or animals.
A. Flowers attract animal pollinators carrying pollen from other plants of the same species.
D. Floral parts of the saprophyte protect the reduced female gametophyte from drying out and from UV radiation.
Answer:
20
Explanation:
the body needs 20 amino acids to grow and function properly but only 9 are essential for the body
Answer:
The major structural difference between chromatin and chromosomes is that the latter are more organized and condensed.
Explanation:
Chromatin is genetic material packaged into a complex by special proteins (histones). That complex is in the form of uncoiled structures, so chromatin fibers are long and thin. Chromatin structure is permissive to DNA replication, transcription and recombination events.
On the other hand, chromosomes are highly condensed structures of genetic material that are formed just before the cell division.
Answer:
When a new infertile hybrid appears in an environment, it feels like an anomaly in the environment and there are no possible measures to classify it as a new specie or a member of a specie just by a physical examination. When 5110 subject appears in that environment it is possible to classify it as a piece of a terminated branch of only one member as an anomaly of the closely related species.
His fate is solely relied on better care of himself for a good life span cause there are no other measures to save him. Futhermore added he is also not a proper member of a specie so no mating oppurtunities at all.
Permafrost layer in Tundra is the layer of earth beneath the topsoil that remains frozen during the year and is usually only a few feet beneath the surface. It prevents trees from growing in the tundra because trees need to have deeper roots plus they cannot grow in the frozen ground.
Biome plants are : shrubs, sedges, mosses, lichens, grasses, and some flowering or herbaceous plants.
