The answer is D. The life cycle of a star is dependent on its mass. Stars by forming at nebulas as protostars. When the sun exhausts hydrogen fuel at its core, the core begins to fuse helium to carbon and the core becomes hotter but smaller. The outer layers are pushed outwards and the sun becomes larger and paler. Later, the helium fuel begins to run out and the sun loses the outer expanding layers into a planetary nebula. The remaining core is a white dwarf.
Stars that are 10 times our sun's solar mass just explode to supernovas when their hydrogen fuel is exhausted.
Answer:
yellow and dominant
Explanation:
In genetics, complete dominance occurs when a gene variant referred to as 'dominant allele' completely masks the expression of another allele referred to as 'recessive allele' in heterozygous individuals (i.e., individuals carrying one copy of the dominant allele and one copy of the recessive allele) at a specific locus. In this case, the yellow (Y) allele is dominant for the trait of 'color seed' with regard to the recessive (y) allele, which is responsible for the phenotype of green seeds, and therefore heterozygous individuals (Yy) will have yellow seeds.
reclamation
mountaintop removal
underground mining
Answer: The correct answer for the blank is -
strip mining.
Strip mining can be described as a process of mining in which overlying vegetation (such as bushes and trees) is first removed, which is followed by stripping/removal of soil and undergroundlayers of rocks (using scrapers/buldozers and loaders) so as to expose and then extract the coal from the underground deposits of coal.
Thus, strip mining is the right answer for the blank.
The dead cells that act as "straws" inside the plant to pull water and nutrients from the soil is known as xylem.
Xylem is the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
Answer:
Plant Cell
Explanation:
Plants cells have cell walls and chloroplast (the reason for its green color). They are also rigid.