I’d say B. Without the sun, the earth would freeze within days. The sun’s energy gives warmth to our planet.
Answer:
Explanation:
Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis.
Answer: The ionic bond is when one atom transfers an electron to another atom
Explanation:
Ionic bond is formed between oppositely charged substances - a positively charged substance, and a negatively charged substance.
Usually, an atom donates its electron (become positively charged) to another atom to complete its outermost shell (becoming negatively charged).
Thus, the formation of transfer of electrons creates an IONIC BOND
No abiotic factors cannot be composed of cells as cell is the smallest unit in living organisms but abiotic factors compose of non living things. so this is not true
Mitotic spindle forms and the nuclear envelope fragments at the prophase stage of mitosis.
<h3>What are the stages of mitosis?</h3>
Mitosis has 4 main stages that are more or less in a continuous spectrum. These stages are:
- Prophase
- Metaphase
- Anaphase
- Telophase
The prophase stage is characterized by the dissolution of the nuclear envelope, the condensation of chromatin materials, and the onset of spindle formation.
The metaphase stage is characterized by the alignment of chromosomes at the equator and the engagement of each chromosome by spindle fibers at the centromere.
The separation of sister chromatids characterizes the anaphase through the shortening of the spindle fibers from the opposite ends of the cell.
The telophase is characterized by the completion of the migration of sister chromatids to the poles.
Thus, the mitotic spindle forms and the nuclear envelope fragments at the prophase stage of mitosis.
More on mitosis can be found here: brainly.com/question/26678449
#SPJ1
