The tree provides chemicals by using sunlight as a food.
Answer is B
Answer:
I think that the people that should have access to the information is your closest friends, family and your spouse
Answer:
The first astronauts to land on the moon observed the existence of thin layers of dust hovering above the lunar surface. Like there is no wind on the moon, it was understood that this phenomenon was linked to the photoelectric effect caused by sunlight: electrons are extracted from the
grain of dust from lunar soil when receiving energy electromagnetic radiation from the sun and, thus the grains become positively
loaded.
The same process also starts electrons of the lunar surface, contributing to the positive charge on the illuminated side of the Thus, the electric field generated by the surface of the moon makes the charged grains of sand suffer electrical force upward by balancing your weight
Explanation:
Dust can be formed by small particles, smaller than 500 micrometers, but the nature can be so different from one place to another.
Answer:A
Explanation:
Yes yes because it is required for photosynthesis to take place. ... he reactants that go into photosynthesis come out of respiration. Plants can survive on their own, because they make their own food. Animals on the other hand, cant survive without any food source
Answer:
Here are the answers:
a. 4 Cell determination as an issue in the *rest is missing*
b. 4 They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned.
c. 4 I and III only
Explanation:
The passage demonstrates the importance of two factors in the development of an embryo: cleavage planes of division of embryonic cells and cell differentiation.
Cleavage Planes:
Cleavage basically refers to the division of the zygote into a large number of cells called blastomeres. Cleavage planes are geometrical lines or orientations along which cleavage takes place. Since, all embryonic cells are the precursors of some type of body cells, the cleavage planes determine if the cells are adequate for growth and development.
Cell Differentiation:
Cell differentiation is the transition of an undifferentiated cell into a specialized one. For example, stem cells are undifferentiated cells that develop into progenitor cells that mature into a specific cell lineage. For an embryo to regenerate, the presence of adequate embryonic stem cells is crucial. Embryonic stem cells are present in abundance before the gastrulation phase of embryonic development, after which they rapidly start differentiating.
