Answer:
An atom is known to become an Ion when it undergoes a chemical reaction. This is become chemical reactions occur as a result of loss or gain of electrons.
When this occurs the atom is said to become an ion.
When am atom gains electrons it becomes negatively charged and is referred to as an anion while when it loses electrons it becomes positively charged and is referred to as a cation.
Answer:
D. Using the new fertilizer produces bigger tomatoes than using the
old fertilizer.
Explanation:
This hypothesis is best to test for the effect of the new pesticide on the tomato plant.
A pesticide is a chemical formulation used to kill pests of farm crops.
Pests prevent the healthy and proper growth of plants thereby resulting in poor yield on the farm.
For the farmer to ascertain the effect of the pesticide on his farm crop, he must compare the yield of his produce. Some tomatoes might grow well but would not bear good fruit. If the farmer focuses on the fruit produced, he would have derived a good hypothesis in his experiment.
I hope this helps :)
b. the axis has a slight tilt
Answer:
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
Explanation:
Answer:
a) interphase(G2)
Explanation:
<em>The nucleus would contain 6 pg of DNA at the interphase (G2) phase of the cell cycle.</em>
The cell cycle is characterized by tow main phases, namely;
- The interphase
- The m phase
The interphase is divided into G0, G1, S, and G2 phase respectively while the m phase is divided into prophase, metaphase, anaphase and telophase respectively.
At the S phase of the interphase specifically, DNA is replicated and the amount of DNA in the cell becomes double.
<u>Hence, a cell whose DNA amount ranges from 3 - 6 pg will have exactly 6 pg after the S phase of the interphase, which is G2 phase.</u>
The correct option id a.
