Answer:
Ionic bonds form when atoms gain or lose electrons, because electrons are negatively charged an atom that loses one or more electrons will become positively charged. Ionic bonding is the attraction between negatively and positively charged electrons. Hope this helps :)
Diatoms contain chloroplasts that have four membranes. These four membranes are evidence of secondary endosymbiosis (Option c).
<h3>What is secondary endosymbiosis?</h3>
Secondary endosymbiosis is a hypothesis used to explain why diatom chloroplasts have four membranes.
According to this hypothesis, diatoms received different genes from distinct photosynthetic and non-photosynthetic ancestors.
The acquisition of genes of different ancestors led to diatoms having chloroplasts with four membranes.
Learn more about the endosymbiosis hypothesis here:
brainly.com/question/2957447
Bile neutralises the stomach acid.
The options attached to this question are given below:
A. contains mostly needle-leaved evergreen trees.
B. is home to herds of giraffes, zebras, and wildebeests.
C. receives less than 25 cm of precipitation per year.
D. has low-growing; touch shrubs and rock, dry soils
.
ANSWER
The correct option is D.
The chappral biome is one of the most widespread biome in the world, it can be found on almost all continents. The major characteristic of the biome include the following:
It has both forest and grassland,
It has two major seasons, winter and summer; the summer season is usually very dry and last for about five months.
The dry summer makes the biome sensitive to fire outbreak, which is a common occurrence there.
The amount of rain available to the biome is about 10 - 17 inches per year and is only able to support shrubs growth, only few trees can be found in the biome.
The biome can be a plain, a rolling hill or a mountain and the soil is usually very dry.
During telophase of Mitosis nuclear membranes of two separated nuclei are formed around each set of chromosomes.
<u>Explanation</u>:
Mitosis is the process of cell division part of the cell cycle. Mitosis is classified into four phases which are prophase, metaphase, anaphase and telophase. In prophase the nucleolus disappears, chromosomes start to contents and the mitotic spindle starts to appear and bind to the kinetochore of centromere of the chromosomes. In metaphase nuclear envelope breaks down and the chromosomes becomes fully condensed and organized on the metaphase plate in the middle of the nucleus, during anaphase chromosomes are pulled back to their centromeres with the help of spindle fibers and during telophase the chromosomes starts to decondense, the nucleous reappears and nuclear membrane reforms and spindle starts to disappear.
