Answer:
B
Explanation:
The fatty acid tails of phospholipids are hydrophobic – meaning they are ‘water-hating’. This is why they are in the middle of the bi-lipid layer of the cell membrane 'hiding' from the 'watery' environment of a cell. This poses a challenge in the diffusion of large and charged molecules across the membrane -such as sodium ions. Such molecules need transmembrane protein channels to help them cross the membrane. These are called integral proteins because they are part and parcel of the cell membrane. The cell membrane, in addition, also has glycolipids and glycoproteins on its surface that are significant in the identification of the cell by other cells.
Answer:
Rocks
Explanation:
The geosphere includes the rocks and minerals on Earth – from the molten rock and heavy metals in the deep interior of the planet to the sand on beaches and peaks of mountains. The geosphere also includes the non-living parts of soils and the skeletons of animals that may become fossilized over geologic time.
Answer:
The phrase "disease is an agent of natural selection" means that those individuals which carry specific genes to resist the disease will be selected by the nature, whereas those individuals which that don't have or not capable of developing resistance genes will be excluded.
It is a well-established fact that diseases (mainly outbreaks) are best action of nature to select only those individuals which can modify there genetic material and thrive against the changing environmental conditions. Let's take the example of Coronavirus outbreak (COVID-19) this year. From the statistics we know that old people that develop the disease are most likely killed within a few days. However, young people can develop immunity against the virus easily. Hence, nature selects young people and exclude older people. This natural phenomenon is however driven by the disease.
<h2>MCQ:- </h2>
<h3>ANSWER:-</h3>
- Tissue
- Unicellular Prokaryote
- Must be correct
- Not include in any kingdom
<h2>Explanation:- </h2>
(1) Group of cell that work together as one to perform a single function is termed as Tissue . Then the group of tissue combine to form organs and further they combine to organ systems and further they combine to form organ system .
(2) They are unicellular green algae which belongs to family Volvocaceae of the Plantae Kingdom
(3) Hypothesis is the assumption which are taken on the behalf of the observation on small <u>scale</u> . They can be correct or incorrect depends on the number of observation and Hypothesis.
(4) Viruses are included in any of the kingdom because they are on the intermediate line of living and non living as they show properties of non living outside the host and properties of living inside the host
Answer:
1) genetics
2) gregor mendel
3) easy to grow, can be shown year, used for similar studies
4) we are the parents produce offspring that would carry the same phenotype
5) he removed the anthers from the flowers
6) a trait or character is a feature of an organism.
7) the basic physical and functional unit of heredity
8) one of the possible forms of a gene
9) the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction.
10) “P” for parental generation.
11) F1 generation refers to the first filial generation
12) F2 second filial generation consists of the offspring from allowing the F1 individuals
13) The dominant allele is the one that gets expressed.The recessive allele is still there, it just isnt shown.
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