The option that represents the correct flow of events during meiosis II is A) sister chromatids pulled to opposite poles, nucleoi form, cytokinesis.
The green house effect refers to gases trapping the heat energy reflected from earth’s surface.
gases trapping heat energy reflected from the earth's surface.
<u>Explanation:</u>
It is the greenhouse effect that made earth a planet that supports life. if there was no green house effect the earth would have been too cold to live on. Sunlight contains rays like UV and infrared.
UV rays being harmful are blocked by the ozone layer in the stratosphere. Infrared rays that enter the earth’s atmosphere are trapped by the greenhouse gases like carbon dioxide, water vapour, methane etc. the trapped infrared rays help in providing warmth.
Answer:
c. bone (osseous tissue)
Explanation:
The extracellular matrix of the bone tissue consists of an organic component and an inorganic component.
The organic component includes Collagen , proteoglycans and glycoprotiens, While the inorganic component contains calcium and phopsphorus. The cells are present in the lacunae situated betwen the lamellae and contain a number of oblong spaces.
It also contains blood vessels as a typical long bons is supplied by a nutrient artery , periosteal vessels and epiphyseal arteries.
Hence C is the right answer.
Answer:
Asexual reproduction is a type of reproduction that doesn’t involve gametes fusing or the change in the number of chromosomes. A spider plant is the perfect example of asexual reproduction, but when it comes to plants like that, it’s referred to a type of asexual reproduction called vegetative propagation.
Answer:
a. Zero percent
b. Fifty percent
Explanation:
As it has been mentioned in the question that both man and woman are normally pigmented and each one have an albino parent thus both will be heterozygous and their allelic makeup will be as follows -
Man - Aa
Woman - Aa
After a cross between Aa × Aa we get the following result-
One AA, Two Aa and One aa
It is clear that only the aa type of offsprings will be albino.
Out of 4 there is probability of only one to be albino so out of two there will be 50% probability of being albino.
The probability of both sons to be albino will be zero percent.
