Question 1: How do offspring resulting from sexual reproduction differ from offspring resulting from asexual reproduction?
Asexual reproduction involves a single parent. It results in offspring that are genetically identical to each other and to the parent. All prokaryotes and some eukaryotes reproduce this way. There are several different methods of asexual reproduction. They include binary fission, fragmentation, and budding. <u>AND</u> in in sexual reproduction, parents produce reproductive cells—called gametes—that unite to form an offspring. Gametes are haploid cells. This means they contain only half the number of chromosomes found in other cells of the organism. Gametes are produced by a type of cell division called meiosis, which is described in detail in a subsequent concept.
Question 2: How do DNA, chromosomes, and genes work as the instructions for heredity?
Each gene occupies a specific position on a chromosome. Because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body, it follows that genes are responsible for all the characteristics you inherit.
Question 3: How do environmental factors and heredity affect personal health?
Heredity and environment interact to produce their effects. This means that the way genes act depends on the environment in which they act. In the same way, the effects of environment depend on the genes with which they work.
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Answer:
That is causing global warming. It is causing the sea level to rise and it is also making hurricane stronger.
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Answer:
They can mimic a natural hormone and lock onto a receptor within the cell. The disruptor may give a signal stronger than the natural hormone, or a signal that occurs at the "wrong" time.
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Answer:
Recluse Spiders (Loxosceles) is known as the most venomous spiders in north america.
Explanation:
There are 3,000 species of spiders described in North America.
Among the spiders found in North America, only the Loxosceles and Latrodectus species are considered really dangerous and an average of 4 people die from venomous spider bites a year in the USA.
The Brown Recluse Spider's venom can cause significant cutaneous injury with tissue loss and necrosis, and can be deadly to humans. However, though it is very dangerous to people, it is not an aggressive species and it only bites when threatened.