Answer: arteries carry oxygenated blood away from the heart to the body. Veins carry oxygen-poor blood back from the body to the heart.
Answer: The options are not given, here are the options.
A. A zygote is an unfertilized egg
B. A zygote is made up of one cell
c.A zygote is the fusion of two gametes
d.A zygote is where gametes are formed
The correct option is C.
zygote is the fusion of two gametes
Explanation:
A zygote is the fusion of to gamete because it is formed from the union of sperm cell and ovum or egg when the sperm and ovum fuse together after fertilization.
A zygote is start as a single cell but it eventually divides after undergoing fertilization after some days into smaller cells.
Therefore, after two weeks that the zygote divides, it become an embryo.
In the gene pool of population with 350 individuals a fixed allele has a frequency of 1(one). Fixed alleles is the alleles that is the only variant that exist for that gene in all population.The frequency of gene pool with a population of 350 is = 1 since the frequency of total alleles =1
In the 9th century, it was suggested that when organisms change, they are adapting to survive.
Lamarck, was the researcher that created the theory of acquired characteristics.
Malthus first proposed the idea that overpopulation <span>contributed to the lack of resources and interfered with survival, but he applied this to only humans, Darwin was the first to apply this to all organisms.</span>
