In mammals urine is expelled through the urethra which is part of the excretory system in unicellular organisms waste products are discharged directly through the surface of the cell
Answer:
homo genus
Explanation:
their characteristics include:-
fully opposable thumb
ability to make precise tools
have hairs on their body
lack prehensile tail
form societies
large cranial capcity
hands capable of power and precision grips and many more...
Answer:
Explanation:
Given that d = 0.11cm = 0.0011m, l = 2.2m, extension = 1.24cm = 0.0124m, mass = 34kg
force = 34 x 9.81 = 333.54N, Area = Pi x d²/4 = 3.142 x 0.0011^2/4 = 9.505x10^-7m²
Calculate the stress = Force/Area = 333.54N / 9.505x10^-7m²
= 350926661.4N/m²
calculate the strain = extension/original length
= 0.0124 / 2.2 = 0.00563
Young modulus of elasticity = Stress/Strain = 350926661.4N/m² / 0.00563
= 6.2332 x 10^10Pa
Answer:
It's a form of asexual reproduction!
Development of the offspring happens without fertilization in this type of reproduction.
The two main ways in which parthenogenesis happens is by apomixis or automixis. Through apomixis , the egg cells are produced by mitosis. Through In automixis, egg cells are produced by meiosis.
Mitosis = a part of cell cycle: replicated chromosomes are separated into 2 nuclei
Meiosis = type of cell division that reduces the chromosome number by half. So now there is four haploid cells that are genetically distinct from their parent cell.
Example:
An example of an animal that can use this reproduction is a bonnethead shark! Once a shark had a baby in a tank that only had three females!
(read about that on wikipedia)
When two parents are purebred it means that they are homozygous for the characteristic that's being tested (in this case the fur colour). When they are crossed, the offspring will obligatory be heterozygous, an allele of each type from its parents. So, the trait that comes up will be the dominant trait, while the recessive trait will be hidden.
