Answer:
A. Some pea plants grow slowly and have few offspring
Explanation:
This contrast the reason why Mendel chose pea plants.
They grow rapidly and produce a lot of offspring.
thymine
adenine
cytosine
guanine
Explanation:
uracil is not because uracil is only RNA.
There is not any nucleus and nuclear bound organelles in prokaryotes....
DDT stands for dichloro-diphenyl-trichloroethane. The first kind of synthetic/artificial insecticides came into use in the 1940s. The earlier usage of DDT include: a) Killing of malarial vectors, b) Combatting Typhus and other insect borne human diseases, c) As a pest control in crops d) as a pest control in garden, live stock production and even at homes.
The negative impact of DDT could be felt for the first time when the pests that were earlier killed by use of DDT have now become pesticides resistant. In the 1950s in USA, the regulatory measures were adopted to reduce the usage of DDTs as its effects as a pesticides were no more long significant and also it was creating detrimental physical and psychological impacts on the human and environment.
It was in 1972 that the U.S. Environmental Protection Agency cancelled the order for banning the usage of DDT based on the adverse impact it produced on the environment, human and other life forms. Since then continuous studies are being conducted to analyse the impact of DDTs. In some later years it was established that DDT is the cause of producing tumors in liver.
Some of the common negative impacts produced by DDT as per the U.S. Department of Agriculture :
a) The non destructive nature – DDT can not be destroyed and thus it remains persistent in the atmosphere
b) It attacks the tissues of living organisms especially the animals and humans ( fatty tissue)
c) It can penetrate the atmosphere to deeper extent.
Now as per the current stuation, The use of DDT is controlled and other alternatives of pest control organisms is being deduced. As per the treaty of Stockholm Convention on POPs (Persistent organic pollutants) , usage of DDT for malarial control is justified but it puts a restrictive use of DDT as pesticides in other areas.
Noncolumnar patterns of blood flow with the interconnected vascular network.
The standard model of cortical columns has network has tightly linked vascular network. It graph was carefully studied and theoretically analyzed. The results concluded that the microvascular that forms the subsurface, has formed a topology by the interconnected loops. And it is consistent with the boundary and the position of columns.
Furthermore, it was calculated that the blood flow patterns in the cortical column network are not related to the column's location. Instead, to limit lateral perfusion venues were penetrated that drained the sourced blood effectively by penetrating the arterioles.
Therefore, this analysis helps in understanding the effect of penetration strokes of vessels and its functional imaging on the viability of the brain.
To know more about arteriole, refer to the below link:
brainly.com/question/3420464
#SPJ4
