Answer:
Gravity is considered to be one of the universal forces inherent of nature itself. Gravity is an attractive force between objects, which is proportional to the mass of the objects and inversely proportional to the distance between them. Gravity is what help planets follow an elliptical orbit, and is the reason why we can keep our feet on the surface of the earth.
Answer:
B. F1
Explanation:
Plants used in first-generation crosses were called P, or parental generation, plants (Figure 8.3). Mendel collected the seeds produced by the P plants that resulted from each cross and grew them the following season. These offspring were called the F1, or the first filial (filial = daughter or son), generation.
Steroids are naturally occurring as sterols, adrenal, sex hormones, some vitamins and make up most drugs as synthetic steroids.
Types Of Steroids and Their Functions
1. Anabolic Steroids
-increase muscle mass
-promote cell growth and division
-testosterone( natural anabolic steroid) is used in sperm production, development of male reproductive organs and emergence of male secondary sexual characteristics.
-stimulates bone and muscle growth.
2. Sex Hormones
-produced by adrenal cortex
-aid in development of gametes
-prepare females for pregnancy, menstruation
OTHER
-enable longer athletic sessions
-increase protein synthesis
-Anti-inflammatory steroids can reduce swelling, pain and other manifestations of inflammation
Answer;
-Totalitarianism
Explanation;
-Totalitarianism refers to a political system in which all authority is in the hands of the state. In a totalitarian society, all control of public and private life are government run.
-A totalitarian society is usually ruled by a dictator, and there is very little or no freedom. In totalitarianism, the government controls almost every aspect of life. For example, Hitler employed totalitarianism as a means to attempt to achieve an obedient nation that was his personal vision for the country.
A scientific theory can always be disproved if someone comes along with better evidence which shows another theory is true. However, most other theories are small improvements on existing ones. Evolution and natural selection (the theory that animals' populations change over time because their environment encourages specific different features for individuals that happen with mutation) was an improvement on the existing "theory" that animals were built to be fit for their environments. The earth rotating around the sun was a theory improving on the idea that the sun and the earth move around so that it looks like the sun moves around the earth. All of these happened because there was evidence, so while theories aren't always absolutely true, many modern theories are typically well-tested and if they aren't, they are usually refered to as hypotheses or models (although models can sometimes also be theories, like the Standard Model)
