Fragments of rock are squeezed and cemented together.
B.
Plant and animal remains are squeezed and cemented together.
C.
Solid chemicals in water harden and form rocks.
D.
Lava cools and hardens into rock.
Answer:
The correct answer would be A. Fragments of rock are squeezed and cemented together.
Clastic sedimentary rocks refer to the group of rocks formed by clasts or pieces of pre-existing rocks.
Four basic steps are involved in the formation of clastic sedimentary rocks:
Majorly population growth is affected by birth and death rates and also on the migration, immigration factors it also depends on the favourable condition.
like if environment is favorable enough food, living space, no competition, no lethal diseases and also temp. water availability) than growth will be good, if not than growth will be less.
These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.
Fertility Rate
The factor which affects the growth of the population in the biggest way is the fertility rate. The fertility rate is typically measured by the number of children per one woman of child-bearing age. If the fertility rate is larger than 2, the rule of thumb is that the population should rise, as there are more children than their parents. On the other hand, if this ratio is below 2, the population of the region may be destined for a decline.
Mortality Rate
A key factor affecting the growth of the population is the death, or mortality, rate. Just as the birth of new people increases the population size, deaths decrease it. The factors that affect the mortality rate include the availability and affordability of quality health care and lifestyle habits – for example, whether they smoke or do physical exercises regularly.
Immigration and Emigration
Cross-border migration is the act of people moving from one country to another. It affects the population size of both the host and destination countries. Emigration is caused by a number of factors, such as fleeing war, finding education, seeking new jobs or joining family members. When a person emigrates from a country, its population shrinks. When someone moves to a country from another place, it is known as immigration. Whether or not a person is allowed to immigrate is controlled by the country that will host this person.
A.
presence or absence of lungs
B.
prokaryotic or eukaryotic
C.
autotrophic or heterotrophic
D.
presence or absence of backbone
D. presence or absence of a backbone
Answer:
D
Explanation:
All of the animals on the left are vertebrates, or in other words, they have a backbone. The animals on the right are invertebrates or without a backbone. Hope this helps!
mother and father
Answer: Using H as the allele,
Father - Hh or hh
Mother - Hh
Explanation:
Both parents must have at least one recessive gene to pass down to the hemophiliac woman. The mother does not have the disorder, so she must be heterozygous. No information is given on the father, but he must have passed down at least one recessive allele, so he cannot be homozygous dominant.