Type i alveolar cells secrete pulmonary surfactant. a. True b. False

A system of evolutionary taxonomy is structured on the premise of "no plan, purpose or design" regarding the development of orga

crimeas [40]

True of the develoment

4 0

2 years ago

Read 2 more answers

A gene is physically located on a _____ in the nucleus of a cell.

ladessa [460]

The answer is DNA. DNA is vital for all living beings and this is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine. There are three main functions of DNA to our body, this facilitate occurring mutations and even in a single nucleotide. Then it forms RNA and proteins and this exchange the genetic material of parental chromosomes during meiotic cell.

3 0

2 years ago

Stretch marks are the result of tears in the integumentary layer that contains fibrous connective tissue, elastin, and collagen.

erik [133]

Answer:this region of the integumentary system is called the dermis. The correct option is E.

Explanation: The integumentary layer of the skin is made up of two secrions; the epidermis and the dermis. But the section that contains fibrous connective tissue, elastin, and collagen is the dermis.

3 0

2 years ago

Read 2 more answers

There are 3 main categories of environmental problems that have come about because of the population growth. What are they and e

kakasveta [241]

Answer:

i)declination of resources

ii) air, water and land pollution

iii) global warming

Explanation:

As we all know that population is increasing day by day, all the country of the world are facing rapid population growth.we are facing many problems, the population growth is increasing day by day, the more the population, the more resources we need due to this, the resources is decreasing day by day, we need more resources as there is more population, the increasing population makes more pollution due to this global warming is increasing. We know that there is no more more resources in our world if the resources is finished in this day the future generation will not be able to survive and will not be able to use such resources.we should prevent such resources for future generation also the future generation should get the chance to use such resources .the pollution is increasing day by day .we should control it .the main thing is that we should control the rapid population growth population growth should be controlled due to this global warming is increasing which is very dangerous leading to the declination of ozone layer due to which the harmful rays of sun may enter the earth which may cause various problems in us and cause various diseases due to which we may die.the main thing is that we should stop the population growth, we should conduct public awareness programmes and many more programmes to educate people. Population growth also creates deforestation as the number of people are increasing day by day they need more place to live ,they need more Land due to this they cut down the trees of forest and used to make houses there due to which deforestation takes place. we all know that deforestation is the process of cutting down trees. so the tree should not be cut down as it is the source of oxygen for all creatures living in this whole world and the main thing is that we should provide education to the children and the youth and many more. if we are educated we can stop such population growth. so the main thing is that we should stop population growth by giving education. Education is the only one way to stop such population growth.

5 0

2 years ago

This series of diagrams represent the steps of mitosis. Label each diagram and describe what occurs during each step

ElenaW [278]

Each of the problem numbers.

4 0

3 years ago