Answer:
The correct answer would be crawling and sucking reflex.
Crawling reflex is the reflex by which baby make crawling movements when placed on abdomen.
It helps in the baby to find his or her mother and food.
Sucking reflex helps the baby to eat food. Through this reflex, the baby starts sucking when area around the mouth is touched. For example, when the nipple is placed inside the mouth of the baby, he or she starts sucking.
Answer:
B. There are three codons that signal the end of a gene.
Explanation:
The statement that correctly pairs biotic factors with an effect on the biosphere is that biotic factors would decrease the oxygen in the soil.
<h3>What are biotic factors?</h3>
Biotic factors of an ecosystem refers to the living components of that ecosystem. Biotic factors include the following:
Biotic factors make use of oxygen in the atmosphere to perform the process of respiration, hence, their presence will cause a decrease in the oxygen content.
Therefore, the statement that correctly pairs biotic factors with an effect on the biosphere is that biotic factors would decrease the oxygen in the soil.
Learn more about biotic factors at: brainly.com/question/11274302
An activity that me, my family or friends engage in that causes pollution is the use of vehicles that run on fossil fuels for transportation.
<u>Explanation:</u>
Fossil fuels contribute to pollution in a large way. Burning of fossil fuels release gases like carbon dioxide, carbon monoxide, oxides of sulphur, nitrogen etc which accelerate pollution. Petrol and diesel are the common fossil fuels used in vehicles.
Easy transportation is the necessity that makes people chose this alternative. There are other alternatives to fossil fuels. Vehicles can use cleaner fuels like CNG and LPG.
The vehicles can also be powered by electricity. But switching to these alternatives has some limitations as well which makes people find it difficult some times. It would never be a simple matter to sop this activity considering how important fast transportation is in this era.
There are 23 chromosomes in a cell but I’m not sure what types they are
