Acorn plant has been genetically engineered. it produces pollen that can make its own toxins. these toxins protect the corn plant against pests. what is a likely impact on the environment around the corn plant?
a. bird and butterfly populations around the area may increase.
b. the concentration of pesticides in a nearby lake would increase.
c. newer strains of pesticide-resistant pests may develop.
d. the carbon dioxide level would increase in the area.

The answer is Newer strains of pesticide-resistant pests may develop.

Explanation:

The plants having their DNA modified through genetic engineering are called genetically modified plants. These genetic modification are done to introduce new traits in plants for example, rapid growth, bigger size, drought tolerance, pests resistance etc. However, there are some concerns related to genetic engineering of plants. When a corn plant will be genetically modified to produce certain toxins that can protect it from pests there will be some negative impacts on the environment. The horizontal gene transfer mechanism can gradually increase the adaptation to that toxin and new pesticide-resistant pests will develop.  

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.