You are presented with the question "Damaged DNA might benefit from:" and the following answer choices: - resistance - cellular repair - mutagens - UV rays - recovery - radiation - Electrical energy - flow of electrons Now knowing that cells have multiple repair mechanisms to fix mutations in DNA and and if the damaged DNA is duplicated, it causes mutation, choose the best answer.
cellular repair
(Question)
You are presented with the question "Crop growth can be negatively impacted by" and the following answer choices: - fossil fuels - light pollution - Pollution - drought - rainbow falls - Greenhouse gasses - lunar eclipse - air pollution Now knowing that air pollution can cause the pH of soil to decrease and highly acid soil is detrimental to crop growth and biological activity in soil, choose the best answer.
(Answer)
air pollution
Ques: You are presented with the question "What can low iron cause?" and the following answer choices: - contamination - Pollution - decrease stamina - harmful substances - immunodeficiency - the ground shaking - cloudy and rainy weather - Temperature changing Now knowing that immunodeficiency occurs when the immune system is not working properly and iron deficiency causes anemia and it weakens the immune system, choose the best answer.
Ans: immunodeficiency
(Q).
You are presented with the question "How can an animal learn actions?" and the following answer choices: - movement - Chemical energy - by fighting - through play - by eating - when they sleep - stamina - Riding a bike Now knowing that behaviors can be learned through play and kids imitate adult actions and behaviors, choose the best answer.
(A).
through play
Ques:You are presented with the question "what are found in algae?" and the following answer choices: - Energy. - pigments - bacteria - meat - melanin - blood - Energy - hydrocarbons Now knowing that chloroplasts are organelles that are found in the cells of plants and algae and chloroplasts Chloroplasts contain photosynthetic pigments, choose the best answer.

Ans:pigments
Ques:You are presented with the question "Which of the following has the most complex nervous system?" and the following answer choices: - animals - nerves - fur seals - humans - elephants - Jellyfish - bears - kalenchoes Now knowing that most invertebrates have a more complex nervous system and jellyfish and insects are invertebrates, choose the best answer.

Ans:
Jellyfish