Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. It is obviously another source of genetic variation in offspring.
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Answer:
False, all plants cells have cell membrane, in addition most of them have also cell wall. They have both
Answer:
Explanation:
Lymphatics join up to form up larger lymph vessel than gradually transport the lymph back to the large veins that run just beneath the collarbone called the subclavian veins.
Answer:
autotrophs!
Explanation:
plants produce their own food!
The correct option is (D) Many parasites release fertilized eggs in the feces of humans and other animals.
<h3>
How toilets can prevent spread of disease?</h3>
- Toilets save lives! Deathly infections proliferate quickly in an absence of restrooms. Every day, over 750 kids under five pass away from diarrhea brought on by contaminated water, subpar sanitation, and bad hygiene.
- Girls who attend schools without restrooms may fall behind in their studies. Many students are compelled to skip school while they are on their period because there are inadequate sanitary facilities.
- Toilets are an excellent purchase. According to data by the WHO, every dollar spent on cleanliness has a return of $5.50 USD.
- However, 892 million individuals practice open defecation, which involves going outside and defecating in bushes, on the side of the road, or in garbage piles.
- 90% of those who use open defecation live in rural areas, therefore it's frequently a question of where they are located.
Learn more about the Hygiene and communicable disease with the help of the given link:
brainly.com/question/24236891
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