Answer:
External means on the outside, so it can be something like their fur color. Some other features can be number of legs, if they have wings or not, etc.
1. Air pollution would still be an issue since fossil fuel trucks that produce exhaust have to go pick up recyclable items and bring them back. Also, the recycling process itself produces a lot of pollutants from inside the factory.
2. Contamination is also a huge obstacle in the recycling industry. Sometimes there are errors with sorting through recyclable stuff and let's say, for example, a spray can gets mixed in with other types of recyclables; it can contaminate the new products.
3. Most plastics can not be recycled. There are about seven types of plastic that we find and encounter on a day to day life, but only two of those plastics are recyclable. What isn't recyclable will be collected, processed, sorted and then thrown into a landfill.
Hope this helps.
The correct answer is- A tendon is a connective tissue that links a bone to a muscle.
Tendons are a type of a connective tissue. They are fibrous tissue with great strength like rope and made of collagen fibres, but they have less flexibility. The main function of tendons are to connect bones to muscles for the proper function of the body.
After ovulation, the ruptured follicle is transformed into the hormone-secreting structure called the corpus luteum.
<span>The corpus luteum or yellow body is an endocrine structure which is temporarily formed inside the female ovaries and is involved in the production of hormones such as progesterone, moderate levels of estradiol, inhibin A and small amounts of estrogen. The corpus luteum is essential for and maintaining the early stages of pregnancy in females.</span>
The correct answer is letter C. Eugenics is the science of improving hereditary qualities. It came from the Greek word, eugenes, which means "well-born race, stock, kin." This is a practice of beliefs that aimed at improving the quality of genes of a particular human population. Much like the way that Spartans bred their offsprings where they made sure that only the best quality genes are present in their population.
