No.
There are various arthropods in the world. The arthropods that have wings are identified as insects, and they only have two pairs if wings, which is four.
Insects have two pairs if wings, 2 on the higher part of an insects body and 2 lower ones. It some cases insects lack back wing's.
That being said, winged arthropods(insects) don't always have 2 pairs of wings. The amount of wings varies on the type of insect.
Answer:
What is obtained by putting a bunch of muscle cells together is muscle tissue (option c).
Explanation:
Cells are the basic units that constitute living beings. These cells have the ability to differentiate and associate to form tissues.
Muscle cells are specialized cells, with contractile capacity, which when united form the muscular tissue, from which the striated and smooth musculature of the internal organs is formed.
Cells form tissues, these form organs and the set of organs constitute the different apparatuses and systems of the organism.
The other options are not correct because:
- <em><u>Heart
</u></em><em>: is a specialized organ formed from heart muscle tissue.</em>
- <u><em>Circulatory system</em></u><em>: is a set of organs and structures, responsible for the circulation of blood. It includes the heart and blood vessels.
</em>
- <u><em>Molecule</em></u><em>: corresponds to the molecular level of matter, formed from the association of atoms.</em>
The anwer is A which is Sandra should give are workout more variety by either uttering the exercises,intensity,or volume of work
Answer:
B. Bubonic plagues
Explanation:
Bubonic plague is caused by Yersinia pestis. Rats, prairie dogs and squirrels are the pests that harbour the disease while fleas serve as vector, carrying the Yersinia pestis to humans.
The human victim either touches a dead infected rodent or is bitten by an infected flea. The bacteria invade the skin and are gobbled up by macrophages. They continue to reproduce intercellularly and within lymph nodes especially the inguinal nodes. The nodes swell like eggs and become hot, red and painful. Fever and headache sets in. Hemorrhages under the skin cause a blackish discoloration leading people to call bubonic plague the "Black Death."
Without treatment, death occurs within a few days. Treatment is with antibiotics such as streptomycin, doxycycline.