Biology, 02.08.2019 03:20 fsdfsf

What is a difference between exoskeletons and endoskeletons?
a. an exoskeleton is rigid, and an endoskeleton is flexible
b. endoskeleton are only found in vertebrates
c. exoskeletons are composed of calcium, and endoskeletons are composedd of chitin
d. exoskeletons are external to the soft tissues, and endoskeletons are internal

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 14:00

Which of the following statements best describes the relationship between the environment and human health? a. the environment is the only factor that affects human health. b. many aspects of the environment can have an impact on human health. c. human health is impacted by changes in climate. d. the environment has no impact on human health. select the best answer from the choices provided

Answers: 2

Answer

Biology, 21.06.2019 14:50

Genetic diversity is the variation in the genes of an entire species. each circle represents a population of a particular species in different habitats. select the population with maximum genetic diversity

Answers: 1

Answer

Biology, 21.06.2019 22:30

Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. viruses are tiny infectious pathogens that cause many different diseases, such as polio, and the flu. though they are similar to one celled organisms in some ways, in many ways they are very different. use the venn diagram below to show the similarities and differences between viruses and living organisms.

Answers: 3

Answer

Biology, 22.06.2019 10:30

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

Answers: 1

Answer

You know the right answer?

What is a difference between exoskeletons and endoskeletons?
a. an exoskeleton is rigid, and...

Questions