How and why humans make changes to their
ecosystems. Are these changes negative or positive?...
Biology, 05.05.2020 03:25 ameliaduxha7
How and why humans make changes to their
ecosystems. Are these changes negative or positive?
Answers: 3
Biology, 22.06.2019 05:40
The body of water found at number 4 on the map above is the
Answers: 1
Biology, 22.06.2019 06:30
Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
Answers: 1
Biology, 22.06.2019 11:30
In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48
Answers: 1
Biology, 22.06.2019 12:00
The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.
Answers: 1
Computers and Technology, 30.11.2019 02:31
Computers and Technology, 30.11.2019 02:31