Ill give you a brainliest if it is right
...
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 04:00
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:00
Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/User.png)
SAT, 21.08.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 21.08.2021 14:00
![question](/tpl/images/cats/en.png)
English, 21.08.2021 14:00
![question](/tpl/images/cats/en.png)
English, 21.08.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.08.2021 14:00
![question](/tpl/images/cats/health.png)
Health, 21.08.2021 14:00
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/pravo.png)
Law, 21.08.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 21.08.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 21.08.2021 14:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
English, 21.08.2021 14:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.08.2021 14:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 21.08.2021 14:00