The respiratory systems function is to breathe.
Answer:
If a group of living organisms is unable to adapt to changing conditions with the earth's system, it shall face extinction.
Explanation:
As time goes by, the earth's systems keep changing, either negatively or positively.
If the earth's temperature decreases then living organisms shall adapt to surviving in cold conditions, they shall for instance grow heavy fur cover on their skin to cover them from the cold.
Those that fail to adapt to the cold conditions shall face extinction by being overpowered by cold related complications.
Answer:
1. Nucleus
2. Nuclear Envelope
3. Nucleolus
4. Chromatin
5. Nuclear Pores
6. Ribosome
7. I don't know sorry
8. Smooth Endoplasmic Reticulum
9. Cytoplasm
10. I don't know sorry
11. Cell wall?
12. Mitochondria
13. I don't know sorry
14. Rough Endoplasmic Reticulum
15. Ribosome?
16. I don't know sorry
Explanation:
I don't know some of these but I hope this helps! :D
Complete question:
A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in F1 generation had black coats. When these mice were crossed, the yielded 961 black coated mice and 317 brown coated mice. How could you account for the ratio of black coated to brown coated mice in the F2 generation? Select all that apply
- The F1 male produced two kinds of sperm, half carrying an allele for black coat color, and half carrying an allele for brown coat color.
- The brown allele segregates together with the black allele and disappears in the F1 generation.
- The F1 female produced two kinds of eggs, half carrying an allele for black coat color, and half carrying an allele for brown coat color.
- An approximately three-to-one ratio of black to brown coated mice in the F2 generation is accounted for by the black allele being dominant over the brown allele.
Answer:
- The F1 male produced two kinds of sperm, half carrying an allele for black coat color, and half carrying an allele for brown coat color. APPLIES
- The brown allele segregates together with the black allele and disappears in the F1 generation. DOES NOT APPLY
- The F1 female produced two kinds of eggs, half carrying an allele for black coat color, and half carrying an allele for brown coat color. APPLIES
- An approximately three-to-one ratio of black to brown coated mice in the F2 generation is accounted for by the black allele being dominant over the brown allele. APPLIES
Explanation:
You will find the complete question, answer, and explanation in the attached files, due to technical problems.
Tundra biome is characterized by very low temperatures,little precipitation and permafrost
it is the biome which is tree less and vegetation is in the form of grasses and shrubs and its the coldest of all
hope it helps
