plants
Biology, 20.01.2021 17:10 tshegofatso92
Which of the following is the primary source of oxygen in the Earth's atmosphere?
OA
plants
OB
animals
OC
factories
OD
bacteria
Reset
Submit
Answers: 3
Biology, 21.06.2019 18:00
1. the passing of is the basis of heredity. 2. our encode the instructions that define our traits. 3. each of us has thousands of genes, which are made of and reside in our chromosomes. 4. in addition to our genes, the we live in also define our traits. 5. humans have two complete sets of chromosomes. 6. when parents conceive a child, each parent contributes set of chromosomes. 7. every child receives of its chromosomes from the mother and half from the father. 8. this transfer takes place at when the father’s sperm joins the mother’s egg. 9. while most cells in our bodies have two sets of chromosomes, or a total of egg and sperm each have chromosomes. 10. when egg and sperm unite they create a single cell called a 11. each parent contributes complete set of chromosomes to their child. 12. since the parents contribute the chromosomes to each new child, every child inherits a unique set of chromosomes. 13. as a result, every baby will have a combination of traits.
Answers: 1
Biology, 21.06.2019 18:30
Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water
Answers: 3
Biology, 21.06.2019 21:00
Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley
Answers: 2
Biology, 21.06.2019 22:30
Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair
Answers: 3
Which of the following is the primary source of oxygen in the Earth's atmosphere?
OA
plants
plants
Mathematics, 29.01.2021 14:00
Social Studies, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
History, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Arts, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Biology, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00
Mathematics, 29.01.2021 14:00