Answer:
C. It’s impossible because think about it we don’t have good/ great enough data to explain or prove which is older
Explanation:
The answer would be C. studying chromosomal changes in mitosis cell division. because mitosis is when the parent cells are just copies of an identical cell or known as the daughter cell.
Answer:
B.Gymnoperms produce male cones and female cones, and the pollen from a male cone fertilizes the egg inside a female cone.
1. Bees pollinate flowers and flowers provide nectar for the bees. "M"
2. A tapeworm attaches to the intestines of animals and absorbs their nutrients. "P"
3.Tiny birds helping to keep a crocodile's mouth clean by eating scraps of
food caught between the crocodile's teeth. "M"
4. A tree frog using a plant for shelter from the rain. "C"
5. A tick feeding on the blood of a deer. "P"
Explanation:
Mutualism : If 2 or more species are having an association and the relation is useful to both the organisms in relation, is termed 'mutualism'.
eg: In pollination bees transfer pollens and help reproduce flowering plants and bees get nutrition from the nector.
The plover bird comes to crocodile's mouth as it gives invitation to it to cleanse its mouth and food stuck between the teeth because crocodile cannot go flossing. In turn plover birds gets its food. In this relation both bird and crocodile benefited.
Commensalism: This is a relation between two organisms or species in which one partner is benefited while other neither gets harmed nor benefited.
eg :A tree frog utilizes the shade of plants and hide in the plant to get saved from prey in turn plant does not get anything.
Parasitism: In this association parasite lives in the organism and benefits from it but host gets harmed with this association.
eg: The tapeworm living in intestine of animals attaches to draw nutrition in turn animal gets disease caused by it.
Tick receive nutrition and the deer gets the disease.
Answer:
The type of pollution demonstrated is sediment pollution.
Explanation:
- Sediment pollution is the deposition of waste products in rivers, lakes and streams by the means of soil erosion.
- So in the abandoned construction site, sediment pollution is the major issue that causes the environment's wind and water to pollute heavily.
- The waste is swept and carried to different places that pollutes the environment badly due to the exposed construction site.