Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
Explanation:
Answer:
i think the last option might be correct
Answer:
1. the middle piece contains the chromosomes. FALSE
2. the tail contains the mitochondria. FALSE
3. the acrosome is next to the tail. FALSE
4. the head contains 46 chromosomes. FALSE
5. the acrosome is next to the nucleus, and the head contains 23 chromosomes. TRUE
Explanation:
The major parts of a mature spermatozoan in human males are the head, middle piece and the tail. The head of the sperm is a flattened and pointed structure that contains a nucleus. There are 23 chromosomes present in the nucleus. Chromosome surrounds the anterior two-thirds of the nucleus. The acrosome is a caplike vesicle and is filled with hydrolytic enzymes that help a sperm during fertilization. The middle piece contains mitochondria that provide the energy (ATP) for locomotion of sperm to the site of fertilization and for sperm metabolism.
Answer:
D. cytokines differs in plant cells and animal cells
Explanation:
A. is false, as prokaryotes to not divide by mitosis. They divide by binary fission.
B. is false. Animal Cells do not have cell walls. Prokaryote and Plant cells have cell walls. Animal Cells have plasma membranes.
C. is also false. Eukaryotes have line-like chromosomes. Prokaryotes have a single circular chromosome.
D. IS true. Cytokinesis differs in plant cells from animal cells. This is mainly due to the cell wall in the plant cell.
