The Roberts family has had a large family garden for several years. Every autumn, after the first frost, they pull up the dead plants and cover the garden rows with black plastic. When it is spring and planting time, they plant seeds though holes they have poked in the plastic. Why do the Roberts use the plastic covering? A. The black plastic keeps the weeds from growing in the bare soil.
B. The black plastic keeps the soil warm so the seeds will grow in the spring.
C. The black plastic helps the organisms that live in the soil survive the winter.
D. The garden space will be covered with grass and animals will graze in the area.

In one or two well-crafted paragraphs in your laboratory journal, summarize the process in which normal cells become cancer cells. your paragraph(s) must include each of the terms listed below. underline each term in your writing:

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.