Biology, 29.07.2019 14:30 jesuslovesusall3

Sponges, members of the porifera, might be the simplest multicellular animals on earth. they do not have any tissues, organs, or organ systems. in order for sponges to have evolved, what must have happened first? a) the organization of cells into groups b) symbiotic relationships among various cells c) the evolution of cells with nuclei and organelles d) the development of the cell wall as a protective mechanism

Answers: 2

Show answers

Another question on Biology

Biology, 22.06.2019 02:30

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

Answers: 2

Answer

Biology, 22.06.2019 10:30

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

Answers: 1

Answer

Biology, 22.06.2019 11:30

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Answers: 1

Answer

Biology, 22.06.2019 14:00

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !

Answers: 2

Answer

You know the right answer?

Sponges, members of the porifera, might be the simplest multicellular animals on earth. they do not...

Questions