Astudent is studying water fleas and measuring their heart rates as the number of beats per second. what type of data is he recording? hypothetical, qualitative, or quantitative

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

The cluster of developing cells from conception until birth is called an

What element is able to combine with itself and hydrogen to form large molecules ?