please help :) good morning :) For which of these questions could a testable hypothesis be developed? Check all that apply. Do children’s heart rates increase at the same speed when walking uphill? Is experimenting with moldy bread more fun than experimenting with yogurt cultures? Does temperature affect how long blood can be stored? How does moisture affect the growth of moss on a tree? Which of Leeuwenhoek’s microscopes was the coolest?

peace be upon you dear

Explanation:

The sinus node signals the heart to speed up during exercise or in situations that are stressful, frightening or exciting. For example, a 10- to 15-minute brisk walk typically elevates the heart rate to 110 to 120 beats per minute

the answers would be

a , c , d

hopefully this helps :)

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.