24. Four identical rocks four four identical rocks were dropped into a stream and were

Biology

1 answer:

stealth61 [152]3 years ago

3 0

Rock #3 because it’s one of the bigger ones and it is also a rectangle shape making it more difficult for it to just roll on down

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Anatomical changes in hominins indicative of habitual bipedal locomotion include?

jek_recluse [69]

The shortening and broadening of pelvis in hominins was the indicative of habitual bipedal locomotion.

Hominins are the tribe that belong from the sub-family Homininae. They are considered as the first modern humans. They are believed to be our recent ancestors. Homo sapiens species is evolved from this tribe. The various anatomical evolutions in them were: erect posture , larger brains, bipedal motion, broadened pelvis, usage of tools and also they were known for communication.

Pelvis is the area between the lower abdomen and the hip bone. It comprises of bladder and rectum. Some of the reproductive organs of the males and females are also located in their respective bodies.

To know more about Hominins, here

brainly.com/question/13959334

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2 years ago

if an owl makes one pellet a day how many mice,voles,rats,or birds must it catch in one week ,month,or year

Leona [35]

Answer:

$\large \boxed{\text{32 small animals/wk, 136/mo, and 1640/yr}}$

Explanation:

The pellets from a barn owl often contain the remains of 4 or 5 small animals. Let's assume an average of 4.5 animals per day.

1. Animals per week

$\text{Per week} =\dfrac{\text{1 pellet}}{\text{1 da}} \times \dfrac{\text{4.5 animals}}{\text{1 pellet }} \times \dfrac{\text{7 da}}{\text{1 wk}} = \textbf{32 animals/wk}$

2. Animals per year

$\text{Per year} = \dfrac{\text{32 animals}}{\text{1 year}} \times \dfrac{\text{52 wk}}{\text{1 yr}} =\textbf{1640 animals/yr}$

3. Animals per month

$\text{Per year} = \dfrac{\text{1640 animals}}{\text{1 year}} \times \dfrac{\text{1 yr wk}}{\text{12 mo}} = \textbf{136 animals/mo}\\\\\text{A barn owl eats $\large \boxed{\textbf{36 small animals/wk, 136/mo, and 1640/yr}}$}$