the ratio birds : animals = 13 : 2 so for every 1 animal, 6.5 birds were born
last month: animals = birds - 44 birds - animals = 44 use trial and improvement to find: if there were 52 birds, there must be 8 animals CHECK: 52 - 8 = 44
There were 52 animals born at the zoo last month. This was calculated using the ratio of birds to animals and the information that there were 44 more animals than birds. By setting up equations based on these relationships, we determined the number of animals produced during this time.
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Berikut adalah analisis jalannya impuls sampai menimbulkan respons saat lutut dipukul dengan palu, dikenal sebagai refleks lutut (refleks patela):⸻✅ Urutan Jalannya Impuls Refleks Lutut: 1. Rangsangan:Palu memukul ligamen patela (di bawah tempurung lutut). 2. Reseptor (sensor peregangan otot):Reseptor di otot paha (m. quadriceps femoris) mendeteksi peregangan mendadak akibat pukulan. 3. Saraf Sensorik (Aferen):Impuls dari reseptor dikirim ke sumsum tulang belakang melalui saraf sensorik. 4. Interneuron di Sumsum Tulang Belakang (jika refleks kompleks):Pada refleks sederhana seperti ini, impuls langsung diteruskan ke saraf motorik tanpa melalui otak (refleks spinal). 5. Saraf Motorik (Eferen):Mengirim impuls dari sumsum tulang belakang ke otot paha bagian depan. 6. Efektor (Otot Paha):Otot paha berkontraksi → kaki menendang ke depan sebagai respons.⸻ Ciri-Ciri Refleks Lutut: • Termasuk refleks tak sadar dan cepat (refleks spinal). • Tidak melalui otak, hanya sampai sumsum tulang belakang. • Digunakan dokter untuk memeriksa fungsi sistem saraf.⸻ Rangkuman Jalur Refleks:Rangsangan → Reseptor → Saraf Sensorik → Sumsum Tulang Belakang → Saraf Motorik → Efektor (otot) → Respons