Answer:
White blood cells.
Explanation:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
a) volume in cm³ = 20 × 42 × 42 = 35280 cm³
b) volume in m³ = 0.2 × 0.42 × 0.42 = 0.03528 m³
c) volume in ml³ = 200 × 420 × 420 = 35280000 ml³
d) volume in litres = 0.02 × 0.042 × 0.042 = 0.00003528 l³
e) Density = Mass / Volume
Mass = Volume × density
= 0.00003528 × 1
= 0.00003528 × 1000
= 0.03528 grams
f) Mass in kilo gram = 0.00003528 kg
Explanation:
Vinegar and baking soda have many uses in our society.
Both are obviously used for baking and cooking.
They also as more environmentally friendly, and sometimes more effective, alternatives for certain cleaning products.
A specific example, in a school science classroom setting, they are safe products for a basic lab demonstration for chemical reactions.
Symbiosis are relationships between species that are adapted to each other and may be mutually beneficial or involve exploitation called.
NOT:
A.competition C.logistic <span>D.exponential</span>
