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zalisa [80]
4 years ago
14

Pleaseeeeeeeeeeeeeeeeee hurryyyyyyyyyyyyyyy

Biology
1 answer:
castortr0y [4]4 years ago
7 0

<span>1) Which of the following is a possible formula unit? PbO -  Li2B  - Al2Pb3 -  ClO
The correct answer is PbO which is Lead(II) oxide – also known as Lead Monoxide – which is an inorganic compound. It is an Amphoteric oxide which can be found, in modern use, in industrial glass, ceramics, or computer components, due to its crystal structure. </span>

<span>
</span>

<span>2) What is the formula of a compound formed between iodine (I) and calcium (Ca)?
Calcium will always give two electrons. but iodine can receive only one. Therefore two atoms of iodine react with one atom of calcium to give CaI2. Their bond is an ionic bond.
Ca 2+ + 2I 1- --> CaI2</span>

<span>
</span>

<span>3) What is the resulting formula unit when strontium (Sr) and phosphorus (P) bond?
Strontium (Sr) wants to lose two (2) electrons, and phosphorus (P) wants to gain three (3). By using the criss-cross method, if you flip the 2 and 3 to the opposite elements, you will end up with the formula Sr3P2.</span>

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Answer:

it should be the snake bc I have one and the mouse gets eat in by the snake

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3 years ago
Please help giving brainliest whats the answer??????
Marrrta [24]
Global winds I’m pretty sure
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How do frogs utilize extensor and flexor muscles in order to swim, jump, and do other frog things efficiently; include specific
ahrayia [7]
<span>The structure of the feet and legs varies greatly among frog species, depending in part on whether they live primarily on the ground, in water, in trees or in burrows. Frogs must be able to move quickly through their environment to catch prey and escape predators, and numerous adaptations help them to do so. Most frogs are either proficient at jumping or are descended from ancestors that were, with much of the musculoskeletal morphology modified for this purpose. The tibia, fibula, and tarsals have been fused into a single, strong bone, as have the radius and ulna in the fore limbs (which must absorb the impact on landing). The metatarsals have become elongated to add to the leg length and allow the frog to push against the ground for a longer period on take-off. The illium has elongated and formed a mobile joint with the sacrum which, in specialist jumpers such as ranids and hylids, functions as an additional limb joint to further power the leaps. The tail vertebrae have fused into a urostyle which is retracted inside the pelvis. This enables the force to be transferred from the legs to the body during a leap </span>
<span>The muscular system has been similarly modified. The hind limbs of ancestral frogs presumably contained pairs of muscles which would act in opposition (one muscle to flex the knee, a different muscle to extend it), as is seen in most other limbed animals. However, in modern frogs, almost all muscles have been modified to contribute to the action of jumping, with only a few small muscles remaining to bring the limb back to the starting position and maintain posture. The muscles have also been greatly enlarged, with the main leg muscles accounting for over 17% of the total mass of the frog.</span>
7 0
3 years ago
What phase of the cell cycle does DNA synthesis occur?
VashaNatasha [74]

Answer:

Interphase

Explanation:

is the only phase that goes through DNA also we are learning the same thing lol

8 0
3 years ago
Photosynthesis and respiration are alike in that
Natalija [7]
Both photosynthesis and respiration require specific catalyst.
Why not the other answer?
(1) only photosynthesis require the sun as a source of energy,respiration use glucose.
(2) photosynthesis result in the formation of glucose,respiration result in the formation of carbon dioxide.
(3)Only respiration occur in the mitochondria,photosynthesis occur in the stroma of the chloroplast.
Answer is 2 because both of them require specific enzyme and as you know enzymes are biological catalyst. 
4 0
3 years ago
Read 2 more answers
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