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ExtremeBDS [4]
3 years ago
8

Do predators really kill only the old and sick prey? What evidence is there for this statement

Biology
1 answer:
nalin [4]3 years ago
5 0
There are many factors that determine what a predator will prey on. For instance if the predator is starving or if they are hunting in a pack. Predators will usually prey on animals that are easiest to be captured without using too much energy. The sick, young, old, small and unaware animals will often times fall prey since they are easiest to be caught. Predators don't necessarily prey only on the ill/ injured. Sick prey may be overlooked because their bodies may not provide the necessary sustence for the predator and others it may be feeding. Healthy large slow moving animals may be difficult to kill but the payoff is greater, especially if a pack is involved.
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A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.
emmainna [20.7K]

Answer:

The deceleration of the plane is 0.25 m/s^{2}.

Explanation:

Deceleration is the converse of acceleration.

From first law of motion, we have;

v = u + at

where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Thus,

v = 50 m/s

u = 80 m/s

t = 120 s

50 = 80 + 120a

50 - 80 = 120a

-30 = 120a

a = \frac{-30}{120}

  = -0.25

a = -0.25 m/s^{2}

The deceleration of the plane is 0.25 m/s^{2}.

4 0
3 years ago
What makes a dominant allele different from a recessive allele
Archy [21]
A dominant allele can produce a dominant phenotype in individuals with one copy of the allele from one or both parents, but a for recessive allele to produce a recessive phenotype, the individual needs to have two copies, one from each parent.
5 0
2 years ago
What kinds of gene mutations are possible?
alexandr402 [8]

Answer:

Missense mutation.

Nonsense mutation.

Insertion.

Deletion.

Duplication.

Frameshift mutation.

Repeat expansion.

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=3x%20-%206%20%2B%202x%20%3D%20%20-%202%20%2B%20x" id="TexFormula1" title="3x - 6 + 2x = - 2 +
dimaraw [331]
First move the x from the right side to the left by subtracting. 3x-6+2x-x=-2. combine like terms. 4x-6=-2. add six to both sides. 4x=4. divide 4 on both sides. x=1. hope this helped!
6 0
4 years ago
Which process is responsible for increasing the size of the egg?
kondor19780726 [428]

Answer:

This process of water moving through a membrane is called osmosis.

Explanation:

Osmosis equalizes – or makes the concentration of water on both sides of the egg membrane the same. This means the egg will swell as the water moves inside and get larger.

6 0
1 year ago
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