Cells can only come from pre-existing cells
CELL THEORY
1. cells are the basic units of structure
2. all living organisms contain one or more cells
3. all cells come from preexisting cells
Hope I helped
Answer:
parasitic
Explanation:
when species 2 population is higher, species 1 is lower, meaning that species 2 harms species 1.
-4
Explanation:
If a radioactive isotope undergoes alpha decay, it's mass number will change by -4.
The mass number of a nuclei is the sum of its number of protons and neutrons.
An alpha particle is similar of a helium atom:
⁴₂He
The atom above is made up of:
mass number = 4
Atomic number = 2
Number of protons = 2
Number of neutrons = 2
Number of electrons = 2
If a substance is undergoing radioactive decay, the mass number of the product will decrease by 4 and the atomic number will decrease by 2.
In nuclear equations, mass and atomic numbers are usually conserved.
learn more:
Transmutation brainly.com/question/3433940
#learnwithBrainly
Answer:
Bound complement components, especially bound C3b and its inactive fragments, are recognized by specific complement receptors on phagocytic cells
The answer to the question stated above is the second option:<span>If a common plant in an ecosystem becomes diseased, the ecosystem may become unbalanced.
>>Tundras are treeless land.
>>Abiotic factors are </span> nonliving condition or thing, as climate or <span>habitat,
>></span><span>An </span>ecosystem<span> is a community of living (biotic factors) and non-living things (abiotic factors? that work together and interact with each other.</span>
