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laiz [17]
3 years ago
9

It is probable that all the conditions which support life on planet Earth simply occurred by chance. TrueFalse

Biology
1 answer:
AlexFokin [52]3 years ago
3 0

Answer:

True

Explanation:

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Help pleasee
Gemiola [76]
The answer is C, sunlight
8 0
3 years ago
The alternation of generations life cycle alternates between haploid and diploid stages. Describe the structures and processes t
svlad2 [7]

Answer:

Alternation of generations (also known as metagenesis) this type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that will have distinct haploid sexual and diploid asexual stages. A multicellular haploid gametophyte with n chromosomes alternates with a multicellular diploid sporophyte with 2n chromosomes is form in these group, made up of n pairs.

A mature sporophyte will produces haploid spores by meiosis, a process which reduces the number of chromosomes to half, from 2n to n.

In the haploid cell the spores germinate and grow into a haploid gametophyte. At maturity, the gametophyte produces gametes by mitosis, which does not alter the number of chromosomes.

5 0
3 years ago
What is the term used to describe the energy needed to get a reaction started?
professor190 [17]
Its activation energy
6 0
3 years ago
What is the main primary producer in a coral reef ecosystem?
tatiyna
The answer would be C
6 0
3 years ago
Read 2 more answers
With independent assortment, the ratio of phenotypes in the F2 generation of a cross between true-breeding strains (AA bb x aa B
Alecsey [184]

Answer:

B. Dominant for one trait and recessive for the other

Explanation:

using the Punnetts square for the question above, the 9 in the ration refers to a dominant for both traits such as AABB, AaBb.

while the 3: 3 refers to a dominant for a single trait and recessive for one such as AAbb, Aabb, aaBB, aaBb

and the 1 refers to recessive for both traits such as aabb.

6 0
3 years ago
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