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BaLLatris [955]
3 years ago
10

Mutations are the source of all new genetic material in a species. a. True b. False

Biology
1 answer:
snow_tiger [21]3 years ago
8 0
This is true, however recombinations can also cause new alleles
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How is a trait passed down from parents to offspring USE OWN WORDS
artcher [175]
A trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. We represent these gene pairs by writing a combination of two letters. For example, if one parent contributes a gene for blue eyes (c), and other parent contributes a gene for brown eyes(C), then we write the offspring’s eye color trait as Cc. This combination, of the two genes that determine the trait, is called a genotype. If gene pair contains a dominant allele, the the offspring will show this dominant trait
8 0
3 years ago
Hypothesize whether prokaryotic cells might have been symbiotic before the evolution of eukaryotic
lorasvet [3.4K]
Some scientists hypothesize that the eukaryotic cells are really the result of symbiotic processes!

Specifically, the internal organs of the cells could be a remnant of a symbiotic relationship in which one cell lived inside of another cell. These two cells then both split upon reproduction and eventually the cell inside was reduced to an organelle.

But according to this theory, it is very likely that the prokaryotic cells engaged in a number of symbiotic relationship, and that this actually lead to the emergence of eukaryotic cells!
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4 0
3 years ago
How has our understanding of the rock cycle changed over time?
Monica [59]

Answer:

The rock cycle is driven by two forces: (1) Earth's internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust, and (2) the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun

Explanation:

5 0
3 years ago
What type of relationship exists between the two organisms?
RUDIKE [14]

Answer:

Commensalism

Explanation:

Commensalism is a type of relationship between two living organisms in which one organism benefits from the other without harming it. A commensal species benefits from another species by obtaining locomotion, shelter, food, or support from the host species, which (for the most part) neither benefits nor is harmed.

3 0
2 years ago
A scientist does a study in which she manipulates the presence of a microbe that lives in plant roots. When a particular microbe
mixas84 [53]

Answer: No

Explanation:

Mutualism is a kind of symbiotic relationship when two species lives in close association with each other to complete their life cycle. In this relationship both the species receives the benefit of association.

The given situation is not an example of mutualism this is because of the fact that in the association with the microbes the plants are more fit but the situation does not describe the fact that the microbe is also getting any benefit of association.

4 0
3 years ago
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