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ddd [48]
3 years ago
9

1)

Biology
2 answers:
Molodets [167]3 years ago
3 0

D) Thorns are an adaptation that some plants have evolved in order to discourage herbivores from eating the plant.

Andreyy893 years ago
3 0

1)The answer is D.

Thorns are an adaptation that some plants have evolved in order to discourage herbivore from eating the plant. Plants would try to survive when there are environmental pressures (herbivores eating them in this case) so they would evolve to have thorns.

It is not A because bigger leafs (more surface area for absorbing the sunlight) would help plants produce more food from photosynthesis, not thorns.

It's not B because it is an adaptation, not JUST mutation, but it did happen from changing some letters in the DNA sequence to evolve.

It's not C because thorns doesn't help conserve resources from getting used by others. The thorns of cactus decreases the loss of water from the sunlight because it is normally in the desert so it can survive, not protect resources.

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nataly862011 [7]
It can either undergo mitosis or function as a unicellular body.
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4 0
3 years ago
Read 2 more answers
Natural selection causes A. changes in allele frequencies within a population. B. changes in the mechanism of inheritance. C. th
wolverine [178]

Answer:

Natural selection causes change in allele frequencies within a population.          

So option A is correct one.

Explanation:

Natural selection generally  work  on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.

4 0
3 years ago
From which sphere of earth did chicken wings originate
kogti [31]

Answer:

biosphere ...

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8 0
3 years ago
Interesting facts about rainforest biome
otez555 [7]

1. Rainforests only cover around 2 percent the total surface area of the Earth, but really about 50 percent of the plants and animals on the earth live in the rainforest.

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5. Rainforests are threatened each and every day, especially by practices such as agriculture, ranching, logging and mining.

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6 0
3 years ago
Glaucoma is a leading cause of blindness. Studies have linked a common form of glaucoma to three genes and more than 20 genetic
NeX [460]

Answer: The correct answer is -

d) a dominant trait that depends on the presence of only one of many dominant alleles.

Glaucoma is an autosomal dominant trait, meaning that presence of single copy of the defective gene is enough to cause the disease.

It corresponds to a group of diseases, which cause damage in the optic nerve, leading to loss of vision and if not treated, it ultimately leads to blindness.

Thus, option D) is the right answer.

8 0
3 years ago
Read 2 more answers
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