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galina1969 [7]
3 years ago
11

What hypothesis did Darwin investigate by studying the breeding of pigeons with distinctive traits?

Biology
2 answers:
KATRIN_1 [288]3 years ago
5 0

Answer: A

Explanation:

siniylev [52]3 years ago
3 0

Answer:

New species can appear gradually through small changes in an ancestral species.

Explanation:

The new species that appear are due to hereditary variations that occur in a population. The adaptive variations are said to confer a selective advantage to organisms possessing them. The result of variations is that well adapted individuals are able to survive and reach the reproductive age and pass over their favourable characteristics to their offspring.

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DNA is to deoxyribose as DNA?
slavikrds [6]

Answer:

Deoxyribose, found in DNA, is a modified sugar, lacking one oxygen atom (hence the name "deoxy"). This difference of one oxygen atom is important for the enzymes that recognize DNA and RNA, because it allows these two molecules to be easily distinguished inside organisms.

Explanation:

5 0
3 years ago
while gazing into an aquarium, you see bubbles from an aquatic plant. What is the name of this effect?
liraira [26]

Hydrophonic plants are plants that is living in the lands, and obviously the aquatic plants that are typically used to style aquariums. However, the bubbles you can perceive in an aquatic plant can perhaps be a source of oxygen which is recognized as one of the products of plants as well as human respiration. The bubbles are oxygen and are created from the thylakoid membrane in the chloroplast over photosynthesis.

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2 years ago
Which of the following products of photosynthesis does the mitochondria need to do cellular
Inessa05 [86]

Answer:

carbon dioxide and oxygen.

5 0
2 years ago
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Two genes (R or r) and (D or d), each with a dominant and recessive allele, are
Andrej [43]

Answer:

B. DR, Dr, Rd, dr

Explanation:

This question involves two genes. Alleles D and R are dominant over alleles d and r. These two genes obey the law of independent assortment as proposed by Gregor Mendel.

Based on the question, a genotype RrDd will produce the following combination of gametes following the process of meiosis:

DR, Dr, dR, dr

8 0
2 years ago
Digestive enzymes in your stomach and intestines help digest the food you eat. If you are lactose intolerant and cannot digest m
storchak [24]

Answer:

Lactose intolerance is when your body can't break down or digest lactose. Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called lactase. Lactase breaks down the lactose in food so your body can absorb it.

Explanation:

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3 years ago
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