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skelet666 [1.2K]
3 years ago
9

I need help please the questions are in the picture please help me and I will give you a thanks and a brainiest please

Biology
1 answer:
Vlad1618 [11]3 years ago
4 0
Their characteristics are their massive size. White dwarfs are smaller and generally hotter. The sun is medium size and cooler than white dwarfs; it has a relatively medium temperature. That star would be classified as a white dwarf because if its small size and massive temperature. That star would be a supergiant. Just put an x on it, mate. 
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The frequency of a lethal allele in a population is greatest when it is: Group of answer choices dominant manifested in infancy
bonufazy [111]

Answer:

recessive

Explanation:

A lethal allele is a gene variant associated with a mutation in an essential gene, which has the potential to cause the death of an individual. In general, lethal genes are recessive because these alleles do not cause death in heterozygous individuals, which have one copy of the normal allele and one copy of the allele for the lethal disease/disorder. In recessive lethal diseases, heterozygous individuals are carriers of the recessive lethal allele and can eventually pass the 'defective' allele on to offspring even though they are unaffected; whereas dominant lethal diseases are caused by dominant lethal alleles, which only need to be present in one copy to be fatal. In consequence, the frequency of recessive lethal alleles is generally higher than dominant lethal alleles because they can be masked in carrier individuals. Some examples of human diseases caused by recessive lethal alleles include, among others, Tay-Sachs disease, sickle-cell anemia, and cystic fibrosis.

7 0
3 years ago
If a subtance cannot be broken down chemically into a simpler subtance, what is it?
Lapatulllka [165]

Answer:

The answer is A) An element—An element can not be broken down chemically into a simpler substance

3 0
4 years ago
What is the greatest use of grondwater
Verizon [17]

Groundwater supplies drinking water for 51% of the total U.S. population and 99% of the rural population. Groundwater helps grow our food 64% of groundwater is used for irrigation to grow crops. Groundwater is an important component in many industrial processes.

7 0
3 years ago
Bacteria can be seen without staining. why then was koch's recommendation for fixing and staining important for the discovery of
Nonamiya [84]

Although bacteria can be seen without staining, not all of their characteristics can be visible. Thus, with staining one can see if the bacteria is gram positive or negative, the outer wall's or capsule's structure, the exact size and texture of the surface etc. Without staining, it would be very difficult if not impossible to differentiate between different bacteria types.

Fixing a bacteria allows the scientist to immobilize and preserve it. Thus a complex study can be performed over a longer period of time. The bacteria can also be preserved in order to be restudied at a later date.

6 0
4 years ago
Plants bring in air into their bodies using structures called
nika2105 [10]

Answer:

Photosynthesis

Explanation:

4 0
4 years ago
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