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Lelechka [254]
3 years ago
13

Many animals live in large groups to increase their chances of survival and reproductive success.

Biology
1 answer:
vivado [14]3 years ago
8 0

Answer:

D. Animals living in large groups tend to compete more for resources and mates.

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In some conditions caused by mutations, it is beneficial for an individual to be a carrier of the disorder, and not have the ful
sattari [20]

Answer:

Explanation:

A heterozygote advantage describes the case in which the heterozygous genotype has a higher relative fitness than either the homozygous dominant or homozygous recessive genotype. The specific case of heterozygote advantage due to a single locus is known as overdominance. Overdominance is a condition in genetics where the phenotype of the heterozygote lies outside of the phenotypical range of both homozygote parents, and heterozygous individuals have a higher fitness than homozygous individuals.

5 0
4 years ago
A bacterial cell usually contains a single loop of DNA that is located in the cytoplasm of the cell and is not surrounded by a n
never [62]

Genetically modified bacteria (recombinant bacteria) with the human gene for insulin is useful because after it’s being put in fermentation tank it starts to produce human insulin protein. The process of making recombinant bacteria includes DNA cloning.

A target gene, in this case, insulin gene, is inserted into a circular piece of DNA called a plasmid via restriction enzymes and DNA ligases. Recombinant DNA  is then introduced into bacteria via a process called transformation. With the right conditions the bacteria that contains the human insulin gene, will start transcribing the gene and translating the mRNA to produce many molecules of human insulin protein.

7 0
3 years ago
By which process do plants contain carbon from the atmosphere​
gregori [183]

the answer is the carbon cycle

5 0
4 years ago
Read 2 more answers
Select the correct answer.
riadik2000 [5.3K]

Answer:

Answer is B.

nitrogen (78.10%), oxygen (20.90%) - this combination of gases dominate the Earth’s atmosphere.

Explanation:

The atmosphere of earth is a gaseous layer which surrounds the earth. It  protects the life on earth by absorbing harmful ultraviolet radiation, reducing temperature extremes, maintaining the existence of  liquid water on the earth's surface and warming the surface. The atmosphere consists of many gases including some pollutants and greenhouse gases. Nitrogen is the gas present in the atmosphere most abundantly while Oxygen and Argon take the second and third place. Atmosphere contains approximately 78% of nitrogen , 21% of oxygen and 0.9% of argon. Gases like carbon dioxide, nitrous oxides, methane, ozone and the water vapor constitutes the rest of the atmosphere. Many small particles called aerosols are also there which include dust, spores, pollen, volcanic ash, smoke etc. There are five layers of atmosphere. Troposphere (0 to 12 km) where we live is the lowest layer of earth's atmosphere ,which is closest to the earth's surface contains half of the atmosphere. Here most clouds are found and almost all weather occurs. Stratosphere (12 to 50 km) is the second layer where jet aircraft and weather balloons fly. It contains the ozone layer that absorbs harmful radiation from the sun.  Mesosphere (50 to 80 km) is the third highest layer and the coldest part of the atmosphere where most meteors burn up upon entering in to the atmosphere. The fourth layer is thermosphere (80 to 700 km) where the International Space Station orbits earth and the space shuttles flew. Exosphere (700 to 10,000 km) is the outermost layer where the atmosphere merges into outer space. Most of the satellites orbiting earth are found here.

8 0
4 years ago
Read 2 more answers
What causes there to be a H+ ion concentration gradient to build up inside the thylakoid space? Check all that apply. a. The ele
siniylev [52]

Answer:

a. The electrons provide energy for the H+ pump to transport more H+ ions into the thylakoid space.

d. The photolysis of water releases H+ ions into the thylakoid space.

Explanation:

This question describes the first stage of photosynthesis, which is LIGHT-DEPENDENT REACTION. The light dependent reactions involve creating ATP (energy carrier) and NADPH (electron carrier) needed for the Calvin cycle (light independent stage) to occur.

The ATP is formed by pumping hydrogen ions (H+) into the thylakoid space/lumen, hence, creating a electrochemical gradient needed for ATP synthase to synthesize ATP. The buildup of H+ ions is caused by:

- The electrons that arise when light photons hit a chlorophyll molecule is used to provide energy for the H+ pump to transport more H+ ions into the thylakoid space.

- The photolysis of water results in the production of electrons (e-) and hydrogen ions (H+). These hydrogen ions are released into the thylakoid space.

8 0
3 years ago
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