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Sveta_85 [38]
3 years ago
10

Science! Please help, Thanks if you do.

Biology
1 answer:
arlik [135]3 years ago
7 0

Answer:

Explanation:

Mutation is the word used to describe the heritable change in genetic makeup of an organism. This change in turns may help with adaptation for survival or be a disadvantage to the organism in its environment.

Natural selection is a concept in evolutionary biology that describes the process by which heritable traits are confered for survival and reproductive advantage to individuals. It also focus on how related individuals, tend to be passed on changes in traits to succeeding generations and how this trait become more frequent in a population while also observing how other less favourable traits and weak individuals tend to become eliminated from the environment.

Choosing two examples from the above;

• For instance, having large bodies and dark fur serves the purpose to camouflage, for mimicry, and big animals' body parts for agility in competition and colour helps to cover themselves. All these mutations that increases body size and changes the fur color are for physical adaptations.

If there is a change in this features the animals are easily exposed and may not survive.

• Some specific parts of the body of variety of animals are adapted to survival as the environment changes. Among such features are having sharp claws and sharp teeth. A mutation like this provides the animal with body structure that is adapted to survival. Without these features feeding and catching preys for some omnivores and carnivores would be almost impossible reducing the population size.

• Having body structure like dull teeth and hooves are adapted for the survival of terrestrial leaves grazers. Hooves makes running faster and escaping from predators easy. Dull teeth however makes grass cutting for ruminant animal easy.

In the occurrence of forest fire the hooves animals can escape easily, the big bodied animals will be disadvantaged. When the weather or climate changes mimicry / camouflage fur is will be disadvantaged.

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Radiometric dating ______.
aleksklad [387]

Answer:Radiometric dating allows us to indirectly date fossils up to billions of years old based on minerals in surrounding volcanic strata. The correct option is D.

Explanation:

Radiometric dating was first used by geologist after being published by Bertram Bollywood in 1907. During volcanic eruption, some minerals ( carbon) are trapped within the volcanic strata. These minerals are made up of radioactive isotopes which are unstable as they form decay products with a known constant rate of decay. This enables them to :

- access information about the absolute age of rocks,

- date a wide range of natural and man-made materials

- know even the age of earth. I hope this helps. Thanks

4 0
3 years ago
Read 2 more answers
Modeling the Calvin Cycle Exploration
galina1969 [7]

Explanation:

The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Further Explanation:

Photosynthesis is a chemical pathway, integral to plant and other primary producers producing energy. Energy is produced from light, water and carbon dioxide in the form of glucose molecules while the oxygen is emitted.

Photosynthesis, which occurs in several complex steps, is a rate-limited reaction, depends on several factors including concentration of carbon dioxide, ambient temperature, and light intensity; energy is recovered from photons, i.e. light particles, and water is used as a reducer. For those removed from photosystem II, water supplies the chlorophyll in plant cell with replacement electrons.

Therefore, water (H2O) split into H+ a by light during photolysis into H+ and OH-acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ionsand produces molecules of the energy storage moleciule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These hold energy in their bonds, which can be released in respiration in the mitochondria.

Glucose production occurs after G3P production- a molecule of G3P, goes to the cytoplasm from the cycle, to form complex molecules and simple sugars like glucose.

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

 

5 0
3 years ago
Our atmosphere contains 78% free
Alenkinab [10]

Answer:

nitrogen

Explanation:

8 0
2 years ago
During upwelling, nutrient-rich water rises to the surface. How would this most likely affect the biotic components of the ecosy
hodyreva [135]

Answer: Increase in species numbers and diversity

Explanation:

Upwelling is an oceanographic phenomena in which the water from the bottom layers of the ocean usually above the seafloor get displaced and reach upto the surface layers with the effect of wind currents. The water carries away along with it the nutrients and the organic matter to the surface layers which allows the efficient growth of plant and planktonic diversity which favors the growth of sea animals like fishes and others. Hence, by this way the species diversity and numbers increases by the process of upwelling.

4 0
2 years ago
9. According to Larry Crawford, what is the most difficult part as Growing
Anon25 [30]

Answer:

The correct option is D: Being prepared for harsh weather conditions

Explanation:

Plants are sensitive to the changes in the environment and any drastic changes in their surroundings can potentially cause the plant to go into stress, or possibly even die. Too high or low a temperature and the plant will not be able to cope. Similarly, drastic changes in water levels will really affect its health and growth.

Hope that answers the question, have a great day!

5 0
3 years ago
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