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Gwar [14]
3 years ago
12

Which scientist became famous for telling the world about environmental harm cause by ddt

Biology
1 answer:
lutik1710 [3]3 years ago
3 0
Rachel carsen became famous for telling the world abut environmental harm caused by the ddt 
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Knowing how food choices impact the function and productivity of cells, why do you think it is important to maintain a healthy d
Scilla [17]

Answer:

healthy diet prevents and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. constantly eating junk food can lead to obesity and chronic diseases like cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease and some cancers.

Explanation:

3 0
3 years ago
How do oceanic upwellings promote the growth of microscopic plankton?
MissTica

Answer:

They bring dissolved nutrients to the surface of the ocean. They decrease the levels of oxygen at the surface of the ocean. They decrease the amount of nutrients at the surface of the ocean.

Explanation:

3 0
2 years ago
Use the probability method to calculate the genotypes and genotypic proportions of a cross between AABBCc and Aabbcc parents.
lora16 [44]

For this, you need to use Punnett squares.

You know the genotype of the parents, and for the cross, you need to separate into two alleles, both genes.

AABBCc divided like ABC and ABc.

Aabbcc divided like Abc and abc.

Now you can cross them, and all probabilities will be:

AABbCc, AaBbCc, AABbcc and AaBbcc

So, you could say 25% of the offspring will be AaBbCc, 25% AaBbcc, 25% AABbCc, and 25% AABbcc

7 0
3 years ago
Most land-dwelling invertebrates and all of the amphibians _____. _____ Select one: a. are ectothermic organisms with variable b
valkas [14]

Answer:

A.)are ectothermic organisms with variable body temperatures.

Explanation:

Invertebrates animal are animals that lack a backbone, Land invertebrates include insects,spiders, centipedes ,coelenterate, an arthropod, mollusc and the rest.

Ectotherms are also called called cold-blooded animal because their bl body temperature regulation is dependendent on external sources, such as sunlight or a heated rock surface. Some of the examples of ectotherms are fishes, amphibians, invertebratesand reptiles. The aquatic ectotherms body temperature is usually compare closely to the temperature of the surrounding water

Ectothermic species that lives in temperate regions usually experience rapid and potentially stressful changes in body temperature simply because of weather changes even among amphibians there is variation in their temperature

It is believed that naturally occurring periods of temperature variation negatively impact amphibian health.

7 0
3 years ago
What reactants are involved in photosynthesis? A. C2H4O2 and H2O and sunlight energy B. H2O and CO2 and chemical energy C. C2H4O
DerKrebs [107]

Answer:

D.

Explanation:

The reactants used in photosynthesis are H2O(water), CO2(carbon dioxide), and light(sunlight) energy. These are used to produce glucose for the plant and oxygen which is released.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

5 0
3 years ago
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