How do bicarbonates influence biotic factors?

Define groundwater, and list some anthropogenic (human) sources of groundwater pollution. Why do many scientists consider ground

joja [24]

Explanation:

Groundwater is the freshwater present below the earth's surface. It originates from the rain, ice, melting snow.

Some anthropogenic sources of groundwater pollution are

Aluminum.

Sulfur.

Arsenic.

Nitrates.

Fluoride.

Groundwater pollution has more problems than surface water pollution because groundwater is mostly hidden and it is very difficult to view, manage and monitor.

Groundwater holds its contamination and pollutants that cause pollution whereas surface water rinses their contamination and pollutants.

8 0

2 years ago

Q. A person’s blood glucose level ﬂuctuates during the day, asrepresented in Figure 1. Two hormones, insulin and glucagon,are di

Minchanka [31]

Answer:

If the person has another meal after 5 pm, the glucose level in the blood will increase, and the insulin level too.

Several hours after the meal, the glucose levels will decrease, and the glucagon levels will increase.

Explanation:

When a person ingests another meal after 5 p.m, the glucose levels in the blood will increase, as the body does not need all that glucose right now the insulin levels in the blood will increase to store glucose for later. The glucagon levels after a meal are very low because the aim is to store glucose not use it.

Several hours after the meal, the body needs the energy to keep operating so it will use the glucose that was stored, to do this, the levels of glucagon in blood have to increase and release the glucose, and the levels of insulin in blood have to decrease.

7 0

2 years ago

In pea plants, the allele for tall stalks (T) is dominant over the allele for short stalks (t). Suppose a cross between a tall p

vazorg [7]

Answer:

Tt - 1/2

tt - 1/2

Explanation:

A cross between a tall pea plant and a short pea plant that produces 43 tall and 47 short offpsring (almost 1:1) is most likely a cross involving a heterozygous tall individual and a homozygous short individual.

Tt x tt

Offspring = Tt Tt tt tt (50% tall and 50% short)

If one of the tall offspring (Tt) is crossed with one of the short offspring (tt):

Tt x tt

Offspring = Tt Tt tt tt

Genotype ratio = 2Tt:2tt

Hence,

Tt = 1/2

tt = 1/2

6 0

2 years ago

Read 2 more answers

A wildlife scientist finds two reptile-like organisms. Both have a post-anal tail, claws, and some common characters of reptiles

Thepotemich [5.8K]

I would say they need to look to Linneaus System of Classification, because he devised the taxonomical system of class, order, phylum, species variety, etc.

8 0

2 years ago

at which location does gravity play a role in moving tectonic plates? at the edge of the plates. in the core. in the mantle. in

yulyashka [42]

Answer:

B. At the edge of the plates

Explanation:

Gravity is the principal driving force of plate tectonics (second one is convection). It causes different density plates to move on the Earth's surface. However, when a denser plate coincides the less denser plate, the high density plate subducts below the lesser density plate. The process, therefore, is called subduction. During this collision of plates, shearing resistance increases and all pressures come at the edge of the plate. The process continues and the lithosphere drags the rest of the plate. The portion of plate below the less denser plate then reaches the mantle. Here, the edge of plate is destroyed due to high temperature of mantle as well as pressure.

7 0

1 year ago