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Nutka1998 [239]
3 years ago
12

Is KCI classified as a compound?

Biology
1 answer:
mrs_skeptik [129]3 years ago
4 0

Answer:

KCl is an ionic compound.

Explanation:

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Think back about your experience in this lab using a dichotomous key. What might make it hard for someone to use a dichotomous k
krok68 [10]

Answer: why it is hard to use dichotomous key in the lab are;

If the organisms you want to use it for are similar.

If you can't see the little characteristics posses by the organisms you are using it for.

If all the pictures does not reveal all the important features of the organisms.

It is very difficult to use it to determine the anatomical structure.

Explanation:

Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.

7 0
3 years ago
What membrane activities requires energy from atp hydrolysis?
NikAS [45]

Answer:

active transport, like Na + ions leaving the cell

Explanation:

The active transport requires an energy expenditure to transport the molecule from one side of the membrane to the other, but the active transport is the only one that can transport molecules against a concentration gradient, just as the diffusion facilitated the active transport is limited by the number of transport proteins present.

Two major categories of active, primary and secondary transport are of interest. The primary active transport uses energy (generally obtained from ATP hydrolysis), at the level of the same membrane protein producing a conformational change that results in the transport of a molecule through the protein.

The best known example is the Na + / K + pump. The Na + / K + pump performs a countertransport ("antyport") transports K + into the cell and Na + outside it, at the same time, spending on the ATP process.

The secondary active transport uses energy to establish a gradient across the cell membrane, and then uses that gradient to transport a molecule of interest against its concentration gradient.

8 0
3 years ago
Chemical transmitters can stimulate any receptor site to initiate an action.
dimaraw [331]
Not true, certain chemical transmitters stimulate certain receptors
4 0
2 years ago
Please help me I have no idea what it is
notsponge [240]

Answer:

A. A year of drought followed by four years of average or above-average rain

Explanation:

In the first year the Finches population goes down drastically meaning that a disaster must have occurred that would negatively affect the population, a drought. The next four years the Finch population increases steadily so the average rainfall must have been average or above average according to the graph.

3 0
2 years ago
What do you think? Were zebra mussels intentionally transported to the U.S.? Explain your reason for your answer.
UkoKoshka [18]

The transport of zebra mussels to the US took place involuntarily through the discharge of ballast water from European ships with contaminated cargo, in the 1980s, spreading across the Great Lakes region.

<h3 /><h3>Impacts on the environment</h3>

This freshwater mollusk can negatively impact the environment by filtering out algae that feed native species and clogging up water transport and storage systems.

Therefore, due to its high reproduction rate, zebra mussels spread rapidly and render water systems unusable, generating significant ecological and economic impacts.

Find out more information about zebra mussels here:

brainly.com/question/368887

6 0
2 years ago
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