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Zanzabum
3 years ago
5

You notice that water is running off the feathers of a bird in the rain. the reason is probably that the bird has coated the fea

thers with ________, which keeps the water out of them.
Biology
1 answer:
kow [346]3 years ago
6 0

Answer:

Lipids

Explanation:

The reason is that lipids are hydrophobic.

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During elongation, a charged trna first enters the ribosomal ________ site and then moves into the ________ site.
anygoal [31]
3 sites in a ribosome:

The charged tRNA first enters the ribosomal A site...then moves to the P site and finally to the E site.

Because they only ask for 2 I would say A then P.
5 0
3 years ago
In which stage of meiosis do homologous chromosomes or homologs separate?
serg [7]

Answer:

Explanation:

Anaphase 1

5 0
2 years ago
You start off with 100 E. coli cells known to divide every 20 minutes. Based on this information and using formulas for exponent
tensa zangetsu [6.8K]

Answer:

21 minutes or 0.35 hours

Explanation:

The formula for exponential population growth is

A = A_0* e^{kt}\\

where

A_0 = initial population of E.coli i.e 100

k is the rate of population growth i.e 2 as the population doubles

t is the time period i.e 20 minutes

Substituting the given values in above equation, we get -

A = 100 * e^{2 * \frac{20}{60} }\\\\A = 195

Generation time

G = \frac{t}{3.3 * log \frac{194}{100} } \\G = \frac{t}{0.949} \\G= 21 minutes

or 0.35 hours

6 0
3 years ago
A boatload of Swedish tourists, all of whom bear the MM blood group, is marooned on Haldane Island, where they are met by an equ
seropon [69]

Answer:

E.

Explanation:

The first filial generation, will have 4000MN, while the progeny of the new Haldane population will be in the second filial generation 1000 MM + 2000 MN + 1000 NN.

7 0
3 years ago
Metabolites are small molecules that:
Pavlova-9 [17]

Answer:

C) generally consist of 1,000 different substances

Explanation:

Metabolites are compounds, usually organic, that participate in the chemical reactions that take place at the cellular level. The set of these biochemical reactions, together with the intracellular physical-chemical processes, constitutes the cellular metabolism, the molecular basis of life. The metabolism includes the degradation of molecules for obtaining energy (catabolism) and the synthesis of molecules necessary for growth, reproduction and repair (anabolism).

The succession of metabolic reactions that transform a given initial substance into another is known as a metabolic pathway. The starting substance is known as a substrate or raw material. The final substance is usually known as the final product or metabolite (a metabolic pathway can generate several final products) and the intermediate substances as intermediate metabolites. An intermediate or final metabolite in one metabolic pathway may be the substrate in another, which makes the vast majority of metabolic pathways interconnected.

Metabolites can be classified into two large groups, primary and secondary. Primary metabolites are defined as those that are directly involved in the normal growth, development and reproduction of an organism with an important physiological function. On the contrary, secondary metabolites are not directly involved in these processes. The absence of a primary metabolite usually leads to immediate or short-term death while the absence of a secondary metabolite does not.

<em>According to the different types and diverse functions that fulfill there are an immense amount of metabolites</em>

3 0
3 years ago
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