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never [62]
2 years ago
9

I need this answer, anything will help.

Biology
1 answer:
just olya [345]2 years ago
8 0

Answer:

B. Gravel has more porosity than sand

Explanation:

Porosity is the gap between stuff. Water would go through gravel easier than sand.  Definition of Porosity is -(of a rock or other material) having minute spaces or holes through which liquid or air may pass.

You might be interested in
2 only please and thank u
Vladimir79 [104]

G) The objects must be different temperatures

The way that heat transfer works is that the warmer object transfers energy to the colder one in order to reach equilibrium

7 0
3 years ago
Question involving the equations for Hardy Weinberg equilibrium (A^2+2Aa+a^2=1, A+a=1)
Alinara [238K]

Answer:

Frequency of dominant allele is 0.9029

Explanation:

Total number of organisms = 12,845

Number of organisms representing dominant trait = 11,596. These organisms might have heterozygotes with one dominant allele and one recessive allele.

Hence, Number of organisms with recessive alleles = 12845 – 11596 = 1249

Frequency of recessive allele (q) = 1249/12845 = 0.0971

Frequency of dominant allele (p) = 1- q = 1-  0.0971 = 0.9029

5 0
3 years ago
A marine biologist has dredged up an unknown animal from the seafloor. Describe some of the characteristics that could be used t
jeka57 [31]

Answer:

The first thing to look at would be type of symmetry the organism exhibits. If it is asymmetrical then it would be a sponge and the discovery could stop right there. If not, other characteristics need to be investigated.

Knowing the type of body cavity this organism has would be helpful.

It would also be beneficial to know what type of skeleton (endo or exo) this organism has and what its appendages look like.

Finally, the type of digestive tract and the presence or absence of a head would help to determine what this creature is.

4 0
2 years ago
List the 4 components of health related fitness and the appropriate guidelines for each
gregori [183]
These components include; 
Cardiorespiratory Endurance: Ability of the circulatory and respiratory systems to supply oxygen during sustained physical activity. 
Guidelines
3 - 5 days per week
20-60 minutes a day
intensity of 60%-90% of MHR

Muscular strength; the ability to perform activities that require high levels of muscular force.
2 -3 days per week
2-6 sets
≤ 6 repetitions 
Intensity of 80 - 90 % of 1RM

Muscular endurance; 
2 - 3 days per week 
2 - 3 sets
≥ 12 repetitions
Intensity of 60% - 70% of 1RM

Flexibility 
2- 3 days a week
≥ 4 repetitions per muscle group 
15 - 60 seconds

Body composition     Women   men
Essential fat               10-13%   2-5 %
Athletes                     14-20%  6-13 %
Fitness                      21-24%  14-17 %
Average                    25-31%    18-24%
Obese                      ≥ 32%       ≥ 25%



5 0
3 years ago
The creation of offspring carrying genetic information from a single parent is called
mina [271]
First of all, only hermaphrodites can produce offspring by themselves, and most of the time, they end up being genetically mutated, but either way it is called asexual reproduction

3 0
3 years ago
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