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umka2103 [35]
3 years ago
14

BIOLOGY!!! HELP PLSSSS. 2,3 & 5

Biology
1 answer:
Flura [38]3 years ago
4 0
2- shrink 3-expand
5-expand 6-shrink
You might be interested in
11. Which structure connects an ovary to the uterus?
liberstina [14]

Answer:

a Fallopian tube

Explanation:

fallopian tubes, are the female structures that transport the ova from the ovary to the uterus each month. In the presence of sperm and fertilization, the uterine tubes transport the fertilized egg to the uterus for implantation.

6 0
3 years ago
Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next.
Irina-Kira [14]

<u> Allele frequencies to change from one generation to the next.-</u>

<u>B. </u><u>Mutation</u><u>; C. Random genetic drift; D. </u><u>Migration</u><u>; F. Natural selection</u>

  • Selection, mutation, migration, and genetic drift are the mechanisms that effect changes in allele frequencies.
  • When one or more of these forces are acting, the population violates Hardy-Weinberg assumptions, and evolution occurs.

Why do allele frequencies change from one generation to the next?

Random selection: Allele frequencies may fluctuate from one generation to the next when people with particular genotypes outlive those with different genotypes.

No mutation: Allele frequencies may fluctuate from one generation to the next if new alleles are produced via mutation or if alleles mutate at different rates.

What are 5 factors that cause changes in allele frequency?

  • A population, a collection of interacting individuals of a single species, exhibits a change in allele frequency from one generation to the next due to five main processes.
  • These include natural selection, gene flow, genetic drift, and mutation.

Learn more about allele frequency

brainly.com/question/7719918

#SPJ4

<u>The complete question is -</u>

Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next. Check all that apply

A. Inbreeding

B. Mutation,

C. random genetic drift

D. migration

E. extinction

F. natural selection

6 0
2 years ago
A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur
mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

w=mg     ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

g=\frac{GM}{r^2}

where, g = acceleration due to gravity = ?m/s^2

G = Universal gravitational constant = 6.67\times 10^{-11}Nm^2/kg^2

M = mass of the planet = 5.97\times 10^{24}kg

r = distance of the person from the planet = 6.38\times 10^6m

Putting values in above equation, we get:

g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2

Putting this value in equation 1, we get:

w=65kg\times 9.782m/s^2=635.83N

Hence, the weight of the person above the surface of a planet is 635.83N.

7 0
3 years ago
The organisms of this cell type have no membrane bound organelles, and the DNA is not found within a nucleus
Alenkinab [10]

Answer:

prokaryotic cells have no membrane bound organelles

7 0
3 years ago
When a sea floor spreads what do the plates do
spayn [35]
Seafloor spreading occurs when two plates diverge
4 0
3 years ago
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