1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
3 years ago
10

Valerie hypothesizes that frogs lay more eggs in warm water than in cold water. When Valerie designs her experiment, what should

be the only variable that changes?
A.
frog species
B.
time of year
C.
water temperature
D.
water flow rates
Biology
1 answer:
Bas_tet [7]3 years ago
6 0
C. Water Temperature
You might be interested in
A bird flies by moving its wings up and down. Which two systems are most directly responsible for the movement of a bird's wings
aleksklad [387]
A. Skeletal and muscular
the other three don’t have to do with this type of internal movement though as the abdominal region and internal organs don’t have to do with this, A is the only possible answer
4 0
3 years ago
Read 2 more answers
What were the two driving forces that drove the evolution in the variation of skin color
yarga [219]

Answer:

The correct answer is: geography and UV radiation.

Explanation:

Skin variation occurred thanks to evolution, and was driven as a consequence of the geographical location of different populations of humans.

The humans that lived in hot and sunny places, closer to the equator, where much more exposed to the sun's ultraviolet radiation. In order to survive the amount of UV lights that they were exposed to, new humans in those regions were being born with a darker skin tone, which was rich in melanin (a brown pigment that protects us from the sun radiation).

Contrary to these humans that lived in the tropical areas, the humans that populated the areas that were closer to the poles, developed much lighter skin as a result of lower amounts of melanin in their skin. Since sun exposure in the poles is very limited, humans needed to receive as much as they could for the production of Vitamin D, and thus, their skins got lighter and less protected.

8 0
3 years ago
The term ____________________ describes one-celled microscopic organisms, some of which cause diseases in humans.
IRISSAK [1]
Answer will be germs like bacteria, virus, fungi, and protozoa that can cause disease
8 0
2 years ago
Las consecuencias de la sobreexplotación de los recursos naturales
alexira [117]

Answer:

Destrucción de hábitats naturales, tanto terrestres como marinos y otros acuáticos. Destrucción de ecosistemas de todo tipo. Extinción de especies animales y vegetales. Interrupción de las redes y relaciones tróficas.

Explanation:

5 0
2 years ago
"the term normally applied when two genes fail to assort independently is ________."
IgorC [24]
LINKAGE

Independent assortment refers to the allele segregation of two different genes. They are expected to be segregated from each other independently.This is not seen in monohybrids, they are usually heterozygous for an allelic pair only. Link genes cannot assort independently. These are inherited together during meiosis phase of sexual reproduction. Usually genes that are close together will tend to stick together resulting into inheritance of genes as pairs.
5 0
3 years ago
Other questions:
  • Which biome receives 200 to 400 cm of rain per year?
    9·1 answer
  • Where did they light dependent reactions occur
    9·1 answer
  • What would happen to an organism if it's cell membranes became permeable to most substances
    9·2 answers
  • Which pair of statements best describes an essential amino acid?
    10·2 answers
  • To transform bacteria with plasmids, technicians first make the bacteria competent (capable of taking up DNA) by placing them in
    12·1 answer
  • Which biome is characterized by permafrost
    14·2 answers
  • Help me please , A , B , C OR D
    13·1 answer
  • Mention any two of the functions of proteins in animals​
    13·1 answer
  • Are trees producers?
    12·1 answer
  • Converting from the US customary system to the metric system, 16 fluid ounces is approximately equal to a) 1 gallon. b) 160 mill
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!