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Sonbull [250]
4 years ago
15

How does a leopard frog reproduce

Biology
1 answer:
scoray [572]4 years ago
3 0
A male grabs the female around her chest with his front legs and clings until she lays her eggs in the water. ... In 2 to 3 weeks the eggs hatch into tadpoles. It can take 3 to 4 months for the tadpoles to absorb their tails, grow legs and develop lungs.
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The solutions in the arms of a U-tube are separated at the bottom of the tube by a selectively permeable membrane. The membrane
Leviafan [203]

Answer:

Option D

Explanation:

It is given that the permeable membrane at the base of the tube is permeable to NaCl solution but is not permeable to glucose.

Thus, sodium chloride from the arm of tube with high NaCl concentration will start moving towards the arm with low NaCl concentration and hence, the salt concentration will reduce on side A.

The volume will not remain constant as the concentration of NaCl on side A  will reduce thereby decreasing the water level from its initial mark

Hence, option D is correct

3 0
4 years ago
Once ice forms on a lake in winter, the water underneath the ice remains about 4°C, even if the air temperature just above the i
Ksivusya [100]

A substance floats if it is less dense, or has less mass per unit volume, than other components in a mixture. For example, if you toss a handful of rocks into a bucket of water, the rocks, which are dense compared to the water, will sink. The water, which is less dense than the rocks, will float. Basically, the rocks push the water out of the way or displace it. For an object to be able to float, it has to displace a weight of fluid equal to its own weight.

Water reaches its maximum density at 4 C (40 F). As it cools further and freezes into ice, it actually becomes less dense. On the other hand, most substances are most dense in their solid (frozen) state than in their liquid state. Water is different because of hydrogen bonding.

4 0
3 years ago
Griding quartz crystal down to produce sand is an example of a
anyanavicka [17]
I do believe its a change of state, hope it helped
7 0
3 years ago
Please answer as many as you can this is just a study guide
4vir4ik [10]

Answer:

01. the continued existence of organisms that are best adapted to their environment, with the extinction of others, as a concept in the Darwinian theory of evolution.

02. It shrinks as species begin fighting for resources.

03. The animal will experience a lack of growth.

04. Level 1: Plants and algae make their own food and are called producers. Level 2: Herbivores eat plants and are called primary consumers. Level 3: Carnivores that eat herbivores are called secondary consumers. Level 4: Carnivores that eat other carnivores are called tertiary consumers.

Explanation:

8 0
3 years ago
How is groundwater impacted by urban sprawl?
kirill [66]

Answer:

Urbanization causes changes to the land surface by altering to- pography and vegetation, increasing shallow groundwater tempera- tures.

raising or lowering water tables, and extraction of groundwater during or after construction.

Explanation:

Have A great one!

7 0
3 years ago
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