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NARA [144]
3 years ago
10

Which of the following is a true statement?

Biology
1 answer:
sergij07 [2.7K]3 years ago
7 0
2. Falling sea levels and colliding continents created connections between continents that led to great movements of land animals during the Neogene Period is the correct statement.

hope this helps!

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What is the magnitude (amplitude) of an action potential? <br> a. 30 mv <br> b. 70 mv <br> c. 100 mv
Stella [2.4K]
Option C 100mv because the membrane goes from -70 mV to +30 mV. Thus, during the action potential, the inside of the cell becomes more positive than the outside of the cell.
6 0
2 years ago
Three cells each contain a 98% water wash were soaked in different solutions cell number one is so funny solution containing 100
stepladder [879]

Answer: Cell number one is an hypotonic solution, cell number two is an isotonic solution, and cell three is an hypertonic solution.

Explanation:

Cell number one which is a 98% water content is added the 100% water solution, water moves from low to high concentration. Therefore, the water moves from the solution into the cell, which is hypotonic.

Cell number two which is a 98% water content added with a 98% water solution. These two solutions are equal to one another, so the water does not move. This is isotonic.

Cell number three which is a 98% water content added with a 80% water solution. Water moves from high to low concentrations, so water moves from the cell to the solution. The water leaves the cell, which is an hypertonic.

6 0
3 years ago
SOMEONE PLZ PLZ HELP ASAP
Vladimir79 [104]

Answer:

Clean air and water are limited resources. ... The conservation of natural lands and of working farms and forests can generate financial returns, both to ... In addition to health and food benefits, conserving land increases property values near ... and the creation of trails and parks are often viewed in terms of their costs.

Explanation:

Hope that helped

6 0
3 years ago
The pancreas and the gonads are glands with double secreation. Explain why.​
olganol [36]

Explanation:

Pancreas functions as both endocrine and exocrine gland. Hence, called as dual function gland or a mixed gland. Exocrine part of pancreas secretes digestive enzymes while, its endocrine part (islets of Langerhans) produce two hormones, i.e. insulin and glucagon.

3 0
3 years ago
What happens at each step of a dichotomous key?<br><br> PLEASE HELP ME!
Yuki888 [10]

Oh I know this, It narrows down its characteristics here is an example:

The first step in the key will be organized the following way:

1. a. wings covered by an exoskeleton

b. wings not covered by an exoskeleton

Next, the statements need to lead the observer to the next step to narrow the identification further:

1. a. wings covered by an exoskeleton go to step 2

b. wings not covered by an exoskeleton .go to step 3

Step 2 needs to consist of a pair of statements that will allow for the identification of the ladybug and the grasshopper:

2. a. body has a round shape .ladybug

b<span>. body has an elongated shape .grasshopper</span> 


5 0
3 years ago
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