15. White-tailed deer are mammals. Mammals have a reproductive strategy

that is not found in all animals.
Which two statements provide a cause and effect of the reproductive strategy of white-tailed deer that helps them survive?
A. It requires two parents.
B. It requires only one parent.
C. It causes very fast growth and development.
D. It produces genetic variation within a population.
E.
It results in individuals being identical to one parent.

5 answers

The two statements that provide a cause and effect of the reproductive strategy of white-tailed deer that helps them survive are:

C. It causes very fast growth and development.
D. It produces genetic variation within a population.

These points highlight key advantages of mammalian reproduction, including the faster growth of young which can aid in survival, and the genetic diversity that helps populations adapt to changing environments.

A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.
Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?
A. nervous system → musculoskeletal system → circulatory system → nervous system
B. nervous system → musculoskeletal system → nervous system →
musculoskeletal system
C. musculoskeletal system → nervous system → circulatory system → musculoskeletal system
D. musculoskeletal system → circulatory system → musculoskeletal system nervous system
-

The best pathway of systems in the rider's body, as described in the scenario, is:

B. nervous system → musculoskeletal system → nervous system → musculoskeletal system

This pathway reflects how the rider's nervous system sends signals to the musculoskeletal system to pedal and stop, and then how it continues to coordinate movements to maintain balance and stay upright as she puts her foot on the ground.

compounds are most likely to be conductors of electricity?
M. NaCl
P. K2SO
R. C12H24012
S. C2H2OH
T. Sr(NO3)2

To determine which compounds are most likely to be conductors of electricity, we need to identify which are ionic compounds, as they dissociate into ions in solution and can carry electrical current.

  1. NaCl (Sodium Chloride) - This is an ionic compound and will conduct electricity when dissolved in water.

  2. K2SO4 (Potassium Sulfate) - This is also an ionic compound and will conduct electricity when dissolved in water.

  3. C12H24O12 (likely meant to represent a sugar like sucrose) - This is a molecular compound and does not dissociate into ions in solution, meaning it does not conduct electricity well.

  4. C2H5OH (Ethanol) - This is an alcohol and a molecular compound, which means it does not conduct electricity well either.

  5. Sr(NO3)2 (Strontium Nitrate) - This is an ionic compound and will also conduct electricity when dissolved in water.

Based on this analysis, the compounds that are most likely to be conductors of electricity are:

  • M. NaCl
  • P. K2SO4
  • T. Sr(NO3)2

So, the three compounds that are likely conductors are NaCl, K2SO4, and Sr(NO3)2.